Modding Effects

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This page documents the various effects in the vanilla game. Modders can apply these effects to their custom content.

Please view the items/characters/weapons for more details on the exact usage.

Note: Despite the folder names, most of these effects can used by characters, weapons or items. They're only split into Global/Items/Weapons here to make it easier to find the associated files.

Global Effects (Guide)

effect.gd

Location: res://items/global/effect.gd

The file that is used the most for applying effects. If you want to apply an effect, there's a very strong chance you'll do it with this file.

Here's an overview of what the various properties of effect.gd do. We'll use acid_effect_1.tres as a reference, which grants "+8 Max HP" (at time of writing).

Property	Value for Acid	Description
Key	stat_max_hp	Has two uses: Most commonly, it specifies the target of the effect's behaviour: For example, if you're modifying a stat, the key is the stat (eg "stat_max_hp"). The second use is to specify a custom effet key, with the effect ID being the key: For example, Crown uses the key "harvesting_growth".
Text Key	n/a	If an effect key is specified, it's retrieved from the translation file. For simple stat changes, you don't need to provide a Text Key. But for anything more complex than basic stat changes, you'll probably need one. For example, Crown's Text Key is "effect_harvesting_growth". The translation string can include placeholders for args (arguments), which replace strings like "{0}", "{1}", etc. If you're making your own custom effect, you can specify what value these args should use with the method get_args in your effect file. To see how they're processed, view the "text" method in singletons/text.gd. This method basically reads the Text Key from the translations file, and works out where the arg replacements should be (ie. "{0}", "{1}", etc) Then replaces it them with the args provided.
Value	8	Sets the strength of the effect. For stats, this determines how much of a stat should be increased. The number can also be negative, which means a stat should be decreased. Sometimes the Value is used as a boolean, where 0 means FALSE/OFF/DISABLED, and 1 means TRUE/ON/ENABLED. Examples: Alien Eyes = The value of 6 determines that 6 Alien Eyes should be shot. Baby Elephant = The value of 25 is used to determine that the chance of Baby Elephant's effect is 25%.
Custom Key	n/a	Custom Key can be used instead of Key, to determine a special effect. This allows you to use the Key to specify, in most cases, the stat that the effect should act upon, while also using a custom effect. Example: Anvil's effect is set with its Custom Key, "upgrade_random_weapon". The effect upgrades a random weapon, and if it can't, then it increases a stat. Anvil's effect sets the key to "stat_armor", which means that the increased stat is Armor (And its value of "2" means that the Armor stat should be increased by 2.)
Storage Method	Sum	Determines how the value should be saved/applied: Sum = The value will be added (or deducted) from whatever the current run's effect value is. Acid uses this to add +8 to the current Max HP value. Your final Max HP value is the sum of whatever your current Max HP is, plus Acid's value of +8. Key Value = ??? Used by: apprentice / farmer_effect_2b / glutton_effect_1 / peacock_effect_2 / peacock_effect_3 Replace = This effect's value should replace (ie. override) the current run's stat. Eg. Arms Dealer uses "minimum_weapons_in_shop", with a value of 1, which replaces any other values in the run.
Effect Sign	From Value	Determines how to get the sign ("+" or "-") of the value. Positive = Force a plus sign (+) Negative = Force a minus sign (-) From Value = Get the sign from the value. If it's positive, show +, and vice versa. This is usually the best setting to use. Neutral = Ensures no sign will be added. From Arg = This means that the sign or format is specified with Custom Args.
Custom Args	n/a	Allows you to determine the formatting of any and all args that this effect uses. See below for more details.

custom_arg.gd

Location: res://items/global/custom_arg.gd

Not an effect file, but it used by many effects. Applied to the `custom_args` property, this allows you to format additional args.

You can find items that use this by searching the code for: custom_args = [ SubResource(

For example, open estys_couch_effect_1.tres in Godot's Inspector, which has lots of args ("+2 HP Regeneration for every -1% Speed you have.").

Item Effects

Location: res://effects/items/*.gd

Despite the heading, these effects can actually be used by characters and weapons too.

File (*.gd)	key	custom_key	text_key	Description	Used By
effect.gd	Stat ID, eg: stat_max_hp / bounce		not specified	Increases a stat (key) by the value	Many items
projectile_effect.gd	alien_eyes		effect_alien_eyes	Shoots {0} alien eyes around you every {4} seconds dealing {1} ({3}) damage each	Alien Eyes
effect.gd	Stat ID, eg: stat_max_hp / bounce	upgrade_random_weapon	effect_upgrade_random_weapon	A random weapon is upgraded when entering a shop. If you have no weapon to upgrade, you gain {VALUE} {STAT} instead.	Anvil
burn_chance_effect	burn_chance		effect_burn_chance	Attacks have a {0} chance to deal {1}x{2} ({3}) burning damage. Needs a corresponding burning_data stats file	Scared Sausage
class_bonus_effect	effect_weapon_class_bonus		not specified	{0} {1} with {2} weapons Grants a bonus to a specific stat (stat_name) when using a specific weapon class (weapon_class). Eg "+100 Range with Precise weapons"	Brawler, Crazy, Doctor, Ghost, Wildling
convert_stat_effect	materials		effect_convert_stat_end_of_wave	{0} of your {1} are converted into {2} at the end of a wave ({3} {1} = {4} {2})	Demon
dmg_when_death_effect	dmg_when_death_from_luck		effect_deal_dmg_when_death	{0} chance to deal {1} ({2}) damage to a random enemy when an enemy dies	Cyberball
dmg_when_pickup_gold_effect	dmg_when_pickup_gold_from_luck		effect_deal_dmg_when_pickup_gold	{0} chance to deal {1} ({2}) damage to a random enemy when you pick up a material	Baby Elephant, Lucky
gain_stat_for_every_stat_effect	Stat ID, eg: stat_max_hp / bounce		effect_gain_stat_for_every_enemy effect_gain_stat_for_every_perm_stat effect_gain_stat_for_every_stat	Links 2 stats together: {value} {stat} for every current living enemy {value} {stat} for every permanent {2} {3} you have {value} {key} for every {2} {3} you have Specify the 1st stat with key Specify the 2nd stat with stat_scaled	Artificer, Chunky, Generalist, Hunter, Knight, Saver, Speedy,
gain_stat_for_every_stat_effect	stat_attack_speed		effect_gain_stat_for_every_enemy		Community Support
gain_stat_for_every_stat_effect	stat_max_hp		effect_gain_stat_for_every_stat		Padding
gain_stat_for_every_stat_effect	stat_attack_speed		effect_gain_stat_for_every_stat		Retromation's Hoodie
gain_stat_for_every_stat_effect	stat_engineering		effect_gain_stat_for_every_stat		Strange Book
gain_stat_for_every_stat_effect	stat_hp_regeneration		effect_gain_stat_for_every_perm_stat		Esty's Couch
gain_stat_for_every_stat_effect	stat_percent_damage		effect_gain_stat_for_every_perm_stat		Power Generator
healing_effect	effect_heal		not specified	Only used by consumables. Functionally useless in the shop.	Fruit Legendary Crate
hp_cap_effect	hp_cap		effect_hp_cap_at_current_value	Your Max HP is capped at its current value	Handcuffs
item_exploding_effect	explode_on_hit		effect_explode_on_hit	You explode for {damage} ({scaling}) damage when you take damage. Requires an explosion stats file, which sets the damage and scaling.	Bull
item_exploding_effect	explode_on_death		effect_explode_on_death	Enemies have a {0} chance to explode for {1} ({2}) damage when they die	Landmines
					Rip and Tear
pacifist_effect	pacifist		effect_pacifist	Gain {value} material and XP for every living enemy at the end of a wave	Pacifist
projectile_effect	projectiles_on_death		effect_projectiles_on_death	Spawns projectiles when an enemy dies. Requires an associated projectile stats data (.tres) file. The .tres can be custom, or you can use the default base_ranged_weapon_stats.tres	Baby with a Beard
remove_speed_effect	remove_speed		effect_remove_speed	Hitting an enemy reduces their speed by x%. The max removed amount can be changed (eg Ugly Tooth is max of -30%)	Ugly Tooth
replace_effect	double_hp_regen_below_half_health		effect_double_hp_regen_below_half_health		Regeneration Potion
replace_effect	minimum_weapons_in_shop		effect_minimum_weapon_in_shop		Arms Dealer
replace_effect	weapon_slot		effect_no_weapons		Bull
replace_effect	hp_shop		effect_hp_shop		Demon
replace_effect	trees_start_wave		not specified	Sets the first wave that Trees can spawn on.	Explorer
replace_effect	max_melee_weapons		effect_generalist		Generalist
replace_effect	max_ranged_weapons		[EMPTY]		Generalist
replace_effect	dodge_cap		effect_dodge_cap		Ghost
replace_effect	weapon_slot		effect_max_weapons		Multitasker
replace_effect	can_attack_while_moving		effect_cant_attack_while_moving		Soldier
replace_effect	double_boss		effect_double_boss		Danger 5
starting_item_effect	starting_item		effect_starting_item		Brawler, Crazy, Engineer, Mage, Pacifist, Ranger, Saver, Wildling,
stat_effect	stat_armor		effect_stat_while_not_moving		Barricade
stat_effect	stat_dodge		effect_stat_while_not_moving		Chameleon
stat_effect	gold_on_crit_kill		effect_gold_on_crit_kill		Hunting Trophy
stat_effect	stat_attack_speed		effect_stat_while_not_moving		Statue
stat_effect	stat_percent_damage		effect_on_hit		Triangle of Power
stat_effect	stat_percent_damage		effect_gain_stat_end_of_wave		Vigilante Ring
stat_effect	stat_percent_damage		effect_stack_stat		Wisdom
stat_effect	stat_max_hp		effect_gain_stat_end_of_wave		Grind's Magical Leaf
stat_effect	stat_hp_regeneration		effect_gain_stat_end_of_wave
stat_effect	stat_lifesteal		effect_gain_stat_end_of_wave
stat_gains_modification_effect	effect_increase_stat_gains		not specified		Many characters
stat_gains_modification_effect	effect_reduce_stat_gains		not specified		Many characters
structure_effect	not specified		effect_landmines		Landmines Screwdriver
tier_effect	min_weapon_tier		effect_min_weapon_tier		Knight
tier_effect	max_weapon_tier		effect_max_weapon_tier		Wildling
turret_effect	not specified		effect_turret		Turret Wrench
turret_effect	not specified		effect_turret_healing		Medical Turret
turret_effect	not specified		effect_turret_laser		Laser Turret
turret_effect	not specified		effect_turret_rocket		Explosive Turret
turret_effect	not specified		effect_tyler		Tyler
turret_effect	wandering_bot		effect_wandering_bot		Wandering Bot
turret_flame_effect	not specified		effect_turret_flame		Incendiary Turret Wrench (Tier 2)
unique_weapon_effect	stat_attack_speed		effect_unique_weapon_bonus		Focus
unique_weapon_effect	stat_attack_speed		effect_unique_weapon_bonus		Spider
weapon_bonus_effect	???		???		unused
weapon_gain_effect	???		???		unused

Other effects (TODO):

• chance_stat_damage_effect
• stat_cap_effect
• stat_with_max_effect

Weapon Effects

Stored in res://effects/weapons/*.gd

Like Item Effects above, some of these can be used by items/characters.

Effect File (*.gd)	key	Used By
burning_effect	effect_burning	Flame Turret, Flaming Knuckles, Torch, Flamethrower, Wand
exploding_effect	effect_explode_melee	Plank, Plasma Sledgehammer, Power Fist, Nuclear Launcher, Shredder
gain_stat_every_killed_enemies_effect	effect_gain_stat_every_killed_enemies	Ghost Axe, Ghost Flint, Ghost Scepter
projectiles_on_hit_effect	effect_projectiles_on_hit	Cactus Mace, Sniper Gun
projectiles_on_hit_effect	effect_lightning_on_hit	Lightning Shiv
projectiles_on_hit_effect	effect_slow_projectiles_on_hit	Thunder Sword
slow_in_zone_effect	effect_slow_in_zone	Taser
weapon_stack_effect	effect_weapon_stack	Stick

Danger Effects

Effect File (*.gd)	Key	Danger	Notes
effects/weapons/null_effect.gd	effect_no_modifiers	Danger 0	-
effects/weapons/null_effect.gd	effect_new_enemies	Danger 1+	There's no code directly related to this key
effects/weapons/null_effect.gd	effect_elites	Danger 2+	There's no code directly related to this key
items/global/effect.gd	enemy_strength	Danger 3	Text key is EFFECT_STRONGER_ENEMIES, value is: 12
items/global/effect.gd	enemy_strength	Danger 4	Text key is EFFECT_STRONGER_ENEMIES, value is: 26
effects/weapons/null_effect.gd	effect_more_elites	Danger 4+	There's no code directly related to this key
items/global/effect.gd	enemy_strength	Danger 5	Text key is EFFECT_STRONGER_ENEMIES, value is: 40
effects/items/replace_effect.gd	double_boss	Danger 5	Text key is effect_double_boss

List of Effect Keys

This section lists most of the effect keys, taken from the effect init arrays in run_data.gd (init_tracked_effects & init_effects).

Many of these can be applied with effect.gd (res://items/global/effect.gd).

See Stats > Secondary Stats for a list of the items these effects can apply to.

Primary Stats

Effect Key	Notes
stat_max_hp	Max HP
stat_hp_regeneration	HP Regeneration
stat_lifesteal	Life Steal
stat_percent_damage	Damage
stat_melee_damage	Melee Damage
stat_ranged_damage	Ranged Damage
stat_elemental_damage	Elemental Damage
stat_attack_speed	Attack Speed
stat_crit_chance	Crit Chance
stat_engineering	Engineering
stat_range	Range
stat_armor	Armor
stat_dodge	Dodge
stat_speed	Speed
stat_luck	Luck
stat_harvesting	Harvesting

Misc

Some of these are repeated from above, others are only set with effect_key. Search the decompiled project for effect_key to find the latter.

List of effects via: res://singletons/run_data.gd > func init_effects

Also try searching: RunData.effects["effect_key"] (replace effect_key with a key).

See also: List of %/flat stat text modifiers: res://singletons/text.gd

key	text_key	Description	Used In (effect file, *.tres)
additional_weapon_effects	effect_additional_weapon_bonus	Changes a stat (key) based on how many weapons you have	multitasker_effect_2 [effect_key]
bounce	effect_bouncing	Adds bouncing to all projectiles	ricochet_effect_1
bounce_damage	none	Increase bounce damage by x. Can't exceed the base damage.	arms_dealer_effect_1b, engineer_effect_4, farmer_effect_4, one_arm_effect_2
burn_chance	effect_burn_chance	Chance to inflict burn. Needs a corresponding burning_data stats file	scared_sausage_effect_1
burning_cooldown_reduction	effect_burning_cooldown_reduction	Makes burning tick faster	eye_surgery_effect_1
burning_spread	effect_burning_spread	Makes burning spread to +x more enemies	snake_effect_1
can_attack_while_moving	effect_cant_attack_while_moving	Set to 0 to prevent attacks while moving	soldier_effect_5
cant_stop_moving	---	Set to 1 to stop the player from being able to stop moving. Used in Invasion's "Pants Ant" item	Unused, but appears to have some code that supports it.
chance_double_gold	effect_chance_double_gold	% chance to double materials when they're collected	metal_detector_effect_1
class_bonus_effect	effect_weapon_class_bonus	Grants a bonus to a specific stat (stat_name) when using a specific weapon class (weapon_class)	brawler_effect_1, crazy_effect_1, doctor_effect_1, ghost_effect_1, wildling_effect_1
consumable_heal	effect_consumable_heal	Increase HP gained from consumables	alien_worm_effect_2, lemonade_effect_1, weird_food_effect_1, chunky_effect_3, chopper_effect, chopper_4_effect
convert_stats_end_of_wave	effect_convert_stat_end_of_wave	Converts a stat (key) to another stat (to_stat) when a wave ends	demon_effect_1
destroy_weapons		Removes all held weapons when you enter a shop	arms_dealer_effect_3
diff_gold_drops	---	Appears to increase/decrease the chance for enemies to drop materials by %	Unused, but appears to have some code that supports it.
dmg_when_death_from_luck	effect_deal_dmg_when_death	% chance to deal a % of luck as damage, when an enemy dies. Accepts a stat option, but only scales with Luck, ignoring the stat you specify	cyberball_effect_1
dmg_when_pickup_gold_from_luck	effect_deal_dmg_when_pickup_gold	% chance to deal a % of luck as damage, when you collect a material. As above, accepts a stat but only scales with Luck	baby_elephant_effect_1, lucky_effect_3
dodge_cap	effect_dodge_cap	Increases/decreases the dodge cap by a %. Warning: This increases the cap, it doesn't overwrite it. So you'll probably need to add a condition to check for Ghost (or just check the current cap). Default is 60% (or 90% with Ghost).	ghost_effect_3
double_boss	effect_double_boss	Makes 2 bosses spawn instead of 1	difficulty_5_effect_4
double_hp_regen	effect_double_hp_regen	Makes HP Regeneration trigger twice as often	doctor_effect_3
double_hp_regen_below_half_health	effect_double_hp_regen_below_half_health	Makes HP Regeneration trigger twice as often, when you're below 50% HP	potion_effect_1
enemy_gold_drops	effect_enemy_gold_drops	Change the amount of materials dropped by enemies. This is an int (eg -50), not a float (eg -0.5). See also: gold_drops, neutral_gold_drops	explorer_effect_8
enemy_speed	---	Change enemy movement speed	+: alien_baby_effect_2, explorer_effect_9
			-: snail_effect_1, old_effect_1
enemy_strength	effect_stronger_enemies	Affects both enemy HP, and the damage they deal	difficulty_3_effect_2, difficulty_4_effect_2, difficulty_5_effect_2
explode_on_death	effect_explode_on_death	% chance for enemies to explode on death. Needs a corresponding weapon_stats file	rip_and_tear_effect_1
explode_on_hit	effect_explode_on_hit	Explode when you take damage. Always procs. You can set the chance%, but this is ignored	bull_effect_4
explosion_damage	none	Increases explosion damage	dynamite_effect_1, explosive_shells_effect_1, etc
explosion_size	none	Increases explosion size	plastic_explosive_effect_1, artificer_effect_1b
free_rerolls	effect_free_shop_reroll	Adds free rerolls. Can't be negative	dangerous_bunny_effect_0
gain_*		Change stat modifications by x%, eg. "Increase range modifications by 50%". Added via stat_gains_modification_effect, and applied via get_stat_gain.	See RunData.effects["gain_" + stat]
gain_pct_gold_start_wave	effect_gain_pct_gold_start_wave	Gain/lose +x% of your materials when a wave starts.	piggy_bank_effect_1
gold_drops	effect_enemy_gold_drops	Changes % of dropped materials. Int, not a float. See also: enemy_gold_drops; neutral_gold_drops	explorer_effect_8, farmer_effect_3, streamer_effect_2b
gold_on_crit_kill	effect_gold_on_crit_kill	Gain materials when you score a crit	hunting_trophy_effect_1, dagger_effect
group_structures	effect_group_structures	Makes structures (mines/turrets) spawn closely grouped together	engineer_effect_3
harvesting_growth	effect_harvesting_growth	Increase/decrease the % Harvesting growth. Without items it's 5% at the end of each wave. Farmer has +5, Crown has +8.	crown_effect_1, farmer_effect_2
heal_when_pickup_gold	effect_heal_when_pickup_gold	% chance to heal 1HP when you pick up materials. Can't change the healed amount, only the chance	cute_monkey_effect_1
hp_cap	effect_hp_cap_at_current_value	Changes the Max HP cap. Default is 999999. Use set_cap_to_current_max_hp=true to cap at current.	handcuffs_effect_4
hp_shop	effect_hp_shop	Changes shop items to cost Max HP, instead of materials	demon_effect_2
hp_start_next_wave	effect_hp_start_next_wave	Start the next wave with % less HP. Int, not float.	weird_ghost_effect_2
hp_start_wave	effect_start_wave_less_hp	Start ALL waves with % less HP. Int, not float.	sad_tomato_effect_2
inflation	---	Increases the cost of items (even more), based on the current wave. Inflation was removed. It was part of the original demo.
instant_gold_attracting	effect_instant_gold_attracting	% chance to attract dropped materials	baby_gecko_effect_1, sifds_relic_effect_1
item_box_gold	effect_item_box_gold	+x materials when you pick up a Crate	bag_effect_1
items_price	none	Change shop item costs by x%	coupon_effect_1, entrepreneur_effect_0, mutant_effect_2, saver_effect_4
knockback	effect_knockback	Add/reduce knockback for all weapons by x	boxing_glove_effect_1
lose_hp_per_second	effect_lose_hp_per_second	HP is reduced by -x every second	blood_donation_effect_2, sick_effect_3
map_size	none	Increase/decrease the map size by x%	explorer_effect_6, old_effect_3
max_melee_weapons	effect_generalist	Set the max number of held melee weapons to x	generalist_effect_3
max_ranged_weapons	[EMPTY]	Set the max number of held ranged weapons to x	generalist_effect_4
max_weapon_tier	effect_max_weapon_tier	Set the max tier for weapons to 1/2/3/4. Zero-based, so 0 = tier 1, 1 = tier 2, etc.	wildling_effect_3
min_weapon_tier	effect_min_weapon_tier	Set the min tier for weapons to 1/2/3/4. Zero based (see above)	knight_effect_4
neutral_gold_drops	none	Increases materials from EntityType.NEUTRAL by +x% (ie. trees) See also: gold_drops; enemy_gold_drops	Unused, but supported in the code
no_melee_weapons	effect_no_melee_weapons	Stops melee weapons appearing in the shop. Doesn't remove weapons that are already held.	ranger_effect_5
no_min_range	none	If 1, the min_range of a weapon is used. Useless in vanilla because all weapons have a min_range of 0.	Unused, but supported in the code
no_ranged_weapons	effect_no_ranged_weapons	Stops ranged weapons appearing in the shop. Doesn't remove weapons that are already held.	gladiator_effect_3, knight_effect_3
number_of_enemies	none	Increase/decrease the number of enemies that spawn, when a group of them spawns	candle_effect_3, gentle_alien_effect_2, mouse_effect_2, white_flag_effect_2, explorer_effect_7, loud_effect_2, old_effect_4
one_shot_trees	effect_one_shot_trees	Makes trees get destroyed in 1 hit	lumberjack_shirt_effect_1
pacifist	effect_pacifist	Gain x% materials and XP per living enemy when a wave ends. No effect if 0 or below.	pacifist_effect_2
pickup_range	effect_pickup_range	Change pickup range by x%	alien_tongue_effect_1, gnome_effect_4, little_frog_effect_1, explorer_effect_4, soldier_effect_3
piercing	effect_piercing	Adds +1 piercing to all projectiles	bandana_effect_1
piercing_damage	effect_piercing_damage	Bounce damage. Can't exceed the base damage.	pumpkin_effect_1, arms_dealer_effect_1b, engineer_effect_4, farmer_effect_4, one_arm_effect_2
projectiles_on_death	effect_projectiles_on_death	Spawns projectiles when an enemy dies. Requires an associated projectile stats data (.tres) file. The .tres can be custom, or you can use the default base_ranged_weapon_stats.tres	baby_with_a_beard_effect_1
recycling_gains	effect_recycling_gains	Increase gains from recycling. Recycling Machine = +35%, Entrepreneur = +25% (total: +60%, so realistically you'd need to use set this to <40 to avoid an infinite money exploit with Entrepreneur and Recycling Machine)	recycling_machine_effect_1, entrepreneur_effect_2
remove_speed	effect_remove_speed	Hitting an enemy reduces their speed by x%. The max removed amount can be changed (eg Ugly Tooth is max of -30%)	ugly_tooth_effect_1
starting_item	effect_starting_item	Sets a starting item for a character	Many characters, too many to list
stat_links	n/a	Seems to be used by gain_stat_for_every_stat_effect.gd, to associate one stat with another (eg. gain X per y). Linked stats can be: General stats (stat_max_hp etc), "materials", "structure" (number of structures) and "living_enemy".
stats_end_of_wave	effect_gain_stat_end_of_wave	Gain stats when the wave ends	grinds_magical_leaf_effect_* (all 3), vigilante_ring_effect_1
structures	n/a	Array of structures. Should not be modified outside of struture_effect.gd.	via: structure_effect via: gain_stat_for_every_stat_effect
temp_stats_on_hit	effect_on_hit	Gain temporary stats when you take damage, until the end of the wave. Only works with the core stats ("stat_*"), plus explosion_size and explosion_damage. See temp_stats.gd for the full list.	triangle_of_power_effect_3, masochist_effect_1
temp_stats_stacking	effect_stack_stat	Gain temporary stats every 5 seconds, until the end of the wave. Can't change the timer, fixed to 5sec. Ticks 4 times in a 20sec wave (1), 12 times in a 60sec wave (9), 18 times in a 90sec wave (10+).	wisdom_effect_1
temp_stats_while_not_moving	effect_stat_while_not_moving	Gain temporary stats when you stand still, until you move again. Lasts until the wave ends.	barricade_effect_1, chameleon_effect_1, statue_effect_1, soldier_effect_1, soldier_effect_2, speedy_effect_3, streamer_effect_1
torture	effect_torture	Stops you healing in any way. Gain +x HP per second instead	torture_effect_2
trees	effect_trees	Increases the number of tress that can spawn at once.	tree_effect_1, explorer_effect_1
trees_start_wave	[EMPTY]	Either makes trees spawn more often, or makes trees spawn in immediately after starting a wave (see _physics_process in wave_manager.gd)	explorer_effect_11
unique_weapon_effects	effect_unique_weapon_bonus	Gain stats based on the number of unique weapons	focus_effect_2, spider_effect_2
weapon_bonus	effect_additional_weapon_bonus	Gain stats based on the number of weapons you currently hold	focus_effect_2, spider_effect_2, gladiator_effect_1, multitasker_effect_2
weapon_class_bonus	n/a	Gain bonus stats based on the number of held weapons in the specified class	brawler_effect_1, crazy_effect_1, doctor_effect_1, ghost_effect_1, wildling_effect_1 see: effect_weapon_class_bonus
weapon_slot	effect_no_weapons effect_max_weapons	Set the number of weapon slots to x	bull, multitasker, one arm
xp_gain	none	Increase/decrease XP gain by x%	bean_teacher_effect_1, black_belt_effect_1, diploma_effect_2, scar_effect_1 mutant_effect_1

Note: These effects are listed in run_data, but don't do anything: gambler, leave_burning, wandering_bots.

Added in v0.6.1.6

• double_hp_regen_below_half_health
• hit_protection
• minimum_weapons_in_shop
• percent_materials (only works with temp_stats_while_not_moving)
• temp_stats_while_moving
• upgrade_random_weapon
• weapons_price

Added in v0.8.0.3

View more details in: Patch 0.8.0.3/Modding Changes

Key	Text	Description	Item(s)	Characters
consumable_stats_while_max	EFFECT_CONSUMABLE_STAT_WHILE_MAX EFFECT_CONSUMABLE_STAT_WHILE_MAX_LIMITED	Gain stats if you collect consumables at max HP	Extra Stomach	Farmer, Glutton
convert_stats_half_wave	EFFECT_CONVERT_STAT_TEMP_HALF_WAVE	Converts stats halfway through the wave	>	Cyborg
damage_against_bosses	effect_damage_against_bosses	Deal % more/less damage against elites/bosses	Silver Bullet	Jack
dmg_on_dodge	EFFECT_DEAL_DMG_WHEN_DODGE	Deal damage when you dodge (Chance%)	Riposte	-
dmg_when_death	EFFECT_DEAL_DMG_WHEN_DEATH	Damage a random enemy when another enemy dies (Chance%)	Cyberball	-
dmg_when_heal	EFFECT_DEAL_DMG_WHEN_HEAL	Damage a random enemy when you heal (Chance%)	>	Lich
dmg_when_pickup_gold	EFFECT_DEAL_DMG_WHEN_PICKUP_GOLD	Damage a random enemy when you collect a material	Baby Elephant	Lucky
enemy_damage	-	Deal % more/less damage against enemies (not elites/bosses)	Peacock	Jack
enemy_health	-	Enemies have % more/less HP	>	Jack
explode_on_consumable	effect_explode_on_consumable	Explode when you collect a consumable (Chance%)	Spicy Sauce	Glutton
extra_enemies_next_wave	effect_extra_enemies_next_wave	Lamprey enemies will span at the start of the next wave	Bait	-
giant_crit_damage	effect_giant_crit_damage	Crits deal % of an enemy's HP as bnus damage	Giant Belt	-
heal_on_crit_kill	effect_heal_on_crit_kill	Heal 1 HP when killing an enemy with a critical hit (Chance%)	Tentacle	-
heal_on_dodge	EFFECT_HEAL_WHEN_DODGE	Heal x HP when you dodge (%Chance)	Adrenaline	-
starting_weapon	effect_starting_item	Starting weapon for characters. Key is the weapon's my_id	>	Brawler, Crazy, Cyborg, Engineer, Ranger, Wildling
stats_next_wave	effect_stat_next_wave	Change stats, for the next wave only	Peacock	-
structures_cooldown_reduction	effect_structures_cooldown_reduction	Reduces the attack cooldown of your structures by x (scales with stat specified with key)	Improved Tools	-
temp_pct_stats_stacking	None	(Needs confirming:) Similar to temp_stats_stacking, but increases stat x by y% every 5 seconds, until the end of the wave	None	-
temp_pct_stats_start_wave	None	(Needs confirming:) Increase stat x by y% at the start of a wave.	None	-
upgrade_random_weapon	effect_upgrade_random_weapon	See Anvil. The stat that gets increased if all weapons are maxed can be chanegd with key.	Anvil

Added in v1.0.0.3

View more details in: Modding Changes for 1.0.0.3

Key	Text Key	Description	Values	Notes	Used By
accuracy	EFFECT_ACCURACY	+/-x % accuracy	Number (%)		Renegade
cryptid	effect_cryptid	Gain {0} material and XP for every living tree at the end of a wave	Number (int)		Cryptid
extra_loot_aliens_next_wave	effect_extra_loot_aliens_next_wave	+x additional loot aliens appear during the next wave	Number (int)	Applied with custom_key	Lure
guaranteed_shop_items	effect_guaranteed_shop_item	Shops always sell x	Key = Item ID	Applied with custom_key	Fisherman
no_heal	effect_no_heal	You can't heal in any way	Bool (0/1)		Golem
projectiles	EFFECT_PROJECTILES	+x projectiles	Number (int)		Renegade
specific_items_price	EFFECT_SPECIFIC_ITEM_PRICE	+/- x price	Key = Item ID	Applied with custom_key	Fisherman
stats_below_half_health	effect_stat_below_half_health	{STAT/VALUE} when you have less than 50% health	Key = stat	Applied with custom_key	Golem
stats_on_level_up	EFFECT_STAT_ON_LEVEL_UP	{STAT/VALUE} when you level up	Key = stat	Applied with custom_key	Apprentice
temp_stats_on_dodge	EFFECT_TEMP_STAT_ON_DODGE	{STAT/VALUE} when you dodge	Key = stat	Applied with custom_key	Cryptid
tier_i_weapon_effects	EFFECT_TIER_I_WEAPON_BONUS	{STAT/VALUE} for every Tier 1 weapon	Key = stat	Applied with custom_key	King
tier_iv_weapon_effects	EFFECT_TIER_IV_WEAPON_BONUS	{STAT/VALUE} for every Tier 4 weapon	Key = stat	Applied with custom_key	King
tree_turrets	EFFECT_TREE_TURRET	Killing a tree spawns a turret	Bool (0/1)		Pocket Factory
upgraded_baits	effect_upgraded_baits	Baits make special enemies spawn in all future waves	Bool (0/1)		Fisherman
special_enemies_last_wave	UNUSED	UNUSED	UNUSED	UNUSED	UNUSED