PCGame

Killing Floor

Co-op survival horror FPS built around punishing monster waves

Tripwire Interactive · Released May 14, 2009

Action

Reviews
Overwhelmingly Positive
95% of 42K
Recent reviews
Very Positive
92% of 114 in 30 days
Players
232
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
10 years ago
Apr 19, 2016
Minimum PC
64 MB DX9 Compliant
1 GB RAM · 2 GB disk
Full requirements

Metacritic: 72/100 (critic reviews)

What is Killing Floor?

Set in devastated English cities and countryside after military cloning experiments fail, this first-person survival horror shooter pits soldiers against waves of hostile specimens. In solo or co-op matches, you shoot creatures, choose role-based perks, use medical tools, and weld doors to redirect hordes across open, nonlinear maps.

For you if...

  • +you enjoy tense, team-based wave survival
  • +you prefer dark horror atmosphere and slower-paced gunfights
  • +you want both offline solo play and six-player co-op

Not for you if...

  • −you dislike repeated waves and punishing difficulty
  • −you prefer story-led campaigns over survival matches
  • −you avoid graphic violence and gore

What players say

95% of 42,243 reviews are positive · 92% of 114 in the last 30 days

Players praise the dark atmosphere, tense wave survival, teamwork, and variety of maps and mods. Common complaints include a sparse online population and unreliable multiplayer, with connection errors, awkward server hosting, and reported attacks on servers; some players also find the controls and presentation dated.

Players over time

▲ +7% vs a month ago

Players online on Steam, one sample a day.

Highest since Sep 2026: 357 players on Oct 25, 2026.

Show the data
DayPlayers
Nov 7, 2026232
Nov 6, 2026208
Nov 5, 2026211
Nov 4, 2026193
Nov 3, 2026232
Nov 2, 2026249
Nov 1, 2026261
Oct 31, 2026277
Oct 30, 2026195
Oct 29, 2026244
Oct 28, 2026182
Oct 27, 2026130
Oct 27, 2026204
Oct 26, 2026279
Oct 25, 2026357
Oct 24, 2026275
Oct 23, 2026152
Oct 22, 20260
Oct 21, 2026163
Oct 20, 2026164
Oct 19, 2026169
Oct 18, 2026212
Oct 17, 2026203
Oct 16, 2026145
Oct 15, 2026158
Oct 14, 2026183
Oct 13, 2026191
Oct 12, 2026225
Oct 11, 2026225
Oct 10, 2026192
Oct 9, 2026212
Oct 8, 2026187
Oct 7, 2026184
Oct 6, 2026195
Oct 5, 2026290
Oct 4, 2026243
Oct 3, 2026203
Oct 2, 2026171
Oct 1, 2026149
Sep 30, 2026165
Sep 29, 2026156
Sep 28, 2026203
Sep 27, 2026209
Sep 26, 2026184
Sep 25, 2026164
Sep 24, 2026177
Sep 23, 2026104
Sep 23, 2026150
Sep 22, 2026166
Sep 21, 2026166

Screenshots and trailer

Killing Floor screenshot 1

Killing Floor system requirements

Minimum: 64 MB DX9 Compliant, 1 GB RAM, 2 GB of disk space.

As published by the developer.

Can my PC run Killing Floor?

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Minimum

OS
Windows XP/Vista
Processor
1.2 GHZ or Equivalent
Graphics
64 MB DX9 Compliant
Memory
1 GB RAM
Storage
2 GB free hard drive space

Recommended

OS
Windows XP/Vista
Processor
2.4 GHZ or Equivalent
Graphics
128 MB DX9 Compliant with PS 2.0 support
Memory
2 GB RAM
Storage
2 GB free hard drive space

Does Killing Floor have co-op or multiplayer?

Yes: co-op (mode not specified). It also has a single-player mode. Crossplay with other platforms is declared.

Does Killing Floor run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Default controller config not fully functional
  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • In-game text is legible on Steam Deck
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows, macOS, Linux
Achievements
285
Steam features
Workshop, Family Sharing, Trading cards
Age rating
17+
Languages
Full audio: English, French, Italian, German, Spanish - Spain, Russian. Text only: Hungarian, Polish.

Does Killing Floor use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Nov 6, 2026. How to filter AI games on Steam

Tags

Recent updates

21 DLC available.

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