List of mutators (Killing Floor)

Official and whitelisted mutators

Name	Status	Type	Effect	Link
Killing Floor Mut	Official	Default	Originally used by developers, Default/Standard game mode.
No Karma Decorations	Official	Aesthetic	Removes Karma Decorations from the map.
No Trader	Official	Gameplay	Trader doors stay shut the entire game.
Corpses Everywhere	Whitelisted	Aesthetic	Makes dead specimens stay until the end of the round.	[1]
Random Map	Whitelisted	Server	Automatically selects a random map to play on.	[2]
Anti Blocker	Whitelisted	Gameplay	Turns off player collision during trader time so nobody can block you.	[3]
No Drama Mutator	Whitelisted	Gameplay	Disables ZED time.	[4]
Server Ads SE	Whitelisted	Server	Displays custom server messages.	[5]
Auto Change Maps	Whitelisted	Server	Auto Change Maps in set list.
Server Ext	Whitelisted	Server	Useful server tools.	[6]
XBan	Whitelisted	Server	Advanced ban options.	[7]
Mirror Friendly Fire	Whitelisted	Gameplay	The damage that a player does to his teammates will be mirrored and will decrease his own damage by exactly that percentage he did.	[8]
Hellfire	Whitelisted	Replacer	Only Husks will appear during a game.	[9]
KF Faked Players	Whitelisted	Gameplay	Increase zombie quantity per wave as if there are more players in the game.	[10]
KF Impossible	Whitelisted	Gameplay	Player dies instantly after taking one hit from any specimen.	[11]
KF No Dosh	Whitelisted	Gameplay	Removes money from the game.	[12]
No Kills Stats	Whitelisted	Replacer/Server	Replaces the kill counter on scoreboard with a time counter which indicates how long a player has been playing in the current round.	[13]
Patriarch HP Left	Whitelisted	Server	Shows the remaining health of patriarch when the squad is destroyed.	[14]
Manual Reloading Mutator	Whitelisted	Gameplay	Disables automatic reloading.	[15]
Items Remover aka No Big Guns	Whitelisted	Server	Gives the ability for server to ban unwanted weapons/items.	[16]
The Brute	Whitelisted	Gameplay	Adds a community made custom zed to the existing stock characters.	[17]
IJC Weapon Pack	Whitelisted	Gameplay	Adds 5 new weapons: H&K MK23, Dual H&K MK23, Horzine M7A3, Barrett M99, FN Fal.	[18]
KF IRC Bot	Whitelisted	Server	A mutator that joins IRC and starts reporting the current game to a channel.
Voting Handler Fix	Whitelisted	Server	Fixes some broken features on KF Voting Handler and adds a larger variety of voting options.	[19]
Specimen Kill Messages	Whitelisted	Server	Displays small kill messages on your screen as you kill specimen.	[20]
Country tags	Whitelisted	Server	Adds a country tag to all player names.	[21]
Informative Scoreboard	Whitelisted	Server	Swaps with a scoreboard that has a lot more information to it i.e. player's cash, player's health (number), actual level.	[22]
Noobfilter	Whitelisted	Server	Kick Players whom are using a perk with a low level.	[23]
Door Messages	Whitelisted	Gameplay	Displays warning messages when someone hits a door with a frag grenade.	[24]
Golden 'Executioner' Handcannons	Whitelisted	Aesthetic	Reskin of the Handcannons into a golden alternative.	[25]
Chat Status	Whitelisted	Server	Shows an Icon on top of a Player when he is using Console or chat.	[26]
Bloat-ed	Official	Replacer	Only Bloats will appear during the game.
Clot Buster	Official	Replacer	Only Clots will appear during the game.
Five Alarm Siren	Official	Replacer	Only Sirens will appear during the game.
Gored Fast	Official	Replacer	Only Gorefasts will appear during the game.
Poundamonium!	Official	Replacer	Only Fleshpounds will appear during the game.
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Greylisted mutators

Name	Type	Description
KF Doom III	Content	Adds nearly all monsters from Doom 3 and Doom 3: Resurrection of Evil.	[27]
KF Weapons Pack 4.8	Content	The Killing Floor Weapon Pack adds 4 new high quality weapons to Killing Floor.	[28]
KF Bleed Out	Gameplay	This mutator makes your character slowly lose health over time.	[29]
Custom Shop Mutator	Gameplay	This mutator allows server admin to add custom weapons to the trader list.	[30]
Unsilenced MAC-10	Content	This mutator gives you the unsilenced version of the MAC-10.	[31]
Only This Specimen	Gameplay	Allows you to pick a single type of specimen for all waves including as final boss.	[32]
KF Bots	Gameplay	This mutator adds bots to accompany you against the zeds during those quiet periods.	[33]
Forced Max Players	Gameplay	This mod allows server admin to increase player count beyond the hardcoded maximum of 6. By increasing player count above 6 all Perks and Levelling features will be removed.	[34]