Killing Floor

From PCGamingWiki, the wiki about fixing PC games
Killing Floor
Killing Floor cover
Tripwire Interactive
macOS (OS X) Ryan C. Gordon
Linux Ryan C. Gordon
Tripwire Interactive
Unreal Engine 2.5
Release dates
Windows May 14, 2009
OS X May 5, 2010
Linux November 9, 2012
Killing Floor
Killing Floor 2009
Killing Floor 2 2016

Key points

Works well on low end computers
Steam Workshop integration.
Game manual is located in <path-to-game>/Help

General information

Official game site
Unofficial Killing Floor Wiki
Steam Community Discussions
Steam Users' Forums


All versions require Steam DRM.

Downloadable content (DLC) and expansions

Name Notes
Reggie the Rocker Character Pack
Community Weapons Pack 3 - Us Versus Them Total Conflict Pack
Camo Weapon Pack
Community Weapon Pack 2
Golden Weapon Pack 2
Mrs Foster Pack
Golden Weapons Pack
Robot Special Character Pack
Community Weapon Pack
The Chickenator Pack
Ash Harding Character Pack
Harold Lott Character Pack
Urban Nightmare Character Pack
Steampunk Character Pack 2
Steampunk Character Pack
London's Finest" Character Pack
PostMortem Character Pack
Nightfall Character Pack
Outbreak Character Pack
Neon Character Pack
Neon Weapon Pack

Game data[edit]

In-game general settings.
In-game general settings.
In-game HUD settings.
In-game HUD settings.
Save games are hosted in the Steam Cloud and thus unreachable from your computer.[1]

Configuration file(s) location[edit]

System Location
Windows <path-to-game>\System\
macOS (OS X) ~/Library/Application Support/Killing Floor/
Linux ~/.killingfloor/
KillingFloor.ini stores audio, general, network, video settings
User.ini stores button bindings, FoV, HUD configuration
This game does not follow the XDG Base Directory Specification on Linux.

Save game cloud syncing[edit]

System Native Notes
Steam Cloud
Only syncs saves.

Video settings[edit]

In-game video settings.
In-game video settings.
Graphics option Option WSGF Notes
Widescreen resolution
See Multi-monitor.
4K Ultra HD
Max resolution is 2560x1600
Field of view (FOV)
Using the console type in fov # where # is your degree of FOV[2]
Windowed mode on startup may make main menu unreadable.[3]
Borderless fullscreen windowed
See Borderless fullscreen windowed.
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
60 FPS
120+ FPS
Frame rate in multiplayer is locked to 91 FPS, unlocked in singleplayer.[4]


Set resolution[5]
  1. Go to the configuration file(s) location.
  2. Edit KillingFloor.ini.
  3. Find these lines and edit them to fit your desired resolution:

Borderless fullscreen windowed[edit]

Run in borderless window[6]
  1. Install Borderless Gaming.
  2. Open the game and Borderless Gaming.
  3. Add the Killing Floor entry to Favorites in Borderless Gaming.
  4. Right-click the favorites entry and disable Auto-Maximize.
  5. In the game, set the resolution and disable Full Screen.

Input settings[edit]

In-game control settings.
In-game control settings.
In-game key map settings.
In-game key map settings.
Keyboard and mouse Native Notes
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support
Joystick input is ignored when fire is pressed; fixed by pressing another button or moving mouse after pressing fire
Full controller support
Controller remapping
Needs to be mapped via User.ini.
Controller sensitivity
Controller Y-axis inversion
Needs to be set via User.ini.
Additional information
Button prompts
Controller hotplugging
Haptic feedback

Audio settings[edit]

In-game audio settings.
In-game audio settings.
Audio options Native Notes
Separate volume controls
Effects, music, voice chat
Surround sound
Auto configures up to 7.0 output[7]
Closed captions
Mute on focus lost
EAX support
EAX 3[8]


Language UI Audio CC Notes


Multiplayer types

Type Native Players Notes
LAN play
6 Co-op
Online play
6 Co-op
Hackable to higher number of players.[citation needed]

Connection types

Type Native Notes
See this forum post for information on hosting a Killing Floor server on Windows.
Direct IP
Open the console (~) and enter open followed by the IP and port.


Protocol Port(s) and/or port range(s)
TCP (outbound) 8075, 28852
UDP (outbound) 7707, 7708, 7717, 20560, 28852
Another setting you might have to deal with when hosting a listen server in your killingfloor.ini is 'ServerBehindNAT=False' Set it to True

Issues fixed[edit]

Crash to desktop[edit]

Enable Compatibility for Killing Floor.exe[citation needed]
  1. Go into System in the installation folder.
  2. Right-click Killing Floor.exe and choose Properties.
  3. Go to the Compatibility tab.
  4. Check the boxes next to Disable visual themes and Disable desktop composition.


Use the -windowed property[citation needed]
  1. Find Killing Floor in your Steam Library
  2. Right click on game and select Properties
  3. Select Set Launch Options
  4. Enter -windowed into the dialogue.
  5. Click OK
  6. Start the game and it should be fixed
Once the game starts, you can then maximize the window to play full screen
This issue can also be caused by playing the game in a non-native resolution, meaning the pixel size your screen is set at.

No Online Games/0 Servers from Master list[edit]

Delete your ClientRegistry.blob file[citation needed]
  1. Exit Steam.
  2. Go to C:\Program Files (x86)\Steam
  3. Delete ClientRegistry.blob
  4. Open Steam again and relaunch the game.

Re-enable gore[edit]

Depending on your version of the game, Killing Floor can have gore disabled. This fix re-enables gore.
Manually re-enable gore[citation needed]
  1. Start the game at least once, so it can create all configuration files.
  2. Go to <path-to-game>
  3. Open System\KillingFloor.ini
  4. Search for the line [Engine.Engine]
  5. Add bdevgoreoverride=True on a new line at the bottom of the [Engine.Engine] configuration block.
  6. Save the file, restart Steam and enjoy your uncut game.

Main menu unreadable in windowed mode[edit]

The main menu may be unreadable when starting the game in windowed mode. Switch to fullscreen mode.[3]

Other information[edit]


Technical specs Supported Notes
Direct3D 8, 9
OpenGL 2.1
Shader Model support 2
64-bit executable
OS X and Linux only.[citation needed]


Middleware Notes
Physics Karma
Audio Miles Sound System, OpenAL, Speex
Cutscenes Bink Video
Multiplayer Steamworks

Console commands[edit]

The full list of console commands available for Killing Floor is listed on the "Console Commands" page on the Killing Floor Wiki.

System requirements[edit]

Minimum Recommended
Operating system (OS) XP, Vista
Processor (CPU) 1.2 GHz 2.4 GHz
System memory (RAM) 512 MB 1 GB
Hard disk drive (HDD) 2 GB 5.5 GB
Video card (GPU) 64 MB of VRAM
DirectX 9 compatible
128 MB of VRAM
DirectX 9 compatible
Operating system (OS) 10.5.8, 10.6.3
Processor (CPU) Intel
System memory (RAM)
Hard disk drive (HDD) 2 GB
Video card (GPU) Nvidia
Minimum Recommended
Operating system (OS) Ubuntu 12.04
Processor (CPU) 1.2 GHz 2.4 GHz
System memory (RAM) 1 GB 2 GB
Hard disk drive (HDD) 2 GB
Video card (GPU) Nvidia
While Intel GPUs are not supported, the game is playable with one.


  1. Killing Floor Save Data - Killing Floor Support Forum
  2. FOV change? - Steam Users' Forums (retrieved)
  3. 3.0 3.1 Anyone know a fix for this main menu bug? : killingfloor
  4. Verified by User:Mars icecream on 2017-2
  5. Killing Floor | WSGF
  6. Problems with Killing Floor and Possibly Title-less Windows · Issue #93 · Codeusa/Borderless-Gaming - last accessed on 2017-04-12
  7. PC Gaming Surround Sound Round-up
  8. 3D audio vs H/W 3D Audio vs +EAX - Epic Games Forums