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A modifier is essentially a variable used in internal calculations. However, unlike Defines, modifiers are dynamically changeable within any modifier block. In general, modifiers are typically used to create a consistent and long-lasting effect that can be easily reversed.
Each modifier has the exact same layout: modifier_name = 0.1. This adds the specified value to the modifier's total value for the scope where it is applied.^[a] For example, assuming that there are no other modifiers changing that to the country, having political_power_gain = 0.2 and political_power_gain = -0.05 applied to the country (potentially in different modifier blocks) will result in a total of +0.15 political power gain above the base gain. Due to how modifiers work, a modifier with the value of 0 will always do nothing. This also means that negative modifiers will always work and have the opposite effect of positive modifiers.
A modifier's current total value can be received as a variable by reading modifier@modifier_name, such as set_variable = { my_var = modifier@political_power_gain }. This works for countries and states, but for unit leaders, unit_modifier@modifier_name and leader_modifier@modifier_name is used instead.

The following are not modifiers, even if they are similar:

Research bonuses allowing to grant a boost to a specific technology category. This is, instead, an argument within ideas, which can be applied in the same way for advisors, but not elsewhere.
Equipment bonuses, such as decreasing the cost to build an equipment archetype. Similarly, this is an argument within ideas, which can be applied in the same way for advisors and country leader traits, but not elsewhere.
Opinion modifiers, which can be applied to change the opinion (including trade influence) within countries, defined in /Hearts of Iron IV/common/opinion_modifiers/*.txt files.

Applying a modifier

There are a large variety of ways to apply modifiers, but these are the primary ones:

Ideas - This primarily includes but is not limited to national spirits and hidden ideas. These are the simplest way to add a modifier to a country by using an effect block, such as a national focus reward, by using add_ideas or add_timed_idea. These only work for countries.
Dynamic modifiers - This is similar to ideas (Showing up in the same screen for countries), but they accept variables and can also be applied on states and unit leaders. These are the primary way to add modifiers to a state.
Traits:
- Country leader traits - These can be added to ideas (including advisors which function similarly) and country leaders, which'll apply on the country.
- Unit leader traits - These can be added to unit leaders and apply effects on the leaders themselves or their units. These are the primary way to add a modifier to a unit leader.
Static modifiers:
- Global modifiers - These are entirely hard-coded on when they apply, such as those used for stability and war support bonuses. However, these can be changed in what they apply.
- Provincial modifiers - These are the primary if not the only way to apply a modifier towards a specific province.
- Relation modifiers - These are the only way to apply a targeted modifier from one country towards the other without needing to specify a specific country tag within the targeted modifier block.

Each modifier follows the same structure of being assigned a number, such as the following formatting within many blocks that support modifiers, such as anything listed above:

modifier = { # While this is present in, for example, ideas or decisions, it's equally likely to see is modifier = { ... } being omitted entirely in other entries, such as country leader traits.
    political_power_gain = 0.1
    disabled_ideas = 1
}

No modifiers can have a non-numeric value, including boolean ones that must be 1 to have any effect. Note that modifiers do not support if statements. The closest replica possible of one are dynamic modifiers, which allow using variables.

Tooltip modification

Modifier blocks support, within them, the hidden_modifier = { ... } block, which can be used to provent the modifiers within from showing up in the tooltip. Additionally, custom_modifier_tooltip = localisation_key_tt can be used to add a custom localisation string to appear within the localisation as one of the modifiers. In combination, this will look like the following:

modifier = {
    hidden_modifier = {
        political_power_gain = 0.1
    }
    custom_modifier_tooltip = political_power_gain_tt
}

Custom modifier tooltips do not support dynamic commands, which includes anything that uses square brackets.

Dynamic modifiers

If you want to apply a consistent modifier to a country, it's easier to use ideas instead.

Dynamic modifiers, defined in /Hearts of Iron IV/common/dynamic_modifiers/*.txt files, are a type to apply modifiers that accept variables. The modifiers are updated daily, unless the force_update_dynamic_modifier effect is used to forcefully refresh the impact of modifiers. They can be applied to both countries and states, in case of the latter, the variable must be defined for the state, not for the country-owner or controller. They can also be applied to unit leaders.

Unlike ideas, there is no way to reload definitions of dynamic modifiers via debug mode or console, any changes to their definitions require a game restart to apply in-game. Additionally, due to the daily refresh of the variable check, these are more poorly optimised than ideas are. Due to this, when it's feasible to not use variables for a country-scoped dynamic modifier, it's both easier and more optimised to use national spirits instead.

The dynamic modifiers are evaluated daily for each scope. The process consists of the following:

At the beginning of each day, each variable modifier value for each dynamic modifier is temporarily reset to 0, even if the null-coalescing operator is used to assume a different number as the default. Constant values do not get reset.
Dynamic modifiers are then evaluated in the order that they were given to the scope with add_dynamic_modifier.
The variable values inside of a dynamic modifier are assumed to be 0 until every variable inside is calculated. This includes those that rely on other modifiers, which includes the modifier@modifier_name game variable or MTTH variables that utilise that game variable.
After the variables are calculated for a single dynamic modifier, the modifiers apply to the scope with the dynamic modifier and the game moves onto the next dynamic modifier added to the current scope until each one is calculated.

Arguments

icon decides what is the icon used for the dynamic modifier. The icon uses a sprite defined in any /Hearts of Iron IV/interface/*.gfx file. If the icon is not specified, it will be hidden.
enable decides when exactly the dynamic modifier's modifiers apply. If the dynamic modifier is set, but the country or state it's set to does not fulfill the requirements, its effects will not apply. Optional.
remove_trigger will automatically remove the dynamic modifier upon the triggers being met. Optional.
attacker_modifier will, if set to true within a state-scoped dynamic modifier, additionally makes the modifier apply to divisions that, while not being present in the state with the dynamic modifier, are attacking an enemy located on that state. Optional, defaults to false.

Modifiers are put directly inside the dynamic modifier as a list. Non-modifier idea attributes such as equipment_bonus or research_bonus are impossible to use inside of dynamic modifiers.

Example

dynamic_modifier_name = {
    icon = GFX_idea_unknown
    enable = { always = yes }
    remove_trigger = {
        NOT = {
            has_variable = var_name
        }
    }
    political_power_gain = var_name # Variable value
    weekly_manpower = 1000 # Constant value
    stability_factor = GER.stability_var # Checks specifically GER's variable, regardless of where the modifier is applied
}

Adding a dynamic modifier

Dynamic modifiers are added via the add_dynamic_modifier effect. A typical addition of a dynamic modifier looks like the following:

add_dynamic_modifier = { modifier = dynamic_modifier_name }

Since dynamic modifiers do not have assigned scopes, the same modifier can be assigned to either a country, a state, a unit leader, or several at once – this is decided only by where the add_dynamic_modifier effect is executed.

Within GUI, a dynamic modifier will take up these places if visible:

For a country, a dynamic modifier will show up in the list of national spirits, appearing after the regular spirits.
For a state, a dynamic modifier will show up in the special section for them in the bottom of the selected state view, marked with dynamic_modifiers_grid in /Hearts of Iron IV/interface/countrystateview.gui.

When adding a dynamic modifier, it is also possible to make it be timed or make it use a different scope as the variable's base. For example, the following code will apply dynamic_modifier_name to GER for 30 days, but the variables will be read off POL:

GER = {
    add_dynamic_modifier = {
        modifier = dynamic_modifier_name
        scope = POL  # The modifier itself will be applied to GER, but the variables will be read off POL.
        days = 30
    }
}

In particular, assuming that dynamic_modifier_name is the example dynamic modifier created previously, if you do set_variable = { POL.var_name = 0.3 }, then the dynamic modifier assigned to GER as the result of this effect will give 0.3 daily political power gain. However, if the dynamic modifier scopes into ROOT for the variable as political_power_gain = ROOT.var_name, then set_variable = { GER.var_name = 0.3 } would be done.

A dynamic modifier is removed via remove_dynamic_modifier, phrased similarly to add_dynamic_modifier: remove_dynamic_modifier = { modifier = dynamic_modifier_name }. If, when added, the dynamic modifier had a scope assigned to it, the scope will have to be specified when removing it as well.

Modifiers that use variables will not show up in the tooltip of add_dynamic_modifier, while those that are set to a static value will. While this may make the dynamic modifier appear broken when only reading the tooltip, this will not be actually the case once it gets added. In this case, the tooltip of the effect can be changed, with the effect adding the dynamic modifier hidden.

Static modifiers

Static modifiers are stored in /Hearts of Iron IV/common/modifiers/*.txt files, where each code block within is a modifier block with the name being the ID of the static modifier. There are 5 main categories of static modifiers:

Global modifiers

Global modifiers are applied by the hard-coded game features. Their names mustn't be changed, as the code uses them internally, but their effects can be edited. Examples of global modifiers are the penalty for non-core states or the effects of stability and war support.

Difficulty modifiers

These are applied within /Hearts of Iron IV/common/difficulty_settings/*.txt files. This is used in the menu to strengthen specific countries at the game's start within game rules. If there are no difficulty settings defined, the menu will not be possible to open.
Each difficulty setting is defined as a difficulty_setting = { ... } block, which must lie within an overarching difficulty_settings = { ... } block. The following arguments can go into difficulty settings:

key = localisation_key is the localisation key used as the name of the difficulty setting as it shows up in the game rules menu/
modifier = static_modifier sets the static modifier to be used by this difficulty setting.
countries = { ... } is a whitespace-separated list of country tags for which the difficulty setting applies.
multiplier = 2.0 is a value by which the static modifier gets multiplied at the max value. As there are 5 levels for each difficulty rule, including 0, this gets split into quarters for each level, with the second being a quarter, the third being a half, and the fourth being three quarters.

An example of a difficulty setting file is the following:

difficulty_settings = {
    difficulty_setting = {
        key = difficulty_weaken_GER
        modifier = weaken_country
        countries = { GER }
        multiplier = 2.0
    }
    difficulty_setting = {
        key = difficulty_weaken_SOV
        modifier = weaken_country
        countries = { SOV UKR BLR }
        multiplier = 2.0
    }
}

Relation modifiers

Not to be confused with opinion modifiers. The relation modifiers apply a targeted modifier from one country towards an another one, automatically removed when the trigger is met. ROOT is the country that the modifier is applied to and FROM is the target. An example would be:

test_relation_modifier = {
	valid_relation_trigger = {
		FROM = {
			has_government = ROOT		# same ruling party as ROOT
		}
	}
	compliance_gain = 0.2				# FROM's states have 20% more compliance gain when controlled by ROOT
}

They can be added by the add_relation_modifier effect, used as such:

add_relation_modifier = {
	target = TAG
	modifier = test_relation_modifier
}

remove_relation_modifier, which works similarly, can remove them.

Province modifiers

Province modifiers apply a modifier to a specific province rather than a state. They can be applied via the add_province_modifier effect, and removed with remove_province_modifier. More info on how to use these can be seen in the effects page.
An example definition looks like

mod_modifier = { 
	army_speed_factor = -0.5
	army_defence_factor = 0.5
	dig_in_speed_factor = 0.5
}

Many state-scope modifiers will work in province scope as well. In order to make the GFX in GUI, you first need to edit /Hearts of Iron IV/interface/countrystateview.gui. The icon must be defined inside custom_icon_container, similarly to other examples. An example definition looks like

iconType = {
	name = "<modifier name>_icon"
	spriteType = "GFX_modifiers_<modifier name>_icon"
	position = { x = 0 y = 0 }
	Orientation = "UPPER_LEFT"			
}

The spriteType you have defined needs to be defined in /Hearts of Iron IV/interface/*.gfx similarly to this example:

spriteType = {
	name = "GFX_modifiers_<modifier name>_icon"
	textureFile = "gfx/interface/modifiers_<modifier name>_icon.dds"
}

Balance of power modifiers

Balance of power modifiers typically include within of themselves the power_balance_daily and/or power_balance_weekly modifiers in order to gradually tip the balance towards one side. For example,

my_bop_modifier = {
    power_balance_weekly = -0.01 # Changes by 1% each week to the left, in the range of -1 to 1.
}

Balance of power modifiers are added via the add_power_balance_modifier effect as such:

add_power_balance_modifier = {
    id = my_bop    # The ID of the balance of power
    modifier = my_bop_modifier # The modifier to add
}

The remove_power_balance_modifier effect, with the same syntax, or remove_all_power_balance_modifiers can be used to remove these from the country.

Modifier definitions

Modifier definitions allow the creation of a custom modifier, which can be accessed as a variable when you wish to use it. After being defined, they function entirely like a new variable, being possible to read as a variable with the same modifier@modifier_name procedure. They will not have any effect by default and function only as a way to change the variable's value in an additive way with modifier blocks.
Each modifier token is defined within /Hearts of Iron IV/common/modifier_definitions/*.txt files as a separate code block, where the name of the code block serves as the ID of the modifier definition. There are the following arguments that can go inside of it:

color_type = good decides the colour of the modifier's value itself. There are three values, good, bad, and neutral. neutral is permamently yellow, while good turns the positive values green and negative values red. bad is the reversal of good.
value_type = percentage decides the way the number will show up in the tooltip. There are the following values this argument can be set to:
- number will make the exact value of the modifier show up. 0.02 will show up like "Modifier definition: 0.02".
- percentage will make the modifier show up as a percentage on the scale from 0 to 1. 0.2 will show up like "Modifier token: 20%".
- percentage_in_hundred will make the modifier show up as a percentage on the scale from 0 to 100. 10 will show up like "Modifier token: 10%".
- yes_no shows up as a boolean: anything larger than 1 will shows up as yes, while 0 will show up as no.
precision = 1 decides how many numbers will be shown after the period in the tooltip. For example, if it is set to 1, the tooltip will show 0.341 as if it was 0.3. Note that the game inherently does not support more than 3 decimal numbers, so it cannot be larger than 3.
postfix decides what will be added after the value of the modifier in the tooltip. Allowed values are 'none' (Default), 'days', 'hours', and 'daily'.
category decides on the category of the modifier. By default, the category is 'all', which makes it be in every single category. Certain tooltips will only show modifiers if they belong to a certain category. It is possible to set multiple categories for the same modifier definition by defining them one after another.

The allowed values are 'none', 'all', 'country', 'state', 'unit_leader', 'army', 'naval', 'air', 'peace', 'politics', 'ai', 'defensive', 'aggressive', 'war_production', 'military_advancements', 'military_equipment', 'autonomy', 'government_in_exile', and 'intelligence_agency'.

The modifier definition's ID is also used as the localisation key needed to change the name of the modifier depending on the currently turned on language.

Examples

modifier_definition_example = {
	color_type = good
	value_type = number
	precision = 1
	postfix = daily
	
	category = country
	category = state
}
modifier_definition_example_2 = {
    color_type = bad
    value_type = percentage
}

Using in variables

The function of modifier definitions is to modify the value of a game variable, which can be read by other variables. You can set a variable to be equal to the sum of all values of the same modifier token in the current scope by doing set_variable = { var_name = modifier@modifier_token_name }. This example will set var_name to be equal to the total value of modifier_token_name.

Note that, unlike countries and states, unit leaders use leader_modifier@modifier_definition_name or unit_modifier@modifier_definition_name in their scopes.

Example usage of making a modifier token create civilian factories in random core states monthly, in any on action file:

Example

on_actions = {
    on_monthly = {
        effect = {
            if = {
                limit = {
                    check_variable = { modifier@modifier_definition_example > 0 }
                }
                for_loop_effect = {
                    start = 0
                    end = modifier@modifier_definition_example
                    random_owned_controlled_state = {
                        limit = {
                            is_core_of = ROOT
                            free_building_slots = {
                                building = industrial_complex
                                size > 0
                                include_locked = no
                            }
                        }
                        add_building_construction = {
                            type = industrial_complex
                            level = 1
                            instant_build = yes
                        }
                    }
                }
            }
        }
    }
}

Opinion modifiers

Despite their name, opinion modifiers are not related to modifiers in any way, instead they are used to modify the diplomatic or economic relations between a pair of countries.

The opinion modifiers are made in any /Hearts of Iron IV/common/opinion_modifiers/*.txt file as an entry in the opinion_modifiers = { ... } block, with the name of the entry being the ID of the opinion modifier. In case of there being several entries with the same ID, the one that was evaluated later based on the filename and order in files will take priority, meaning that copying a base game file is never necessary in a mod.

There are the following attributes that are used in opinion modifiers:

trade = yes is used to decide whether the opinion modifier changes the diplomatic relations or the trade opinion from one country to another. If unset, defaults to being false making it diplomatic.
value = -10 is the value of the modifier that decides by how much the diplomatic or trade opinion should change once the opinion modifier is added.
decay = 1 details the speed at which the opinion modifier trends towards zero monthly. Optional, defaults to the modifier not changing if unset.
days = 10 | months = 2 | years = 1 decides the time for how much the opinion modifier should last before it will get automatically removed. A month is interpreted as exactly 30 days, while a year is 365. Optional, the modifier will be permanent if neither is set.
min_trust = 10 | max_trust = -10 detail the minimum and maximum value that the opinion modifier can change to. As the only non-hardcoded way to change the value of an existing opinion modifier is through decay, this can be used to limit how far it can apply.

The localisation is created in any /Hearts of Iron IV/localisation/english/*_l_english.yml file encoded in UTF-8 using the byte order mark (aka UTF-8-BOM), with the localisation key being the name of the modifier.

Examples

Inside of a new /Hearts of Iron IV/common/opinion_modifiers/*.txt file:

opinion_modifiers = {
    test_trade_modifier = {
        trade = yes
        value = -100    # Provides -100 trade opinion for 2 months
        months = 2
    }
    test_diplomatic_modifier = {
        value = 20      # Provides +20 diplomatic opinion that decays by 0.5 per month
        decay = 0.5
    }
}

Inside of a new /Hearts of Iron IV/localisation/english/*_l_english.yml file:

l_english:
 test_trade_modifier: "Testing trade modifier"
 test_diplomatic_modifier: "Testing diplomatic modifier"

Implementation

New opinion modifiers can only be added using the add_opinion_modifier effect (or the similar reverse_add_opinion_modifier) in any effect block, such as a focus reward, a country history file, or an idea's on_add and on_remove. Similarly, already applied new opinion modifiers can only be removed with remove_opinion_modifier. When add_opinion_modifier is used to apply an opinion modifier, only the country where the effect is executed will change its opinion towards the target.

There is no way to use a modifier block to directly apply an opinion modifier, but it can be simulated by adding or removing an opinion modifier at the same time the modifier block's effects are. For example, this national spirit would simulate applying an opinion modifier towards every other country that has the idea:

Example code of a national spirit that uses opinion modifiers

ideas = {
    country = {
        idea_opinion_modifier = {
            on_add = { # Note: Doesn't work if the idea is added within country history or a bookmark's effect.
                every_other_country = { # If it's added in country history, then replicate the effects there as well.
                    limit = {
                        has_idea = idea_opinion_modifier
                    }
                    add_opinion_modifier = {
                        target = ROOT
                        modifier = test_diplomatic_modifier
                    }
                    reverse_add_opinion_modifier = {
                        target = ROOT
                        modifier = test_diplomatic_modifier 
                    }
                }
            }
            on_remove = {
                every_other_country = {
                    limit = {
                        has_idea = idea_opinion_modifier
                    }
                    remove_opinion_modifier = {
                        target = ROOT
                        modifier = test_diplomatic_modifier
                    }
                    ROOT = {
                        remove_opinion_modifier = {
                            target = PREV
                            modifier = test_diplomatic_modifier 
                        }
                    }
                }
            }
            modifier = {
                custom_modifier_tooltip = add_opinion_modifier_tt # Since on_add/on_remove aren't shown to the player
            }
        }
    }
}

List of modifiers

The list of modifiers may be outdated. A complete, but unsorted, list of modifiers can be found in /Hearts of Iron IV/documentation/modifiers_documentation.html or /Hearts of Iron IV/documentation/modifiers_documentation.md.

Name	Effects	Examples	Modifier type	Notes	Version added
monthly_population	Changes the monthly population gain in states owned by the country.	monthly_population = 0.5	Percentual.	Does not work with states.	1.0
nuclear_production	Enables the production of nukes.	nuclear_production = 1	Boolean (only 1).		1.0
nuclear_production_factor	Changes speed at which nukes are produced.	nuclear_production_factor = 0.5	Percentual.	Works in state scope, in which case it'll apply to the owner.	1.0
research_sharing_per_country_bonus	Changes the bonus in research speed per country when technology sharing.	research_sharing_per_country_bonus = 0.5	Flat.		1.3
research_sharing_per_country_bonus_factor	Changes the bonus in research speed per country when technology sharing by a percentage.	research_sharing_per_country_bonus_factor = 0.5	Percentual.		1.3
research_speed_factor	Changes the research speed.	research_speed_factor = 0.5	Percentual.		1.0
local_resources_factor	Resource extraction efficiency. Modifies the amount of available resources.	local_resources_factor = 0.3	Percentual.		1.0
surrender_limit	Changes the percentage of victory points the country needs to lose control of to capitulate.	surrender_limit = 0.1	Percentual.	The larger, the more victory points are needed to capitulate a country.	1.0
max_surrender_limit_offset	Controls the maximum surrender progress of a nation.	max_surrender_limit_offset = 0.3	Flat.	For example, 0.4 means that the country cannot require more than 60% victory points to capitulate, no matter the surrender_limit.	1.9
forced_surrender_limit	Changes the percentage of victory points the country needs to lose control of to capitulate, bypassing the minimum or maximum.	forced_surrender_limit = 0.1	Percentual.	The larger, the more victory points are needed to capitulate a country. Applied after the minimum and maximum are applied, leading to making it possible to have it below 20% or above the maximum defined with max_surrender_limit_offset.	1.0

Name	Effects	Examples	Modifier type	Notes	Version added
min_export	Changes the amount of resources to market.	min_export = 0.5	Flat.		1.0
trade_opinion_factor	Makes AI more likely to purchase resources from this country.	trade_opinion_factor = 0.5	Percentual.		1.0
defensive_war_stability_factor	Changes the penalty to the stability invoked by participating in a defensive war.	defensive_war_stability_factor = 0.5	Percentual.		1.0
disabled_ideas	Disables manually changing ideas (including ministers and laws).	disabled_ideas = 1	Boolean (only 1).		1.9
<idea\|character slot>_cost_factor	Changes the cost in political power to add an idea or character within the specified slot.	political_advisor_cost_factor = 0.5	Percentual.	Idea slots can be found in common/idea_tags. Requires an idea or a character of that category to be present in an earlier-evaluated file.	1.4
<idea category type>_category_type_cost_factor	Changes the cost in political power to add an idea within any of the categories with the specified type.	air_spirit_category_type_cost_factor = 0.5	Percentual.	Idea category definitions can be found in /Hearts of Iron IV/common/idea_tags/*.txt files, a type is assigned with `type = army_spirit`.	1.10
<ledger>_advisor_cost_factor	Changes the cost in political power to add an advisor assigned the specified military ledger.	air_advisor_cost_factor = 0.5	Percentual.	Ledgers are assigned to categories and characters in common/idea_tags and common/ideas. Modifier works with air, army, and navy.	1.11
unit_leader_as_advisor_cp_cost_factor	Changes the cost in command power to turn a unit leader into an advisor.	unit_leader_as_advisor_cp_cost_factor = 0.5	Percentual.		1.11
improve_relations_maintain_cost_factor	Changes the cost in political power to maintain improvement of relations.	improve_relations_maintain_cost_factor = 0.5	Percentual.		1.4
female_random_country_leader_chance	Changes the chance for a randomly-generated country leader to be female.	female_random_country_leader_chance = 0.3	Percentual.		1.0
offensive_war_stability_factor	Modifies the stability penalty received from participating in an offensive war.	offensive_war_stability_factor = 0.3	Percentual.		1.0
party_popularity_stability_factor	Modifies the stability gained by the popularity of the ruling party.	party_popularity_stability_factor = 0.3	Percentual.		1.0
political_power_cost	Daily cost in political power.	political_power_cost = 0.3	Flat.		1.0
political_power_gain	Modifies daily gain in political power.	political_power_gain = 0.3	Flat.		1.0
political_power_factor	Modifies daily gain in political power by a percentage.	political_power_factor = 0.3	Percentual.		1.0
stability_factor	Modifies stability of the country.	stability_factor = 0.3	Flat.		1.0
stability_weekly	Modifies weekly stability gain of the country.	stability_weekly = 0.01	Flat.		1.0
stability_weekly_factor	Modifies weekly stability gain of the country by a percentage.	stability_weekly_factor = 0.3	Percentual.		1.0
war_stability_factor	Modifies the stability loss caused by being at war.	war_stability_factor = 0.3	Percentual.		1.0
war_support_factor	Modifies war support of the country.	war_support_factor = 0.3	Flat.		1.0
war_support_weekly	Modifies weekly war support gain of the country.	war_support_weekly = 0.01	Flat.		1.0
war_support_weekly_factor	Modifies weekly war support gain of the country by a percentage.	war_support_weekly_factor = 0.3	Percentual.		1.0
weekly_casualties_war_support	Modifies weekly war support gain of the country depending on the casualties suffered by it.	weekly_casualties_war_support = 0.006	Percentual.		1.12
weekly_convoys_war_support	Modifies weekly war support gain of the country depending on the amount of its convoys that have been sunk.	weekly_convoys_war_support = 0.006	Percentual.		1.12
weekly_bombing_war_support	Modifies weekly war support gain of the country depending on the enemy bombing of its states.	weekly_bombing_war_support = 0.006	Percentual.		1.12
drift_defence_factor	Ideology drift defense.	drift_defence_factor = 0.3	Percentual.		1.0
power_balance_daily	Pushes the power balance by a specified amount on each day.	power_balance_daily = 0.01	Flat.	Positive values result in it being pushed right, while negatives result in it being pushed left.	1.12
power_balance_weekly	Pushes the power balance by a specified amount on each week.	power_balance_weekly = 0.01	Flat.	Positive values result in it being pushed right, while negatives result in it being pushed left.	1.12
<ideology>_drift	Daily gain of the specified ideology.	communism_drift = 0.03	Flat.		1.0
<ideology>_acceptance	Likelihood of AI to accept offers from countries of the specified ideology.	fascism_acceptance = 50	Flat.		1.0

Name	Effects	Examples	Modifier type	Notes	Version added
civil_war_involvement_tension	Changes the world tension amount necessary to intervene in an ally's civil war.	civil_war_involvement_tension = 0.5	Flat.		1.0
enemy_declare_war_tension	Changes the world tension required for an enemy to justify a wargoal on us.	enemy_declare_war_tension = 0.5	Flat.		1.0
enemy_justify_war_goal_time	Changes the time required for an enemy to justify a wargoal on us.	enemy_justify_war_goal_time = 0.5	Percentual.	This also modifies the cost in political power.	1.0
faction_trade_opinion_factor	Changes the opinion gain gained by trade between faction members.	faction_trade_opinion_factor = 0.5	Percentual.		1.0
generate_wargoal_tension	Changes the necessary tension for us to generate a wargoal.	generate_wargoal_tension = 0.3	Flat.		1.0
guarantee_cost	Cost in political power for the country to guarantee an another country.	guarantee_cost = 0.3	Percentual.		1.4
guarantee_tension	Necessary world tension for the country to guarantee an another country.	guarantee_tension = 0.3	Flat.		1.0
join_faction_tension	Necessary world tension for the country to join a faction.	join_faction_tension = 0.3	Flat.		1.0
justify_war_goal_time	The amount of time necessary to justify a wargoal.	justify_war_goal_time = 0.3	Percentual.	This also modifies the cost in political power.	1.0
justify_war_goal_when_in_major_war_time	The amount of time necessary to justify a wargoal when in a war with a major country.	justify_war_goal_when_in_major_war_time = 0.3	Percentual.	This also modifies the cost in political power.	1.0
lend_lease_tension	Necessary world tension for the country to lend-lease.	lend_lease_tension = 0.3	Flat.		1.0
lend_lease_tension_with_overlord	Necessary world tension for the country to lend-lease to its overlord.	lend_lease_tension_with_overlord = 0.3	Flat.		1.13
opinion_gain_monthly	Changes opinion gain from the 'Improve relations' diplomatic action.	opinion_gain_monthly = 5	Flat.		1.0
opinion_gain_monthly_factor	Changes opinion gain from the 'Improve relations' diplomatic action by a percentage.	opinion_gain_monthly_factor = 0.3	Percentual.		1.0
opinion_gain_monthly_same_ideology	Changes opinion gain from the 'Improve relations' diplomatic action for countries of the same ideology.	opinion_gain_monthly_same_ideology = 5	Flat.		1.0
opinion_gain_monthly_same_ideology_factor	Changes opinion gain from the 'Improve relations' diplomatic action for countries of the same ideology by a percentage.	opinion_gain_monthly_same_ideology_factor = 0.3	Percentual.		1.0
request_lease_tension	Necessary world tension for the country to request lend-lease.	request_lease_tension = 0.3	Percentual.		1.9
annex_cost_factor	Modifies the cost in victory points to annex states in peace deals.	annex_cost_factor = 0.1	Percentual.		1.0
puppet_cost_factor	Modifies the cost in victory points per state to puppet countries in peace deals.	puppet_cost_factor = 0.1	Percentual.		1.0
send_volunteer_divisions_required	Changes the number of divisions needed to send volunteers.	send_volunteer_divisions_required = -0.3	Percentual.		1.0
send_volunteer_factor	Changes the number of divisions the country can send as volunteers by a percentage.	send_volunteer_factor = 0.3	Percentual.		1.0
send_volunteer_size	Changes the number of divisions the country can send as volunteers.	send_volunteer_size = 5	Flat.		1.0
send_volunteers_tension	Changes the world tension necessary for the country to send volunteers.	send_volunteers_tension = -0.1	Flat.		1.0
air_volunteer_cap	Changes the amount of airforce you can send as volunteers.	air_volunteer_cap = 100	Flat.		1.5
embargo_threshold_factor	Changes the necessary world tension level in order to be able to embargo a country.	embargo_threshold_factor = 0.2	Percentual.		1.12
embargo_cost_factor	Changes the cost in political power to send an embargo.	embargo_cost_factor = 0.3	Percentual.		1.12

Name	Effects	Examples	Modifier type	Notes	Version added
autonomy_gain	Daily gain of autonomy.	autonomy_gain = 0.5	Flat.	A positive number increase total autonomy, meaning the SUBJECT can be free faster. A negative number decrease total autonomy, meaning the OVERLORD can annex the manpower-slaves faster.	1.3
autonomy_gain_global_factor	Modifies all gain of autonomy by a subject.	autonomy_gain_global_factor = 0.5	Percentual.		1.4
subjects_autonomy_gain	Daily gain of autonomy in our subjects.	subjects_autonomy_gain = 0.5	Flat.		1.3
autonomy_gain_ll_to_overlord	Modifies gain of autonomy from lend-leasing to the overworld.	autonomy_gain_ll_to_overlord = 0.5	Flat.		1.3
autonomy_gain_ll_to_overlord_factor	Modifies gain of autonomy from lend-leasing to the overlord by a percentage.	autonomy_gain_ll_to_overlord_factor = 0.5	Percentual.		1.3
autonomy_gain_ll_to_subject	Modifies loss of autonomy from lend-leasing to the subject.	autonomy_gain_ll_to_subject = 0.5	Flat.		1.3
autonomy_gain_ll_to_subject_factor	Modifies loss of autonomy from lend-leasing to the subject by a percentage.	autonomy_gain_ll_to_subject_factor = 0.5	Percentual.		1.3
autonomy_gain_trade	Modifies gain of autonomy from the overlord trading with the subject.	autonomy_gain_trade = 0.5	Flat.		1.3
autonomy_gain_trade_factor	Modifies gain of autonomy from the overlord trading with the subject by a percentage.	autonomy_gain_trade_factor = 0.5	Percentual.		1.3
autonomy_gain_warscore	Modifies gain of autonomy from the subject gaining warscore.	autonomy_gain_warscore = 0.5	Flat.		1.3
autonomy_gain_warscore_factor	Modifies gain of autonomy from the subject gaining warscore by a percentage.	autonomy_gain_warscore_factor = 0.5	Percentual.		1.3
autonomy_manpower_share	Modifies the amount of manpower the overlord can use from the subject.	autonomy_manpower_share = 0.5	Percentual.		1.3
can_master_build_for_us	Makes the overlord be able to build in the subject.	can_master_build_for_us = 1	Boolean (only 1).		1.3
cic_to_overlord_factor	Modifies the amount of the subject's civilian industry that goes to the overlord.	cic_to_overlord_factor = 0.3	Percentual.		1.3
mic_to_overlord_factor	Modifies the amount of the subject's military industry that goes to the overlord.	mic_to_overlord_factor = 0.3	Percentual.		1.3
extra_trade_to_overlord_factor	Modifies the amount of the subject's resources that the overlord can receive via trade.	extra_trade_to_overlord_factor = 0.3	Percentual.		1.3
license_subject_master_purchase_cost	Modifies the cost of licensed production from the overlord.	license_subject_master_purchase_cost = 0.3	Percentual.		1.4
master_build_autonomy_factor	Modifies loss of autonomy from the overlord building in subject's states by a percentage.	master_build_autonomy_factor = 0.3	Percentual.		1.3
master_ideology_drift	Changes daily gain of the overlord's ideology in the country.	master_ideology_drift = 0.03	Flat.		1.6
overlord_trade_cost_factor	Modifies the cost of trade between the overlord and the subject in civilian factories.	overlord_trade_cost_factor = -0.3	Percentual.		1.3

Name	Effects	Examples	Modifier type	Version added
dockyard_donations	Amount of dockyards donated.	dockyard_donations = 2	Flat.	1.6
industrial_factory_donations	Amount of civilian factories donated.	industrial_factory_donations = 2	Flat.	1.6
military_factory_donations	Amount of military factories donated.	military_factory_donations = 2	Flat.	1.6
exile_manpower_factor	Amount of manpower given to the host country.	exile_manpower_factor = 0.5	Percentual.	1.6
exiled_government_weekly_manpower	Amount of weekly manpower given to the host country.	exiled_government_weekly_manpower = 100	Percentual.	1.11
legitimacy_daily	Changes the amount of legitimacy gained daily.	legitimacy_daily = 1	Flat.	1.6
legitimacy_gain_factor	Changes the amount of legitimacy gained daily by a percentage.	legitimacy_gain_factor = 1	Percentual.	1.9

Name	Effects	Examples	Modifier type	Notes	Version added
equipment_capture	Changes the combat equipment capture ratio.	equipment_capture = 0.2	Flat.		1.0
equipment_capture_factor	Modifies the combat equipment capture ratio.	equipment_capture_factor = 0.5	Percentual.		1.0
equipment_conversion_speed	Changes the speed at which equipment is converted.	equipment_conversion_speed = 0.5	Percentual.		1.0
equipment_upgrade_xp_cost	Changes the experience cost to upgrade military equipment.	equipment_upgrade_xp_cost = 0.5	Percentual.		1.0
license_purchase_cost	Changes the cost of licensed equipment by a percentage.	license_purchase_cost = 0.5	Percentual.	Can be used as a targeted modifier.	1.4
license_purchase_cost_factor	Changes the cost of licensed equipment by a percentage.	license_purchase_cost_factor = 0.5	Percentual.	Allowed equipment types are anti_tank_eq, artillery_eq, infantry_eq, and light_tank_eq. Can be used as a targeted modifier.	1.4
license_purchase_cost_factor	Changes the cost of licensed equipment by a percentage.	license_purchase_cost_factor = 0.5	Percentual.	Allowed categories are air, armor, infantry, and naval. Can be used as a targeted modifier.	1.4
license_tech_difference_speed	Changes the production penalty of licensed equipment by tech difference by a percentage.	license_tech_difference_speed = 0.5	Percentual.	Also allows specifying category as license_<category>_tech_difference_speed_factor. Allowed categories are anti_tank_eq, artillery_eq, infantry_eq, and light_tank_eq. That's added in 1.6. Can be used as a targeted modifier.	1.4
license_production_speed	Changes the production speed of licensed equipment by a percentage.	license_production_speed = 0.5	Percentual.	Can be used as a targeted modifier.	1.4
license_<category>_production_speed_factor	Changes the production speed of licensed equipment by a percentage.	license_infantry_eq_production_speed_factor = 0.5	Percentual.	Allowed categories are anti_tank_eq, artillery_eq, infantry_eq, and light_tank_eq. Can be used as a targeted modifier.	1.6
production_cost_max_<ship type>	Modifies the maximum cost of the ship type.	production_cost_max_ship_hull_light = 0.3	Percentual.	Allowed ship types in base game: convoy, ship_hull_carrier, ship_hull_cruiser, ship_hull_heavy, ship_hull_light, ship_hull_submarine	1.6
production_factory_efficiency_gain_factor	Production efficiency growth.	production_factory_efficiency_gain_factor = 0.5	Percentual.		1.0
production_factory_max_efficiency_factor	Production efficiency cap.	production_factory_max_efficiency_factor = 0.5	Percentual.		1.0
production_factory_start_efficiency_factor	Production efficiency base.	production_factory_start_efficiency_factor = 0.5	Percentual.		1.0
line_change_production_efficiency_factor	Production efficiency retention.	line_change_production_efficiency_factor = 0.3	Percentual.		1.0
production_lack_of_resource_penalty_factor	Lack of resources penalty.	production_lack_of_resource_penalty_factor = 0.5	Percentual.		1.0
floating_harbor_duration	Modifies the duration of floating harbours.	floating_harbor_duration = 2	Flat.		1.11
floating_harbor_range	Modifies the range of floating harbours.	floating_harbor_range = 2	Flat.		1.11
floating_harbor_supply	Modifies the supply of floating harbours.	floating_harbor_supply = 2	Flat.		1.11
railway_gun_bombardment_factor	Modifies the bombardment of railway guns.	railway_gun_bombardment_factor = 0.3	Percentual.		1.11

Name	Effects	Examples	Modifier type	Notes	Version added
base_fuel_gain	Changes base daily gain of fuel.	base_fuel_gain = 100	Flat.		1.6
base_fuel_gain_factor	Changes base daily gain of fuel by a percentage.	base_fuel_gain_factor = 0.5	Percentual.		1.6
fuel_cost	Changes daily cost of fuel.	fuel_cost = 100	Flat.		1.6
fuel_gain	Changes daily gain of fuel from our controlled oil.	fuel_gain = 100	Flat.		1.6
fuel_gain_factor	Changes daily gain of fuel from our controlled oil by a percentage.	fuel_gain_factor = 100	Percentual.		1.6
fuel_gain_from_states	Changes daily gain of fuel.	fuel_gain_from_states = 100	Flat.	Refineries use this modifier.	1.6
fuel_gain_factor_from_states	Changes daily gain of fuel by a percentage.	fuel_gain_factor_from_states = 0.5	Percentual.	Modifies fuel gain from refineries.	1.6
max_fuel	Changes maximum amount of fuel you can have.	max_fuel = 100	Flat.		1.6
max_fuel_factor	Changes maximum amount of fuel you can have by a percentage.	max_fuel_factor = 0.3	Percentual.		1.6
army_fuel_capacity_factor	Modifies how much fuel a single unit can store before running out.	army_fuel_capacity_factor = 0.3	Percentual.		1.6
army_fuel_consumption_factor	Modifies the rate at which the army consumes fuel.	army_fuel_consumption_factor = 0.3	Percentual.		1.6
air_fuel_consumption_factor	Modifies the rate at which the airforce consumes fuel.	air_fuel_consumption_factor = 0.5	Percentual.		1.6
navy_fuel_consumption_factor	Modifies the rate at which the navy consumes fuel.	navy_fuel_consumption_factor = 0.3	Percentual.		1.6
supply_factor	Modifies the total amount of supply the military has.	supply_factor = 0.3	Percentual.		1.11
supply_combat_penalties_on_core_factor	Modifies the penalty given by low supply when the army is on a core state.	supply_combat_penalties_on_core_factor = 0.3	Percentual.		1.11
supply_consumption_factor	Modifies the rate at which army consumes supply.	supply_consumption_factor = 0.3	Percentual.		1.0
no_supply_grace	Modifies the grace period for units without supply.	no_supply_grace = 120	Flat.		1.0
out_of_supply_factor	Reduces the penalty that units take when they run out of supplies.	out_of_supply_factor = 0.2	Percentual.		1.0
attrition	Modifies the army's attrition.	attrition = 0.3	Percentual.	Can also be used in states or provinces.	1.0
unit_upkeep_attrition_factor	Modifies the unit upkeep.	unit_upkeep_attrition_factor = 0.3	Percentual.		1.0
naval_attrition	Modifies attrition suffered by naval units.	naval_attrition = 0.3	Percentual.		1.6
heat_attrition	Changes the attrition due to heat.	heat_attrition = 0.5	Flat.		1.3
heat_attrition_factor	Changes the attrition due to heat by a percentage.	heat_attrition_factor = 0.5	Percentual.		1.3
winter_attrition	Changes the attrition due to winter.	winter_attrition = 0.5	Flat.		1.3
winter_attrition_factor	Changes the attrition due to winter by a percentage.	winter_attrition_factor = 0.5	Percentual.		1.3
extra_marine_supply_grace	Changes the supply grace given to marines.	extra_marine_supply_grace = 96	Flat.		1.0
extra_paratrooper_supply_grace	Changes the supply grace given to paratroopers.	extra_paratrooper_supply_grace = 96	Flat.		1.0
special_forces_no_supply_grace	Changes the supply grace period for special forces.	special_forces_no_supply_grace = 120	Flat.		1.0
special_forces_out_of_supply_factor	Changes the penalty for special forces out of supply.	special_forces_out_of_supply_factor = 0.3	Percentual.		1.0
truck_attrition	Changes the attrition supply trucks suffer from.	truck_attrition = 3	Flat.		1.11
truck_attrition_factor	Modifies the attrition supply trucks suffer from.	truck_attrition_factor = 0.3	Percentual.		1.11

Name	Effects	Examples	Modifier type	Notes	Version added
production_speed_buildings_factor	Changes the construction speed of all buildings.	production_speed_buildings_factor = 0.5	Percentual.		1.0
production_speed_<building>_factor	Changes the construction speed of a specific building.	production_speed_industrial_complex_factor = 0.5	Percentual.		1.0
production_cost_<building>_factor	Changes the base cost of a specific building.	production_cost_industrial_complex_factor = -0.1	Percentual.	Localization is missing and must be added yourself.	Unknown
civilian_factory_use	Uses the specified amount of civilian factory as a special project.	civilian_factory_use = 3	Flat.		1.5
consumer_goods_factor	Modifies the percentage of factories used for consumer goods.	consumer_goods_factor = 0.1	Multiplicative.	The modifier adds multiplicatively. For example, `consumer_goods_factor = 0.5` and `consumer_goods_factor = -0.5` will, in total, multiply the consumer goods value by [math]\displaystyle{ (1 - 0.5)(1 + 0.5) = 0.5\cdot 1.5 = 0.75 }[/math].	1.0
consumer_goods_expected_value	Sets the baseline percentage of expected consumer goods.	consumer_goods_expected_value = 0.1	Flat.	Only updates when the economy law of the country changes.	1.13
conversion_cost_civ_to_mil_factor	Changes the cost to convert civilian factories to military factories.	conversion_cost_civ_to_mil_factor = 0.4	Percentual.		1.5
conversion_cost_mil_to_civ_factor	Changes the cost to convert military factories to civilian factories.	conversion_cost_mil_to_civ_factor = 0.4	Percentual.		1.5
global_building_slots	Changes amount of building slots in our every state.	global_building_slots = 1	Flat.		1.0
global_building_slots_factor	Changes amount of building slots in our every state by a percentage.	global_building_slots_factor = 0.3	Percentual.		1.0
industrial_capacity_dockyard	Dockyard output.	industrial_capacity_dockyard = 0.3	Percentual.		1.3.3
industrial_capacity_factory	Military factory output.	industrial_capacity_factory = 0.3	Percentual.		1.0
industry_air_damage_factor	Amount of damage our factories receive from air bombings.	industry_air_damage_factor = 0.3	Percentual.		1.0
industry_free_repair_factor	Changes the speed at which buildings repair themselves without factories assigned.	industry_free_repair_factor = 0.3	Percentual.		1.0
industry_repair_factor	Changes the speed at which buildings are repaired.	industry_repair_factor = 0.3	Percentual.		1.0
production_oil_factor	Synthetic oil gain.	production_oil_factor = 0.5	Percentual.		1.0
repair_speed_<building>_factor	Changes the repair speed of a specific building.	repair_speed_arms_factory_factor = 0.5	Percentual.		1.0
supply_node_range	Increases the effective range of supply nodes.	supply_node_range = 0.1	Percentual.		1.11
static_anti_air_damage_factor	Modifies the damage done to planes by the anti-air buildings.	static_anti_air_damage_factor = 0.1	Percentual.		1.0
static_anti_air_hit_chance_factor	Modifies the chance for the anti-air buildings to hit enemy planes.	static_anti_air_hit_chance_factor = 0.1	Percentual.		1.0
tech_air_damage_factor	Modifies the damage done to the country's planes by enemy anti-air buildings.	tech_air_damage_factor = 0.1	Percentual.		1.0
tech_air_damage_factor	Modifies the damage done to the country's planes by enemy anti-air buildings.	tech_air_damage_factor = 0.1	Percentual.		1.0
cic_construction_boost	Modifies the base construction speed from civilian factories.	cic_construction_boost = 0.1	Flat.		1.13
cic_construction_boost_factor	Modifies the modifier to the base construction speed from civilian factories.	cic_construction_boost_factor = 0.1	Percentual.		1.13
land_bunker_effectiveness_factor	Modifies the effectiveness of land forts in defence.	land_bunker_effectiveness_factor = 0.1	Percentual.		1.13
coastal_bunker_effectiveness_factor	Modifies the effectiveness of coastal forts in defence.	coastal_bunker_effectiveness_factor = 0.1	Percentual.		1.13

Name	Effects	Examples	Modifier type	Notes	Version added
compliance_growth_on_our_occupied_states	Changes the compliance growth speed on the country's controlled states.	compliance_growth_on_our_occupied_states = 0.5	Percentual.		1.9
no_compliance_gain	Disables the compliance gain on our controlled states.	no_compliance_gain = 1	Boolean (only 1).	Can also be used in state scope.	1.9
required_garrison_factor	Changes the required garrison in our occupied states.	required_garrison_factor = 0.5	Percentual.	Can also be used in state scope.	1.9
resistance_activity	Changes the chance for resistance activity to occur on our occupied states.	resistance_activity = 0.5	Percentual.		1.9
resistance_damage_to_garrison_on_our_occupied_states	Changes the resistance damage to the garrison in our occupied states.	resistance_damage_to_garrison_on_our_occupied_states = 0.5	Percentual.		1.9
resistance_decay_on_our_occupied_states	Changes the resistance decay in our occupied states.	resistance_decay_on_our_occupied_states = 0.5	Percentual.		1.9
resistance_growth_on_our_occupied_states	Changes the resistance growth speed in our occupied states.	resistance_growth_on_our_occupied_states = 0.5	Percentual.		1.9
resistance_target_on_our_occupied_states	Changes the resistance target in our occupied states.	resistance_target_on_our_occupied_states = 0.5	Percentual.		1.9
resistance_target	Changes the resistance target in foreign states occupied by us	resistance_target = 0.5	Percentual		1.9

Name	Effects	Examples	Modifier type	Notes	Version added
agency_upgrade_time	Changes the time it takes to upgrade the agency	agency_upgrade_time = 0.5	Percentual.		1.9
decryption	Changes the decription capability of the country.	decryption = 1	Flat.	Only works with the 抵抗运动 DLC disabled.	1.0
decryption_factor	Changes the decription capability of the country by a percentage.	decryption_factor = 0.5	Percentual.	Only works with the 抵抗运动 DLC disabled.	1.0
encryption	Changes the encryption capability of the country.	encryption = 1	Flat.	Only works with the 抵抗运动 DLC disabled.	1.0
encryption_factor	Changes the encryption capability of the country by a percentage.	encryption_factor = 0.5	Percentual.	Only works with the 抵抗运动 DLC disabled.	1.0
<type>_intel_decryption_bonus	Adds a cipher bonus to the specified intel.	civilian_intel_decryption_bonus = 0.5	Percentual.	Types are: airforce, army, civilian, navy.	1.9
<type>_intel_factor	Modifies the intelligence you receive of the specified type.	navy_intel_factor = 0.5	Percentual.	Types are: airforce, army, civilian, navy.	1.9
<type>_intel_to_others	Changes the amount of intel other countries will receive of the specified type.	civilian_intel_to_others = 0.5	Percentual.	Types are: airforce, army, civilian, navy.	1.9
female_random_operative_chance	Changes the chance for a randomly-generated operative to be female.	female_random_operative_chance = 0.3	Percentual.		1.9.1
foreign_subversive_activites	Changes efficiency of foreign subversive activities.	foreign_subversive_activites = 0.3	Percentual.		1.9
intel_network_gain	Changes gain of intel network strength.	intel_network_gain = 1	Flat.	Can also be used in state scope.	1.9
intel_network_gain_factor	Changes gain of intel network strength by a percentage.	intel_network_gain_factor = 0.5	Percentual.	Can also be used in state scope.	1.9
subversive_activites_upkeep	Changes the cost of subversive activities.	subversive_activites_upkeep = 0.5	Percentual.		1.0
operation_cost	Changes the cost of operations.	operation_cost = 0.5	Percentual.	Dynamically created by operations with the `cost_modifiers = { ... }` block. This one is used by each base game operation to modify the operation cost.	1.9
operation_outcome	Changes the efficiency of operations.	operation_outcome = 0.5	Percentual.	Dynamically created by operations with the `outcome_modifiers = { ... }` block. This one is used by each base game operation to modify the operation's outcome chance.	1.9
operation_risk	Changes the risk of operations.	operation_risk = 0.5	Percentual.	Dynamically created by operations with the `risk_modifiers = { ... }` block. This one is used by each base game operation to modify the operation risk.	1.9
<operation>_cost	Changes the cost of the specified operation.	operation_infiltrate_cost = 0.5	Percentual.	Operations are defined in /Hearts of Iron IV/common/operations/*.txt. Dynamically created by operations with the `cost_modifiers = { ... }` block.	1.9
<operation>_outcome	Changes the efficiency of the specified operation.	operation_coup_government_outcome = 0.5	Percentual.	Operations are defined in /Hearts of Iron IV/common/operations/*.txt. Dynamically created by operations with the `outcome_modifiers = { ... }` block. Note that target_sabotage uses target_sabotage_factor rather than target_sabotage_outcome.	1.9
<operation>_risk	Changes the risk of the specified operation.	operation_make_resistance_contacts_risk = 0.5	Percentual.	Operations are defined in /Hearts of Iron IV/common/operations/*.txt. Dynamically created by operations with the `risk_modifiers = { ... }` block.	1.9
<mission>_factor	Modifies the effect of the specified mission.	boost_ideology_mission_factor = 0.5	Percentual.	Types are: boost_ideology_mission, boost_resistance, control_trade_mission, diplomatic_pressure_mission, propaganda_mission, root_out_resistance_effectiveness.	1.9
commando_trait_chance_factor	Modifies the chance for an operative to get the commando trait when hired.	commando_trait_chance_factor = 0.5	Percentual.		1.9
crypto_department_enabled	Enables the crypto department.	crypto_department_enabled = 1	Boolean (only 1).		1.9
crypto_strength	Modifies the cryptology level.	crypto_strength = 1	Flat.	抵抗运动 DLC enabled.	1.9
decryption_power	Modifies the decryption power.	decryption_power = 1	Flat.	抵抗运动 DLC enabled.	1.9
decryption_power_factor	Modifies the decryption power by a percentage.	decryption_power_factor = 0.3	Percentual.	抵抗运动 DLC enabled.	1.9
defense_impact_on_blueprint_stealing	Modifies the impact of enemy defense on the blueprint stealing operation.	defense_impact_on_blueprint_stealing = 0.3	Percentual.		1.9
intel_from_combat_factor	Modifies the intelligence gained from combat.	intel_from_combat_factor = 0.3	Percentual.		1.9
intel_from_operatives_factor	Modifies the intelligence gained from operatives and infiltrated assets.	intel_from_operatives_factor = 0.3	Percentual.		1.9
intel_network_gain	Modifies the intelligence network gain.	intel_network_gain = 0.3	Flat.		1.9
intel_network_gain_factor	Modifies the intelligence network gain by a percentage.	intel_network_gain_factor = 0.3	Percentual.		1.9
intelligence_agency_defense	Modifies the counter intelligence.	intelligence_agency_defense = 0.3	Flat.		1.9
root_out_resistance_effectiveness_factor	Modifies the effectiveness of rooting out resistance.	root_out_resistance_effectiveness_factor = 0.3	Percentual.		1.9

Name	Effects	Examples	Modifier type	Notes	Version added
own_operative_capture_chance_factor	Changes the chance for our operatives to be captured.	own_operative_capture_chance_factor = 0.5	Percentual.		1.9
own_operative_detection_chance	Changes the chance for our operatives to be detected.	own_operative_detection_chance = 10	Flat.		1.9
own_operative_detection_chance_factor	Changes the chance for our operatives to be detected by a percentage.	own_operative_detection_chance_factor = 0.5	Percentual.		1.9
own_operative_forced_into_hiding_time_factor	Changes the chance for our operatives to be forced into hiding by a percentage.	own_operative_forced_into_hiding_time_factor = 0.5	Percentual.		1.9
own_operative_harmed_time_factor	Changes the chance for our operatives to be harmed by a percentage.	own_operative_harmed_time_factor = 0.5	Percentual.		1.9
own_operative_intel_extraction_rate	Changes the rate at which our operatives extract enemy intel.	own_operative_intel_extraction_rate = 0.5	Percentual.		1.9
enemy_operative_capture_chance_factor	Changes the chance for an enemy operative to be captured.	enemy_operative_capture_chance_factor = 0.5	Percentual.		1.9
enemy_operative_detection_chance	Changes the chance for an enemy operative to be detected.	enemy_operative_detection_chance = 10	Flat.		1.9
enemy_operative_detection_chance_factor	Changes the chance for an enemy operative to be detected by a percentage.	enemy_operative_detection_chance_factor = 0.5	Percentual.		1.9
enemy_operative_forced_into_hiding_time_factor	Changes the chance for an enemy operative to be forced into hiding by a percentage.	enemy_operative_forced_into_hiding_time_factor = 0.5	Percentual.		1.9
enemy_operative_harmed_time_factor	Changes the chance for an enemy operative to be harmed by a percentage.	enemy_operative_harmed_time_factor = 0.5	Percentual.		1.9
enemy_operative_intel_extraction_rate	Changes the rate at which the enemy operatives extract our intel.	enemy_operative_intel_extraction_rate = 0.5	Percentual.		1.9
enemy_spy_negative_status_factor	Changes the chance an enemy spy can receive a negative status.	enemy_spy_negative_status_factor = 0.5	Percentual.		1.9
enemy_operative_recruitment_chance	Modifies the chance to recruit an enemy operative.	enemy_operative_recruitment_chance = 0.3	Percentual.	Cannot be used in operative scope.	1.9
new_operative_slot_bonus	Modifies the operative recruitment choices.	new_operative_slot_bonus = 1	Flat.	Cannot be used in operative scope.	1.9
occupied_operative_recruitment_chance	Modifies the chance to get an operative from occupied territory.	occupied_operative_recruitment_chance = 0.3	Percentual.	Cannot be used in operative scope.	1.9
operative_death_on_capture_chance	Modifies the chance for the country's operative to die on being captured.	operative_death_on_capture_chance = 0.3	Percentual.	Cannot be used in operative scope.	1.9
operative_slot	Modifies the amount of operative slots.	operative_slot = 1	Flat.	Cannot be used in operative scope.	1.9

Name	Effects	Examples	Modifier type	Notes	Version added
ai_badass_factor	AI's threat perception.	ai_badass_factor = 0.5	Percentual.		1.0
ai_call_ally_desire_factor	Chance for AI to call allies.	ai_call_ally_desire_factor = 0.5	Percentual.		1.0
ai_desired_divisions_factor	The amount of divisions AI seeks to produce.	ai_desired_divisions_factor = 0.5	Percentual.		1.0
ai_focus_aggressive_factor	AI's focus on offense.	ai_focus_aggressive_factor = 0.5	Percentual.		1.0
ai_focus_defense_factor	AI's focus on defense.	ai_focus_defense_factor = 0.5	Percentual.		1.0
ai_focus_aviation_factor	AI's focus on aviation.	ai_focus_aviation_factor = 0.5	Percentual.		1.0
ai_focus_military_advancements_factor	AI's focus on advanced military technologies.	ai_focus_military_advancements_factor = 0.5	Percentual.		1.0
ai_focus_military_equipment_factor	AI's focus on advanced military equipment.	ai_focus_military_equipment_factor = 0.5	Percentual.		1.0
ai_focus_naval_air_factor	AI's focus on building naval airforce.	ai_focus_naval_air_factor = 0.5	Percentual.		1.0
ai_focus_naval_factor	AI's focus on building a navy.	ai_focus_naval_factor = 0.5	Percentual.		1.0
ai_focus_peaceful_factor	AI's focus on peaceful research and policies.	ai_focus_peaceful_factor = 0.5	Percentual.		1.0
ai_focus_war_production_factor	AI's focus on wartime production.	ai_focus_war_production_factor = 0.5	Percentual.		1.0
ai_get_ally_desire_factor	AI's desire to be in or expand a faction.	ai_get_ally_desire_factor = 0.5	Percentual.		1.0
ai_join_ally_desire_factor	AI's desire to join the wars led by allies.	ai_join_ally_desire_factor = 0.5	Percentual.		1.0
ai_license_acceptance	AI's chance to agree licensing equipment.	ai_license_acceptance = 0.5	Percentual.	Can be used as a targeted modifier.	1.4

Name	Effects	Examples	Modifier type	Notes	Version added
command_power_gain	Changes the daily gain of command power.	command_power_gain = 0.5	Flat.		1.5
command_power_gain_mult	Changes the daily gain of command power by a percentage.	command_power_gain_mult = 0.5	Percentual.		1.5
conscription	Changes the recruitable percentage of the total population.	conscription = 0.02	Flat.		1.0
conscription_factor	Changes the recruitable percentage of the total population by a percent.	conscription_factor = 0.3	Percentual.		1.0
experience_gain_army	Modifies the daily gain of army experience.	experience_gain_army = 0.5	Flat.		1.0
experience_gain_army_factor	Modifies the gain of army experience by a percentage.	experience_gain_army_factor = 0.5	Percentual.		1.0
experience_gain_navy	Modifies the daily gain of naval experience.	experience_gain_navy = 0.02	Flat.		1.0
experience_gain_navy_factor	Modifies the gain of naval experience by a percentage.	experience_gain_navy_factor = 0.3	Percentual.		1.0
experience_gain_air	Modifies the daily gain of air experience.	experience_gain_air = 0.05	Flat.		1.0
experience_gain_air_factor	Modifies the daily gain of air experience by a percentage.	experience_gain_air_factor = 0.5	Percentual.		1.0
land_equipment_upgrade_xp_cost	Changes the experience cost to upgrade land army equipment.	land_equipment_upgrade_xp_cost = 0.3	Percentual.		1.0
land_reinforce_rate	Changes the rate at which reinforcements to divisions arrive.	land_reinforce_rate = 0.3	Percentual.		1.0
max_command_power	Changes maximum command power.	max_command_power = 20	Flat.		1.5
max_command_power_mult	Changes maximum command power by a percentage.	max_command_power_mult = 0.3	Percentual.		1.5
weekly_manpower	Amount of manpower gained each week.	weekly_manpower = 1000	Flat.		1.6
naval_equipment_upgrade_xp_cost	Changes the naval experience cost to upgrade equipment.	naval_equipment_upgrade_xp_cost = 0.3	Percentual.		1.0
refit_ic_cost	The IC cost to refit naval equipment.	refit_ic_cost = 20	Flat.		1.6
refit_speed	The speed at which naval equipment is refitted.	refit_speed = 0.5	Percentual.		1.6
air_equipment_upgrade_xp_cost	Changes the air experience cost to upgrade equipment.	air_equipment_upgrade_xp_cost = 0.5	Percentual.		1.0
training_time_factor	Modifies the training time for both army and navy.	training_time_factor = 0.3	Percentual.		1.0
minimum_training_level	Changes training level necessary for the unit to deploy.	minimum_training_level = 0.3	Percentual.		1.0
max_training	Modifies the required experience to achieve full training.	max_training = -0.3	Percentual.		1.0
training_time_army_factor	Modifies the training time for the army.	training_time_army_factor = 0.3	Percentual.		1.0
special_forces_training_time_factor	Changes the time it takes to train special forces.	special_forces_training_time_factor = 0.3	Percentual.		1.0
<land/air/naval>_doctrine_cost_factor	Changes the cost of buying a new doctrine of the specified type.	land_doctrine_cost_factor = -0.05	Percentual.		1.11
<doctrine category>_cost_factor	Modifies the cost of buying a new doctrine of the specified category.	cat_mobile_warfare_cost_factor = 0.3	Percentual.	Doctrines are defined in /Hearts of Iron IV/common/technologies/*.txt.	1.11
choose_preferred_tactics_cost	Changes the cost to choose a preferred tactic.	choose_preferred_tactics_cost = 5	Flat.		1.11
command_abilities_cost_factor	Changes the cost to choose a command ability.	command_abilities_cost_factor = -0.3	Percentual.		1.11
transport_capacity	Modifies how many convoys units require to be transported over sea.	transport_capacity = 0.3	Percentual.		1.0
paratroopers_special_forces_contribution_factor	Modifies how much paratroopers contribute to the limit of special forces on a template.	paratroopers_special_forces_contribution_factor = 0.3	Percentual.		1.13
marines_special_forces_contribution_factor	Modifies how much marines contribute to the limit of special forces on a template.	marines_special_forces_contribution_factor = 0.3	Percentual.		1.13
mountaineers_special_forces_contribution_factor	Modifies how much mountaineers contribute to the limit of special forces on a template.	mountaineers_special_forces_contribution_factor = 0.3	Percentual.		1.13
special_forces_cap_flat	Modifies how many special forces sub-units can be put into a single template.	special_forces_cap_flat = 10	Percentual.		1.13
additional_brigade_column_size	Changes the amount of maximum unlocked slots on each brigade column in division templates.	additional_brigade_column_size = 1	Flat.		1.13
unit_<unit type>_design_cost_factor	Modifies how much experience it costs to add a brigade of the specified type to a template.	unit_artillery_brigade_design_cost_factor = 0.3	Percentual.	Brigades are defined in /Hearts of Iron IV/common/units/*.txt	1.11
<equipment archetype>_design_cost_factor	Modifies how much experience it costs to add upgrades or modules to a specified equipment archetype.	strat_bomber_equipment_design_cost_factor = 0.3 ship_hull_heavy_design_cost_factor = -0.2	Percentual.	Equipment archetypes are defined in /Hearts of Iron IV/common/units/equipment/*.txt	1.11
module_<module type>_design_cost_factor	Modifies how much experience it costs to add a module of the specified type to equipment.	module_tank_torsion_bar_suspension_design_cost_factor = 0.3	Percentual.	Modules are defined in /Hearts of Iron IV/common/units/equipment/modules/*.txt	1.11

Name	Effects	Examples	Modifier type	Version added
military_industrial_organization_research_bonus	Modifies the research bonus granted by MIOs.	military_industrial_organization_research_bonus = 0.3	Percentual.	1.13
military_industrial_organization_design_team_assign_cost	Modifies the political power cost to assign a design team.	military_industrial_organization_design_team_assign_cost = 30	Flat.	1.13
military_industrial_organization_design_team_change_cost	Modifies the political power cost to change a design team.	military_industrial_organization_design_team_change_cost = 20	Flat.	1.13
military_industrial_organization_industrial_manufacturer_assign_cost	Modifies the political power cost to assign an industrial manufacturer.	military_industrial_organization_industrial_manufacturer_assign_cost = 10	Flat.	1.13
military_industrial_organization_task_capacity	Modifies the amount of tasks possible to assign to the MIO.	military_industrial_organization_task_capacity = 2	Flat.	1.13
military_industrial_organization_size_up_requirement	Modifies the requirement to size up a MIO.	military_industrial_organization_size_up_requirement = 2	Flat.	1.13
military_industrial_organization_funds_gain	Modifies the amount of funds gained by the MIO.	military_industrial_organization_funds_gain = 0.3	Percentual.	1.13
military_industrial_organization_policy_cost	Modifies the political power cost to assign a MIO policy.	military_industrial_organization_policy_cost = 20	Flat.	1.13
military_industrial_organization_policy_cooldown	Modifies the cooldown between how often it's possible to change policies.	military_industrial_organization_policy_cooldown = 5	Flat.	1.13

Name	Effects	Examples	Modifier type	Notes	Version added
female_random_army_leader_chance	Changes the chance for a randomly-generated army leader to be female.	female_random_army_leader_chance = 0.3	Percentual.		1.9.1
assign_army_leader_cp_cost	Modifies the cost to assign an army leader to an army.	assign_army_leader_cp_cost = -5	Flat.		1.11
army_leader_cost_factor	The cost in political power to recruit an unit leader for the land army.	army_leader_cost_factor = 0.5	Percentual.		1.3
army_leader_start_level	Bonus to the starting level of generic unit leaders.	army_leader_start_level = 1	Flat.		1.5
army_leader_start_attack_level	Bonus to the starting level of attack in generic unit leaders.	army_leader_start_attack_level = 1	Flat.		1.5
army_leader_start_defense_level	Bonus to the starting level of defense in generic unit leaders.	army_leader_start_defense_level = 1	Flat.		1.5
army_leader_start_logistics_level	Bonus to the starting level of logistics in generic unit leaders.	army_leader_start_logistics_level = 1	Flat.		1.5
army_leader_start_planning_level	Bonus to the starting level of planning in generic unit leaders.	army_leader_start_planning_level = 1	Flat.		1.5
military_leader_cost_factor	The cost in political power to recruit an unit leader.	military_leader_cost_factor = 0.5	Percentual.		1.3
female_random_admiral_chance	Changes the chance for a randomly-generated admiral to be female.	female_random_admiral_chance = 0.3	Percentual.		1.9.1
assign_navy_leader_cp_cost	Modifies the cost to assign a navy leader to a navy.	assign_navy_leader_cp_cost = -5	Flat.		1.11
navy_leader_cost_factor	The cost in political power to recruit an unit leader for the land navy.	navy_leader_cost_factor = 0.5	Percentual.		1.3
navy_leader_start_level	Bonus to the starting level of generic unit leaders.	navy_leader_start_level = 1	Flat.		1.9
navy_leader_start_attack_level	Bonus to the starting level of attack in generic unit leaders.	navy_leader_start_attack_level = 1	Flat.		1.9
navy_leader_start_coordination_level	Bonus to the starting level of coordination in generic unit leaders.	navy_leader_start_coordination_level = 1	Flat.		1.9
navy_leader_start_defense_level	Bonus to the starting level of defense in generic unit leaders.	navy_leader_start_defense_level = 1	Flat.		1.9
navy_leader_start_maneuvering_level	Bonus to the starting level of maneuvering in generic unit leaders.	navy_leader_start_maneuvering_level = 1	Flat.		1.9
grant_medal_cost_factor	Changes the cost in command power to grant a medal to a division commander.	grant_medal_cost_factor = 0.2	Percentual.		1.12
field_officer_promotion_penalty	Changes the experience penalty applied to the divisions when a commander is promoted to a field marshal.	field_officer_promotion_penalty = 0.2	Percentual.		1.12
female_divisional_commander_chance	Changes the chance to get a female divisional commander.	female_divisional_commander_chance = 0.2	Flat.	If no generic female portraits are defined within /Hearts of Iron IV/portraits/*.txt files, there will be a silhouette.	1.12

Name	Effects	Examples	Modifier type	Notes	Version added
offence	Modifies the attack value of our military, navy, and airforce.	offence = 0.5	Percentual.		1.0
defence	Modifies the defence value of our military, navy, and airforce.	defence = 0.5	Percentual.		1.0
<Tactic>_preferred_weight_factor	Modifies the chance for a commander to choose the specified tactic.	tactic_ambush_preferred_weight_factor = 0.3	Percentual.	Combat tactics are defined in /Hearts of Iron IV/common/combat_tactics.txt.	1.6

Name	Effects	Examples	Modifier type	Notes	Version added
acclimatization_cold_climate_gain_factor	Cold acclimatization gain factor.	acclimatization_cold_climate_gain_factor = 0.5	Percentual.		1.0
acclimatization_hot_climate_gain_factor	Hot acclimatization gain factor.	acclimatization_hot_climate_gain_factor = 0.5	Percentual.		1.0
air_superiority_bonus_in_combat	The bonus in combat given from having air superiority.	air_superiority_bonus_in_combat = 0.5	Percentual.		1.0
army_attack_factor	The bonus to land army's attack.	army_attack_factor = 0.5	Percentual.		1.0
army_core_attack_factor	The bonus to land army's attack on core territory.	army_core_attack_factor = 0.1	Percentual.		1.0
army_attack_against_major_factor	The bonus to land army's attack against a major country.	army_attack_against_major_factor = 0.5	Percentual.		1.11
army_attack_against_minor_factor	The bonus to land army's attack against a non-major country.	army_attack_against_minor_factor = 0.5	Percentual.		1.11
army_attack_speed_factor	The bonus to speed at which the land army attacks.	army_attack_speed_factor = 0.5	Percentual.		1.0
army_breakthrough_against_major_factor	The bonus to land army's breakthrough against a major country.	army_breakthrough_against_major_factor = 0.5	Percentual.		1.11
army_breakthrough_against_minor_factor	The bonus to land army's breakthrough against a non-major country.	army_breakthrough_against_minor_factor = 0.5	Percentual.		1.11
army_defence_factor	The bonus to land army's defence.	army_defence_factor = 0.5	Percentual.		1.0
army_defence_against_major_factor	The bonus to land army's defence against a major country.	army_defence_against_major_factor = 0.5	Percentual.		1.11
army_defence_against_minor_factor	The bonus to land army's defence against a non-major country.	army_defence_against_minor_factor = 0.5	Percentual.		1.11
army_core_defence_factor	The bonus to land army's defence on core territory.	army_core_defence_factor = 0.1	Percentual.		1.0
army_speed_factor	The bonus to land army's speed.	army_speed_factor = 0.5	Percentual.		1.0
army_strength_factor	The bonus to land army's strength.	army_strength_factor = 0.5	Percentual.		1.11
<unit type>_attack_factor	The bonus to specified unit type's attack.	cavalry_attack_factor = 0.5	Percentual.	Allowed unit types are army_armor, army_artillery, army_infantry, cavalry, mechanized, motorized, special_forces	1.0
<unit type>_defence_factor	The bonus to the specified unit type's defence.	army_artillery_defence_factor = 0.5	Percentual.	Allowed unit types are army_armor, army_artillery, army_infantry, cavalry, mechanized, motorized, special_forces	1.0
<unit type>_speed_factor	The bonus to specified unit type's speed.	army_armor_speed_factor = 0.5	Percentual.	Allowed unit types are army_armor and cavalry. Cavalry_speed_factor is currently broken and not recognized by the game.	1.0
army_morale	Modifies the division recovery rate.	army_morale = 10	Flat.		1.0
army_morale_factor	Modifies the division recovery rate by a percentage.	army_morale_factor = 0.3	Percentual.		1.0
army_org	Modifies the army's organisation.	army_org = 10	Flat.		1.0
army_org_factor	Modifies the army's organisation by a percentage.	army_org_factor = 0.3	Percentual.		1.0
army_org_regain	Modifies the army's organisation regain speed by a percentage.	army_org_regain = 0.3	Percentual.		1.5.1
breakthrough_factor	Modifies the army's breakthrough.	breakthrough_factor = 0.3	Percentual.		1.0
cas_damage_reduction	Reguces the damage dealt by close air support.	cas_damage_reduction = 0.3	Percentual.		1.0
combat_width_factor	Changes our own combat width.	combat_width_factor = 0.3	Percentual.		1.0
coordination_bonus	Changes the bonus to coordination, that is how much damage is done to the primary target instead of being spread out.	coordination_bonus = 0.3	Percentual.		1.11
dig_in_speed	Changes entrenchment speed.	dig_in_speed = 2	Flat.		1.0
dig_in_speed_factor	Changes entrenchment speed by a percentage.	dig_in_speed_factor = 0.5	Percentual.		1.0
experience_gain_army_unit	Changes experience gain by the army divisions.	experience_gain_army_unit = 0.5	Flat.		1.0
experience_gain_army_unit_factor	Changes experience gain by the army divisions by a percentage.	experience_gain_army_unit_factor = 0.5	Percentual.		1.0
experience_loss_factor	Changes the loss in divisions' experience in combat.	experience_loss_factor = 0.3	Percentual.		1.0
initiative_factor	Modifies the initiative.	initiative_factor = 0.3	Percentual.		1.11
land_night_attack	Changes the penalty due to attacking at night.	land_night_attack = 0.5	Percentual.		1.0
max_dig_in	Changes the maximum entrenchment.	max_dig_in = 20	Flat.	Can also apply in state scope.	1.0
max_dig_in_factor	Changes the maximum entrenchment by a percentage.	max_dig_in_factor = 0.5	Percentual.	Can also apply in state scope.	1.0
max_planning	Changes the maximum planning.	max_planning = 20	Flat.		1.0
max_planning_factor	Changes the maximum planning by a percentage.	max_planning_factor = 0.5	Percentual.		1.9
pocket_penalty	Reduces the penalty that troops take when they are encircled.	pocket_penalty = 0.2	Percentual.		1.0
recon_factor	Changes reconnaisance.	recon_factor = 0.2	Percentual.		1.0
recon_factor_while_entrenched	Changes reconnaisance for entrenched divisions.	recon_factor_while_entrenched = 0.2	Percentual.		1.0
special_forces_cap	Changes the maximum amount of special forces by a percentage.	special_forces_cap = 0.5	Percentual.		1.0
special_forces_min	Changes the maximum amount of special forces.	special_forces_min = 250	Flat.		1.0
terrain_penalty_reduction	Decreases the penalties given by terrain.	terrain_penalty_reduction = 0.3	Percentual.	Only works in the unit_leader scope despite the modifier being present in vanilla national spirits at the time of writing.	1.0
org_loss_at_low_org_factor	Modifies the organisation loss for units when they have low organisation.	org_loss_at_low_org_factor = 0.2	Percentual.		1.0
org_loss_when_moving	Modifies the organisation loss for units when they are moving.	org_loss_when_moving = 0.2	Percentual.		1.0
planning_speed	Modifies the planning speed.	planning_speed = 0.2	Percentual.	Works in state scope.	1.0
experience_gain_<unit type>_combat_factor	Modifies the experience gain in combat for the unit type.	experience_gain_artillery_combat_factor = 0.3	Percentual.	Units are defined in /Hearts of Iron IV/common/units/*.txt files.	1.11
experience_gain_<unit type>_training_factor	Modifies the experience gain in training for the unit type.	experience_gain_destroyer_training_factor = 0.3	Percentual.	Units are defined in /Hearts of Iron IV/common/units/*.txt files.	1.11

Name	Effects	Examples	Modifier type	Notes	Version added
naval_invasion_prep_speed	Modifies the speed at which a naval invasion is prepared.	naval_invasion_prep_speed = 10	Flat.	Can be a targeted modifier or in unit leader scope.	1.0
naval_invasion_capacity	Modifies the amount of divisions that can have a naval invasion plan going on at the same time.	naval_invasion_capacity = 10	Flat.		1.0
naval_invasion_penalty	Modifies the penalty for naval invasions.	naval_invasion_penalty = 0.3	Percentual.	Is the opposite of amphibious_invasion_defence. Can also apply in state scope.	1.0
naval_invasion_planning_bonus_speed	Modifies the speed at which the planning bonus is accumulated during a naval invasion preparation.	naval_invasion_planning_bonus_speed = 0.3	Percentual.		1.11
amphibious_invasion	Modifies the speed of units during naval invasions.	amphibious_invasion = 0.5	Percentual.		1.6
amphibious_invasion_defence	Modifies the penalty given by naval invasions.	amphibious_invasion_defence = 0.5	Percentual.	Is the opposite of naval_invasion_penalty. Can also apply in state scope.	1.6
invasion_preparation	Modifies the required preparation needed to execute a naval invasion.	invasion_preparation = 0.3	Percentual.	Is the opposite of naval_invasion_prep_speed. Can be used in unit leader scope.	1.6

Name	Effects	Examples	Modifier type	Version added
convoy_escort_efficiency	Modifies the efficiency of the convoy escort mission.	convoy_escort_efficiency = 0.5	Percentual.	1.6
convoy_raiding_efficiency_factor	Modifies the efficiency of the convoy raiding mission.	convoy_raiding_efficiency_factor = 0.5	Percentual.	1.6
convoy_retreat_speed	Modifies the speed of convoys retreating.	convoy_retreat_speed = 0.5	Percentual.	1.6
critical_receive_chance	Changes the chance for the enemy to get a critical hit on us in naval combat.	critical_receive_chance = 0.5	Percentual.	1.6
experience_gain_navy_unit	Modifies the daily gain of experience by the ships.	experience_gain_navy_unit = 0.02	Flat.	1.6
experience_gain_navy_unit_factor	Modifies the gain of experience by the ships by a percentage.	experience_gain_navy_unit_factor = 0.3	Percentual.	1.6
mines_planting_by_fleets_factor	Modifies the efficiency of the mine planting mission.	mines_planting_by_fleets_factor = 0.3	Percentual.	1.6
mines_sweeping_by_fleets_factor	Modifies the efficiency of the mine sweeping mission.	mines_sweeping_by_fleets_factor = 0.3	Percentual.	1.6
naval_accidents_chance	Modifies the chance for a ship to be accidentally sunk or damaged.	naval_accidents_chance = 0.3	Percentual.	1.6
navy_anti_air_attack	Modifies the attack against enemy airplanes for the country's ships.	navy_anti_air_attack = 5	Flat.	1.6
navy_anti_air_attack_factor	Modifies the attack against enemy airplanes for the country's ships by a percentage.	navy_anti_air_attack_factor = 0.3	Percentual.	1.6
naval_coordination	Modifies how quickly the fleet can gather or disperse when a target is found or when switching missions.	naval_coordination = 0.3	Percentual.	1.6
naval_critical_effect_factor	Modifies the effects of sustained critical hits on our ships.	naval_critical_effect_factor = 0.3	Percentual.	1.6
naval_critical_score_chance_factor	Modifies the chance for us to get a critical hit on the enemy in naval combat.	naval_critical_score_chance_factor = 0.3	Percentual.	1.6
naval_damage_factor	Modifies the damage dealt by our ships.	naval_damage_factor = 0.3	Percentual.	1.6
naval_defense_factor	Modifies the damage received by our ships.	naval_defense_factor = 0.3	Percentual.	1.6
naval_detection	Modifies the chance for our ships to detect submarines.	naval_detection = 0.3	Percentual.	1.6
naval_enemy_fleet_size_ratio_penalty_factor	Modifies the penalty the enemy receives for having a larger amount of ships than us.	naval_enemy_fleet_size_ratio_penalty_factor = 0.3	Percentual.	1.6
naval_enemy_positioning_in_initial_attack	Modifies the positioning of the enemy during the initial naval attack.	naval_enemy_positioning_in_initial_attack = 3	Flat.	1.11
naval_enemy_retreat_chance	Modifies the chance for the enemy to retreat.	naval_enemy_retreat_chance = 0.3	Percentual.	1.6
naval_has_potf_in_combat_attack	Modifies the attack of the navy when fighting together with the pride of the fleet.	naval_has_potf_in_combat_attack = 0.3	Percentual.	1.6
naval_has_potf_in_combat_defense	Modifies the defense of the navy when fighting together with the pride of the fleet.	naval_has_potf_in_combat_defense = 0.3	Percentual.	1.6
naval_hit_chance	Modifies the chance for the naval attacks to land.	naval_hit_chance = 0.3	Percentual.	1.6
naval_mine_hit_chance	Modifies the chance for a naval mine to hit.	naval_mine_hit_chance = 0.3	Percentual.	1.6
naval_mines_damage_factor	Modifies the damage naval mines deal to enemy ships.	naval_mines_damage_factor = 0.3	Percentual.	1.6
naval_mines_effect_reduction	Modifies the damage enemy naval mines deal.	naval_mines_effect_reduction = 0.3	Percentual.	1.6
naval_morale	Modifies the navy recovery rate.	naval_morale = 15	Flat.	1.6
naval_morale_factor	Modifies the navy recovery rate by a percentage.	naval_morale_factor = 0.3	Percentual.	1.6
naval_night_attack	Modifies the damage dealt by the country's ships at night.	naval_night_attack = 0.3	Percentual.	1.11
naval_retreat_chance	Modifies the chance for the country's ships to retreat.	naval_retreat_chance = 0.3	Percentual.	1.6
naval_retreat_chance_after_initial_combat	Modifies the chance for the country's ships to retreat after initial combat.	naval_retreat_chance_after_initial_combat = 0.3	Percentual.	1.11
naval_retreat_speed	Modifies the speed at which the country's ships retreat.	naval_retreat_speed = 0.3	Percentual.	1.6
naval_retreat_speed_after_initial_combat	Modifies the speed at which the country's ships to retreat after initial combat.	naval_retreat_speed_after_initial_combat = 0.3	Percentual.	1.11
naval_speed_factor	Modifies the speed of the country's ships.	naval_speed_factor = 0.3	Percentual.	1.6
navy_org	Modifies the navy's organisation.	navy_org = 10	Flat.	1.0
navy_org_factor	Modifies the navy's organisation by a percentage.	navy_org_factor = 0.3	Percentual.	1.0
navy_max_range	Modifies the navy's maximum range.	navy_max_range = 10	Flat.	1.0
navy_max_range_factor	Modifies the navy's maximum range by a percentage.	navy_max_range_factor = 0.3	Percentual.	1.0
naval_torpedo_cooldown_factor	Modifies the rate at which the country's ships can fire torpedos.	naval_torpedo_cooldown_factor = 0.3	Percentual.	1.6
naval_torpedo_hit_chance_factor	Modifies the likelihood for country's torpedos to hit enemy ships.	naval_torpedo_hit_chance_factor = 0.3	Percentual.	1.6
naval_torpedo_reveal_chance_factor	Modifies the chance that the country's submarines reveal themselves when firing torpedos.	naval_torpedo_reveal_chance_factor = 0.3	Percentual.	1.6
naval_torpedo_screen_penetration_factor	Modifies the rate at which the country's torpedos penalise enemy screening.	naval_torpedo_screen_penetration_factor = 0.3	Percentual.	1.6
naval_torpedo_damage_reduction_factor	Modifies the damage at which enemy torpedos damage the country's ships.	naval_torpedo_damage_reduction_factor = 0.3	Percentual.	1.12
naval_torpedo_enemy_critical_chance_factor	Modifies the chance for an enemy torpedo to get a cricical hit against the country's ships.	naval_torpedo_enemy_critical_chance_factor = 0.3	Percentual.	1.12
naval_light_gun_hit_chance_factor	Modifies the chance for the country's naval light guns to hit enemy ships.	naval_light_gun_hit_chance_factor = 0.3	Percentual.	1.12
naval_heavy_gun_hit_chance_factor	Modifies the chance for the country's naval heavy guns to hit enemy ships.	naval_heavy_gun_hit_chance_factor = 0.3	Percentual.	1.12
navy_capital_ship_attack_factor	Modifies the attack of the country's capital ships.	navy_capital_ship_attack_factor = 0.3	Percentual.	1.6
navy_capital_ship_defence_factor	Modifies the defence of the country's capital ships.	navy_capital_ship_defence_factor = 0.3	Percentual.	1.6
navy_screen_attack_factor	Modifies the attack of the country's screening ships.	navy_screen_attack_factor = 0.3	Percentual.	1.6
navy_screen_defence_factor	Modifies the defence of the country's screening ships.	navy_screen_defence_factor = 0.3	Percentual.	1.6
navy_submarine_attack_factor	Modifies the attack of the country's submarines.	navy_submarine_attack_factor = 0.3	Percentual.	1.6
navy_submarine_defence_factor	Modifies the defence of the country's submarines.	navy_submarine_defence_factor = 0.3	Percentual.	1.6
navy_submarine_detection_factor	Modifies the country's detection of enemy submarines.	navy_submarine_detection_factor = 0.3	Percentual.	1.6
navy_visibility	Modifies the visibility of the country's navy.	navy_visibility = 0.3	Percentual.	1.6
navy_weather_penalty	Modifies the penalty the country's navy gets during poor weather.	navy_weather_penalty = 0.3	Percentual.	1.11
night_spotting_chance	Modifies the chance for the country's navy to spot the enemy at night.	night_spotting_chance = 0.3	Percentual.	1.11
positioning	Modifies the positioning of the country's navy.	positioning = 0.3	Percentual.	1.6
repair_speed_factor	Modifies the speed at which the dockyards repair the navy.	repair_speed_factor = 0.3	Percentual.	1.6
screening_efficiency	Modifies the efficiency screen ships operate.	screening_efficiency = 0.3	Percentual.	1.6
screening_without_screens	Modifies the base screening without any screen ships assigned.	screening_without_screens = 0.3	Percentual.	1.11
ships_at_battle_start	Modifies the number of ships at first contact.	ships_at_battle_start = 0.3	Percentual.	1.6
spotting_chance	Modifies the chance to spot enemy ships.	spotting_chance = 0.3	Percentual.	1.6
strike_force_movement_org_loss	Modifies the organisation loss from movement during the strike force mission.	strike_force_movement_org_loss = 0.3	Percentual.	1.6
sub_retreat_speed	Modifies the retreat speed of submarines.	sub_retreat_speed = 0.3	Percentual.	1.6
submarine_attack	Modifies the attack of submarines.	submarine_attack = 0.3	Percentual.	1.6

Name	Effects	Examples	Modifier type	Version added
navy_carrier_air_agility_factor	Modifies the agility of airplanes executing tasks from carriers.	navy_carrier_air_agility_factor = 0.3	Percentual.	1.6
navy_carrier_air_attack_factor	Modifies the attack of airplanes executing tasks from carriers.	navy_carrier_air_attack_factor = 0.3	Percentual.	1.6
navy_carrier_air_targetting_factor	Modifies the targeting of airplanes executing tasks from carriers.	navy_carrier_air_targetting_factor = 0.3	Percentual.	1.6
air_carrier_night_penalty_reduction_factor	Modifies the reduction of the night penalty for air carriers.	air_carrier_night_penalty_reduction_factor = 0.5	Percentual.	1.0
carrier_capacity_penalty_reduction	Modifies the penalty given by overcrowding a carrier with planes.	carrier_capacity_penalty_reduction = 0.5	Percentual.	1.6
carrier_traffic	Modifies the traffic of carriers.	carrier_traffic = 0.5	Percentual.	1.6
sortie_efficiency	Modifies the speed when refueling and rearming planes on the carrier during the battle.	sortie_efficiency = 0.3	Percentual.	1.6
carrier_sortie_hours_delay	Modifies the delay in hours for refueling and rearming planes on the carrier.	carrier_sortie_hours_delay = 2	Flat.	1.12
carrier_night_traffic	Modifies the traffic of carriers at night.	carrier_night_traffic = 0.5	Percentual.	1.11
fighter_sortie_efficiency	Modifies the speed when refueling and rearming fighter planes on the carrier during the battle.	fighter_sortie_efficiency = 0.3	Percentual.	1.6

修正

Applying a modifier

Tooltip modification

Dynamic modifiers

Arguments

Example

Adding a dynamic modifier

Static modifiers

Global modifiers

Difficulty modifiers

Relation modifiers

Province modifiers

Balance of power modifiers

Modifier definitions

Examples

Using in variables

Opinion modifiers

Examples

Implementation

List of modifiers

Country scope

General

Politics

Diplomacy

Autonomy

Governments in exile

Equipment

Fuel and supply

Buildings

Resistance and compliance

Intelligence

Operatives

AI

Military outside of combat

MIOs

Unit leaders

General combat

Land combat

Naval invasions

Naval combat

Carriers and their planes

Air combat

Targeted modifiers

State scope

Unit leader scope

Strategic region scope

Notes and references

Name	Effects	Examples	Modifier type	Version added
air_accidents_factor	Modifies the chance for air accidents to happen.	air_accidents_factor = 0.5	Percentual.	1.0
air_ace_bonuses_factor	Modifies the bonuses the aces grant.	air_ace_bonuses_factor = 0.5	Percentual.	1.11
air_ace_generation_chance_factor	Modifies the chance for aces to appear.	air_ace_generation_chance_factor = 0.5	Percentual.	1.11
ace_effectiveness_factor	Modifies the effectiveness of aces	ace_effectiveness_factor = 0.5	Percentual.	1.0
air_agility_factor	Modifies the agility of the country's airplanes.	air_agility_factor = 0.5	Percentual.	1.0
air_attack_factor	Modifies the attack of the country's airplanes.	air_attack_factor = 0.5	Percentual.	1.0
air_defence_factor	Modifies the defence of the country's airplanes.	air_defence_factor = 0.5	Percentual.	1.0
air_interception_detect_factor	Modifies the chance of detecting an enemy plane while on interception mission.	air_interception_detect_factor = 0.5	Percentual.	1.0
naval_strike_targetting_factor	Modifies the ability of planes to target their objectives when executing naval strikes.	naval_strike_targetting_factor = 0.5	Percentual.	1.0
port_strike	Modifies the damage done by planes on the port strike mission.	port_strike = 0.5	Percentual.	1.0
air_close_air_support_org_damage_factor	Modifies the damage to division organisation by planes on the close air support mission.	air_close_air_support_org_damage_factor = 0.5	Percentual.	1.11
air_bombing_targetting	Modifies targetting for ground bombing.	air_bombing_targetting = 0.5	Percentual.	1.0
air_cas_efficiency	Modifies efficiency of close-air-support.	air_cas_efficiency = 0.5	Percentual.	1.0
air_cas_present_factor	Modifies impact of close-air-support in land combat.	air_cas_present_factor = 0.5	Percentual.	1.0
air_escort_efficiency	Modifies ability of planes in dogfights.	air_escort_efficiency = 0.5	Percentual.	1.0
air_home_defence_factor	Modifies the defence of airplanes when defending states in the home region (Connected to the country's capital by land)	air_home_defence_factor = 0.5	Percentual.	1.11
air_intercept_efficiency	Modifies the efficiency of air interception.	air_intercept_efficiency = 0.5	Percentual.	1.0
air_manpower_requirement_factor	Modifies the manpower required to deploy an airplane.	air_manpower_requirement_factor = -0.5	Percentual.	1.11
air_maximum_speed_factor	Modifies the maximum speed of the airforce.	air_maximum_speed_factor = 0.5	Percentual.	1.0
air_mission_efficiency	Modifies the efficiency of airplanes in missions.	air_mission_efficiency = 0.5	Percentual.	1.0
air_mission_xp_gain_factor	Modifies the experience gain for airplanes for doing missions.	air_mission_xp_gain_factor = 0.5	Percentual.	1.0
air_nav_efficiency	Modifies the efficiency of airplanes doing port strike and naval bombing missions.	air_nav_efficiency = 0.5	Percentual.	1.0
air_night_penalty	Modifies the penalty the airforce receives while at night.	air_night_penalty = 0.5	Percentual.	1.0
air_power_projection_factor	Modifies the power projection given out by the airplanes.	air_power_projection_factor = 0.5	Percentual.	1.0
air_range_factor	Modifies the range of the airplanes.	air_range_factor = 0.5	Percentual.	1.0
air_strategic_bomber_bombing_factor	Modifies the efficiency of the strategic bombing mission.	air_strategic_bomber_bombing_factor = 0.5	Percentual.	1.0
air_strategic_bomber_night_penalty	Modifies the penalty for the strategic bombing mission while at night.	air_strategic_bomber_night_penalty = 0.5	Percentual.	1.0
air_superiority_detect_factor	Modifies the chance to detect enemy planes while on the air superiority mission. Displays as Fighter Detection.	air_superiority_detect_factor = 0.5	Percentual.	1.0
air_superiority_efficiency	Modifies the efficiency of the air superiority mission.	air_superiority_efficiency = 0.5	Percentual.	1.0
air_training_xp_gain_factor	Modifies the air experience gain from training.	air_training_xp_gain_factor = 0.5	Percentual.	1.6
air_untrained_pilots_penalty_factor	Modifies the penalty given to airplanes which don't have enough experience.	air_untrained_pilots_penalty_factor = 0.5	Percentual.	1.6
air_weather_penalty	Modifies the penalty the airplanes receive because of weather.	air_weather_penalty = 0.5	Percentual.	1.0
air_wing_xp_loss_when_killed_factor	Modifies the experience loss of airplanes due to airplanes being shot down.	air_wing_xp_loss_when_killed_factor = 0.5	Percentual.	1.0
army_bonus_air_superiority_factor	Modifies the bonus to land combat from air superiority.	army_bonus_air_superiority_factor = 0.5	Percentual.	1.0
enemy_army_bonus_air_superiority_factor	Modifies the effect to land combat from enemy air superiority.	enemy_army_bonus_air_superiority_factor = 0.5	Percentual.	1.0
ground_attack_factor	Modifies the bonus to airplane attack on enemy divisions by a percentage.	ground_attack_factor = 0.5	Percentual.	1.0
mines_planting_by_air_factor	Modifies efficiency of airplanes planting mines.	mines_planting_by_air_factor = 0.5	Percentual.	1.0
mines_sweeping_by_air_factor	Modifies efficiency of airplanes sweeping mines.	mines_sweeping_by_air_factor = 0.5	Percentual.	1.0
strategic_bomb_visibility	Modifies the chance for the enemy to detect our strategic bombers.	strategic_bomb_visibility = 0.5	Percentual.	1.0
rocket_attack_factor	Modifies the attack given to rockets.	rocket_attack_factor = 0.5	Percentual.	1.0

Name	Effects	Examples	Modifier type	Notes	Version added
extra_trade_to_target_factor	Adds extra produced recourses available for trade to target country.	extra_trade_to_target_factor = 0.5	Percentual.		1.5
generate_wargoal_tension_against	Changes world tension necessary for us to justify against the target country.	generate_wargoal_tension_against = 0.5	Flat.		1.5
cic_to_target_factor	Gives a portion of the country's civilian industry to the specified target.	cic_to_target_factor = 0.5	Percentual.		1.5
mic_to_target_factor	Gives a portion of the country's military industry to the specified target.	mic_to_target_factor = 0.5	Percentual.		1.5
trade_cost_for_target_factor	The cost for the targeted country to purchase this country's resources.	trade_cost_for_target_factor = 0.5	Percentual.		1.5
targeted_legitimacy_daily	Changes daily gain of legitimacy of the target country.	targeted_legitimacy_daily = 0.5	Flat.		1.6
attack_bonus_against	Gives an attack bonus against the armies of the specified country.	attack_bonus_against = 0.5	Percentual.	Due to a bug, this will not apply to units that are defending.	1.5
attack_bonus_against_cores	Gives an attack bonus against the armies of the specified country on its core territory.	attack_bonus_against_cores = 0.5	Percentual.		1.5
breakthrough_bonus_against	Gives a breakthrough bonus against the armies of the specified country.	breakthrough_bonus_against = 0.5	Percentual.		1.5
defense_bonus_against	Gives a defense bonus against the armies of the specified country.	defense_bonus_against = 0.5	Percentual.	Due to a bug, this will not apply to units that are attacking.	1.5

Name	Effects	Examples	Modifier type	Notes	Version added
army_speed_factor_for_controller	Changes the division speed for the controller of the state.	army_speed_factor_for_controller = 0.5	Percentual.		1.0
attrition_for_controller	Changes the attrition for the controller of the state.	attrition_for_controller = 0.5	Percentual.		1.0
equipment_capture_for_controller	Changes the equipment capture ratio by the state's controller.	equipment_capture_for_controller = 0.3	Flat.		1.13
equipment_capture_factor_for_controller	Modifies the equipment capture ratio by the state's controller.	equipment_capture_factor_for_controller = 0.3	Percentual.		1.13
enemy_army_speed_factor	Modifies the speed of divisions at war with the state's owner.	enemy_army_speed_factor = 0.3	Percentual.		1.13
enemy_local_supplies	Modifies the supply of divisions at war with the state's owner.	enemy_local_supplies = 0.3	Percentual.		1.13
enemy_attrition	Modifies the attrition of divisions at war with the state's owner.	enemy_attrition = 0.3	Percentual.		1.13
enemy_truck_attrition_factor	Modifies the truck attrition of divisions at war with the state's owner.	enemy_truck_attrition_factor = 0.3	Percentual.		1.13
compliance_gain	Changes the compliance gain in the current state.	compliance_gain = 0.01	Flat.	Can also go into country scope. Can also be used as a targeted modifier.	1.9
compliance_growth	Changes the compliance growth speed in the current state.	compliance_growth = 0.5	Percentual.	Can also go into country scope.	1.9
country_resource_<resource>	Directly modifies the country's resource stockpile.	country_resource_oil = 10	Flat.	Can also go into country scope.	1.0
country_resource_cost_<resource>	Directly modifies the country's resource stockpile.	country_resource_cost_aluminium = 10	Flat.	Can also go into country scope.	1.0
disable_strategic_redeployment	Disables strategic redeployment in the state.	disable_strategic_redeployment = 1	Boolean (only 1).		1.9
disable_strategic_redeployment_for_controller	Disables strategic redeployment in the state for the controller.	disable_strategic_redeployment_for_controller = 1	Boolean (only 1).		1.9
enemy_intel_network_gain_factor_over_occupied_tag	Modifies enemy intel network strength gain.	enemy_intel_network_gain_factor_over_occupied_tag = 0.3	Percentual.		1.9
local_building_slots	Modifies amount of building slots.	local_building_slots = 2	Flat.		1.9
local_building_slots_factor	Modifies amount of building slots by a percentage.	local_building_slots_factor = 0.3	Percentual.		1.9
local_factories	Modifies amount of available factories in the state.	local_factories = 0.3	Percentual.		1.9
local_factory_sabotage	Modifies chance for factory sabotage.	local_factory_sabotage = 0.3	Percentual.		1.9
local_intel_to_enemies	Modifies amount of intel to enemies.	local_intel_to_enemies = 0.3	Percentual.		1.9
local_manpower	Modifies amount of available manpower.	local_manpower = 0.3	Percentual.		1.4
local_non_core_manpower	Modifies amount of available non-core manpower.	local_non_core_manpower = 0.3	Percentual.		1.3.3
local_org_regain	Modifies how much organisation is regained after combat.	local_org_regain = -0.3	Percentual.	Can be used in provinces and strategic regions.	1.0
local_resources	Modifies amount of available resources.	local_resources = 0.3	Flat.		1.9
local_supplies	Modifies amount of available supplies.	local_supplies = 0.3	Percentual.		1.9
local_supplies_for_controller	Modifies amount of available supplies for the controller.	local_supplies_for_controller = 0.3	Percentual.		1.9
local_supply_impact_factor	Modifies the impact that the state's local supplies have.	local_supply_impact_factor = 0.3	Percentual.		1.12
local_non_core_supply_impact_factor	Modifies the impact that the state's local supplies have if the state is not cored by the controller of provinces within.	local_non_core_supply_impact_factor = 0.3	Percentual.		1.12
mobilization_speed	Modifies the mobilisation speed.	mobilization_speed = 0.3	Percentual.		1.9
non_core_manpower	Modifies the amount of recruited non-core manpower.	non_core_manpower = 0.3	Percentual.		1.9
max_fuel_building	Modifies the amount of fuel capacity, in thousands, given to the state controller from the building.	max_fuel_building = 1500	Percentual.	Does not have to be in a building.	1.0
recruitable_population	Modifies the amount of recruited manpower.	recruitable_population = 0.03	Flat.		1.9
recruitable_population_factor	Modifies the amount of recruited manpower by a percentage.	recruitable_population_factor = 0.3	Percentual.		1.9
resistance_damage_to_garrison	Modifies the amount of resistance damage to the garrison.	resistance_damage_to_garrison = 0.3	Percentual.		1.9
resistance_decay	Modifies the speed of resistance decay.	resistance_decay = 0.3	Percentual.		1.9
resistance_garrison_penetration_chance	Modifies the chance for the garrison to be penetrated.	resistance_garrison_penetration_chance = 0.3	Percentual.		1.9
resistance_growth	Modifies the speed of the resistance growth.	resistance_growth = 0.3	Percentual.		1.9
resistance_target	Modifies the target of the resistance growth.	resistance_target = 0.3	Percentual.		1.9
starting_compliance	Modifies the base compliance value.	starting_compliance = 0.3	Percentual.		1.9
state_production_speed_<building>_factor	Modifies the building speed of the specified building in the state.	state_production_speed_industrial_complex_factor = 0.3	Percentual.	Use state_production_speed_buildings_factor for it to apply to all buildings. (added in 1.9)	1.9.1
state_repair_speed_<building>_factor	Modifies the repair speed of the specified building in the state.	state_repair_speed_industrial_complex_factor = 0.3	Percentual.		1.9.1
state_resource_<resource>	Modifies the amount of the specified resource in the state.	state_resource_oil = 5	Flat.		1.0
state_resources_factor	Modifies the amount of resources in a state.	state_resources_factor = 0.2	Percentual.		1.9
state_resource_cost_<resource>	Modifies the amount of the specified resource in the state.	state_resource_cost_rubber = 5	Flat.		1.9
temporary_state_resource_<resource>	Modifies the amount of the specified resource in the state as an added modifier after the base one.	temporary_state_resource_tungsten = 5	Flat.		1.0
enemy_operative_detection_chance_over_occupied_tag	Offsets the chance for an enemy operative to be detected for the tag that occupies this state.	enemy_operative_detection_chance_over_occupied_tag = 5	Flat.		1.9
enemy_operative_detection_chance_factor_over_occupied_tag	Modifies the chance for an enemy operative to be detected for the tag that occupies this state.	enemy_operative_detection_chance_factor_over_occupied_tag = 0.5	Percentual.		1.9

Name	Effects	Examples	Modifier type	Notes	Version added
cannot_use_abilities	Disables using abilities.	cannot_use_abilities = 1	Boolean (only 1).		1.5
dont_lose_dig_in_on_attack	Disables losing the entrechment bonus during attack.	dont_lose_dig_in_on_attack = 1	Boolean (only 1).		1.5
exiled_divisions_attack_factor	Modifies the attack of divisions led by this unit leader if they're exiled.	exiled_divisions_attack_factor = 0.4	Percentual.		1.6
exiled_divisions_defense_factor	Modifies the defence of divisions led by this unit leader if they're exiled.	exiled_divisions_defense_factor = 0.4	Percentual.		1.6
own_exiled_divisions_attack_factor	Modifies the attack of divisions led by this unit leader if they're exiled and belong to the same country.	own_exiled_divisions_attack_factor = 0.4	Percentual.		1.6
own_exiled_divisions_defense_factor	Modifies the defence of divisions led by this unit leader if they're exiled and belong to the same country.	own_exiled_divisions_defense_factor = 0.4	Percentual.		1.6
experience_gain_factor	Modifies the experience gained by the unit leader.	experience_gain_factor = 0.1	Percentual.		1.5
fortification_collateral_chance	Chance for combat to damage enemy forts.	fortification_collateral_chance = 0.4	Percentual.		1.5
fortification_damage	Damage enemy forts receive from combat.	fortification_damage = 0.4	Percentual.		1.5
max_commander_army_size	Modifies amount of divisions that can be led by the army leader without penalty.	max_commander_army_size = 12	Flat.		1.5
max_army_group_size	Modifies amount of army groups that can be led by the field marshal without penalty.	max_army_group_size = 1	Flat.		1.5
paradrop_organization_factor	The amount of organisation paratroopers will have after paradropping.	paradrop_organization_factor = 0.5	Percentual.		1.5
paratrooper_aa_defense	The strength of anti-air against paratroopers.	paratrooper_aa_defense = 0.5	Percentual.		1.5
paratrooper_weight_factor	Paratrooper transport space factor.	paratrooper_weight_factor = 0.5	Percentual.	Can also be used in country scope.	1.13
promote_cost_factor	The cost to promote the unit leader.	promote_cost_factor = 0.5	Percentual.		1.5
reassignment_duration_factor	The length of the reassignment penalty.	reassignment_duration_factor = 0.5	Percentual.		1.5
river_crossing_factor	The effects of the river crossing penalty.	river_crossing_factor = 0.5	Percentual.		1.5
sickness_chance	The chance for the unit leader to get sick.	sickness_chance = 0.5	Percentual.		1.5
skill_bonus_factor	The bonus the unit leader receives from their skillset.	skill_bonus_factor = 0.5	Percentual.		1.5
trait_<trait>_xp_gain_factor	Modifies the experience gain towards the specified trait.	trait_infantry_leader_xp_gain_factor = 0.5	Percentual.		1.11
terrain_trait_xp_gain_factor	Modifies the experience gain towards all terrain traits (With the type of either basic_terrain_trait or assignable_terrain_trait).	terrain_trait_xp_gain_factor = 0.5	Percentual.		1.5
wounded_chance_factor	The chance for the unit leader to get wounded.	wounded_chance_factor = 0.5	Percentual.		1.5
shore_bombardment_bonus	Modifies the penalty given by the shore bombardment on divisions.	shore_bombardment_bonus = 0.5	Percentual.	Can apply to both army and navy leaders.	1.5

Name	Effects	Examples	Modifier type	Version added
air_accidents	Base chance for an air accident to happen.	air_accidents = 0.3	Flat.	1.0
air_detection	Base chance for air detection.	air_detection = -0.1	Flat.	1.0
naval_strike	Base efficiency for naval strikes.	naval_strike = -0.1	Flat.	1.0
navy_casualty_on_sink	Modifies the casualties when ships are sunk in this region.	navy_casualty_on_sink = -0.1	Percentual.	1.6
navy_casualty_on_hit	Modifies the casualties when ships are damaged in this region.	navy_casualty_on_hit = -0.1	Percentual.	1.6