Ordered by installs · Not tested by us
The 20 most-installed Killing Floor mods (2026)
Ordered by Steam Workshop subscriptions, which is a count from Valve rather than a judgement from us. We have not installed these, and say so rather than implying a verdict we have not earned. Everything here installs by clicking Subscribe.
The short version
- Most installed: KF-Leveling-PerkyV5_1059fix (and 100p version), 100,440 subscribers.
- 0 of 20 updated since the start of 2025, which matters more than subscriber count for whether a mod still works.
- All install through Steam. Subscribe on Workshop and the game picks it up on next launch. Nothing to unzip.
All 20, most installed first
MapUpdated 15 July 2014
MutatorGameplaySingleplayerFeatureUIToolMultiplayerUpdated 17 February 2013
MapSingleplayerCo-opMultiplayerUpdated 29 April 2017
MutatorStoryGameplayAlternate SkinSingleplayerFeatureUICharacterToolCo-opMultiplayerUpdated 11 April 2015
MapUpdated 2 January 2015
MapCo-opMultiplayerUpdated 4 February 2013
Updated 19 October 2012
MutatorUpdated 27 September 2012
MutatorMultiplayerWeaponSingleplayerUpdated 11 November 2012
MapSingleplayerWaveMultiplayerUpdated 8 December 2013
MapSingleplayerMultiplayerUpdated 31 August 2014
MutatorUpdated 24 September 2012
MutatorWeaponUpdated 15 June 2013
MutatorWeaponUpdated 18 May 2013
MutatorWeaponUpdated 26 October 2013
MutatorMapUpdated 25 September 2012
MutatorAlternate SkinTotal ConversionUpdated 8 February 2013
MutatorGametypeAlternate SkinWeaponSingleplayerFeatureWaveZedsCreaturesTotal ConversionCharacterClothing/GearCo-opMultiplayerUpdated 6 February 2013
MutatorUpdated 26 September 2012
MutatorUpdated 24 September 2012
Subscriber counts and approval scores are Valve's, read on 5 September 2026 and not adjusted by us. Browse the full Workshop.
Common questions
What is the best Killing Floor mod?
By installs, KF-Leveling-PerkyV5_1059fix (and 100p version), with 100,440 Steam Workshop subscribers. That is the most-installed rather than the best: subscriber count measures how many people tried it, not whether they kept it. Workshop's own approval score is shown next to each one where Valve publishes it.
How do I install Killing Floor mods?
Everything on this page is a Steam Workshop item, so installing means clicking Subscribe on its Workshop page and letting Steam download it the next time you launch the game. There is nothing to unzip and no files to move. Unsubscribing removes it. Mods from outside Workshop work differently and are not covered here.
Are these Killing Floor mods safe?
They are hosted by Valve and distributed through Steam, which is a meaningfully lower risk than downloading files from elsewhere, but Valve does not audit mod code. We have not run any of them. Treat a mod with a large subscriber count and a recent update as better evidence than one with neither.
How is this list ordered?
By Steam Workshop subscriptions, highest first, read on 5 September 2026. That is a count from Valve, not a judgement from us. We have not ranked these by quality and do not have the basis to: nobody here has installed all 20.
Do you get paid for these?
No. Mod authors are not paid by us and cannot pay for a position here. The order is Valve’s subscriber count and nothing else.