Killing Floor

Killing Floor

Developers
	Tripwire Interactive
macOS (OS X)	Ryan C. Gordon
Linux	Ryan C. Gordon
Publishers
	Tripwire Interactive
Engines
	Unreal Engine 2.5
Release dates
Windows	May 14, 2009
macOS (OS X)	May 5, 2010
Linux	November 9, 2012
Reception
Metacritic	72
IGDB	68

Killing Floor

KFMod (Unreal Tournament 2004 mod)	2005
Killing Floor	2009
Killing Floor Mod: Defence Alliance 2	2009
Killing Floor - Toy Master (unofficial mod)	2014
Killing Floor 2	2016
Killing Floor: Incursion	2017

Key points

Steam Workshop integration.

Game manual is located in <path-to-game>/Help

General information

Unofficial Killing Floor Wiki

Steam Community Discussions

Availability

Source	DRM	Notes	Keys	OS
Amazon.com
GamersGate
Gamesplanet
Green Man Gaming		Complete Pack also available.
Humble Store
Steam		Killing Floor 1 Complete Your Set! also available.

All versions require Steam DRM.

The original mod release can be downloaded from Mod DB. Requires Unreal Tournament 2004.

Essential improvements

Skip intro videos

Edit KillingFloor.ini Close the game. Open <path-to-game>\System\KillingFloor.ini in a text editor such as Notepad++. Ctrl+F for LocalMap=KFIntro.rom. It should be one of the first few lines. Change KFIntro.rom to KF-Menu.rom. The full line should now read LocalMap=KF-Menu.rom. This has a side effect of making the main menu look slightly broken. However, it is still entirely functional.

Skip Killing Floor 2 trailers

Delete video files Go to <path-to-game> Delete the Movies folder

Game data

In-game general settings.

In-game HUD settings.

Save games are hosted in the Steam Cloud and thus unreachable from your computer.

Configuration file(s) location

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

System	Native	Notes
Steam Cloud		Approx. 954 MB available. Steam Cloud hided.

Video

In-game video settings.

Graphics feature	State	WSGF	Notes
Widescreen resolution
Multi-monitor			See Multi-monitor.
Ultra-widescreen			Game has proper Hor+ scaling but ultrawide resolutions are not listed in-game. See Multi-monitor.
4K Ultra HD			Maximum vertical resolution is 1600p
Field of view (FOV)		Using the console type in fov # where # is your degree of FOV
Windowed		Windowed mode on startup may make main menu unreadable.
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.

Additional tweaks can be found in this guide.

Multi-monitor

Set resolution Go to the configuration file(s) location. Edit KillingFloor.ini. Find these lines and edit them to fit your desired resolution: FullscreenViewportX=5760 FullscreenViewportY=1080

Borderless fullscreen windowed

Run in borderless window Install Borderless Gaming. Open the game and Borderless Gaming. Add the Killing Floor entry to Favorites in Borderless Gaming. Right-click the favorites entry and disable Auto-Maximize. In the game, set the resolution and disable Full Screen.

Input

In-game control settings.

In-game key map settings.

Keyboard and mouse	State	Notes
Remapping
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
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
Controller hotplugging
Haptic feedback
Simultaneous controller+KB/M

Additional binding tweaks can be found here, here and here. Info on making you own bind combination can be found here (also applies to other unreal games).

Make walk toggle

Use console command set input X Toggle bRun where X is desired keystroke[citation needed] Could also manually edit the binding in <path-to-game>\System\User.ini

Audio

In-game audio settings.

Audio feature	State	Notes
Separate volume controls		Effects, music, voice chat
Surround sound		Auto configures up to 7.0 output
Subtitles
Closed captions
Mute on focus lost
EAX support		EAX 3

Localizations

Language	UI	Audio	Sub	Notes
English
French
German
Hungarian
Italian
Polish
Russian
Spanish

Network

Multiplayer types

Type	Native	Players	Notes
Local play		6	Co-op Use Nucleus Coop & Unofficial mod.
LAN play		6	Co-op
Online play		6	Co-op

The max player limit can be increased externally (128 players)^{[citation needed]}

Connection types

Type	Native	Notes
Matchmaking
Peer-to-peer
Dedicated
Self-hosting		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.

Ports

Protocol	Port(s) and/or port range(s)
TCP	8075, 28852
UDP	7707, 7708, 7717, 20560, 28852

Universal Plug and Play (UPnP) support status is unknown.

When hosting a listen server behind a router, it may be needed in your Killingfloor.ini to set ServerBehindNAT=False to True

Issues fixed

CustomSpawnFix

CustomSpawnFix mutator fixes zed spawning on older maps. Also available on the workshop here.

Grenade Arm Fix

Grenade Arm Fix makes the game display the proper character arms when throwing a grenade instead of generic camo ones.

Paramedic Alfred Anderson Viewmodel Fix

Paramedic Alfred Anderson Viewmodel Fix makes Alfred Anderson have rolled up sleeves on his view model as he's intended.

Unicode Fix

Unicode Fix makes non English characters appear properly in chat instead of just "11:09, 3 September 2018 (CEST)~~".

Mouse sensitivity resets

Change the option before joining a server[citation needed] Close the game and re-launch it. Before joining a new game, change the mouse sensitivity setting.

Manually edit the configuration file[citation needed] Close the game. Open the <path-to-game>\System\User.ini file in a text editor such as Notepad++. Ctrl+F for MouseSensitivity=. Ensure the line you find is under [Engine.PlayerInput] Change the setting to match your desired sensitivity.

Crash to desktop

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

Flickering

Use the -windowed property[citation needed] Find Killing Floor in your Steam Library Right click on game and select Properties Select Set Launch Options Enter -windowed into the dialogue. Click OK Start the game and it should be fixed Notes 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

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

Re-enable gore

Depending on your version of the game, Killing Floor can have gore disabled. This fix re-enables gore.

Manually re-enable gore[citation needed] Start the game at least once, so it can create all configuration files. Go to <path-to-game> Open System\KillingFloor.ini Search for the line [Engine.Engine] Add bdevgoreoverride=True on a new line at the bottom of the [Engine.Engine] configuration block. Save the file, restart Steam and enjoy your uncut game.

Main menu unreadable in windowed mode

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

Sound stuttering in ArchLinux

Replace openal.so file[citation needed] Back up the openal.so located in <path-to-game>/System and install lib32-openal. If you are on 32-bit system, install openal Symlink the installed library with one of these commands: ln -s /usr/lib32/libopenal.so.1 <path-to-game>/System/openal.so ln -s /usr/lib/libopenal.so.1 <path-to-game>/System/openal.so

Other information

API

Technical specs	Supported	Notes
Direct3D	8, 9
OpenGL	2.1
Shader Model support	2

Executable	32-bit	64-bit	Notes
Windows
macOS (OS X)			[citation needed]
Linux			[citation needed]

Middleware

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

Console commands

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

System requirements

Windows

macOS (OS X)

Linux

Windows
	Minimum	Recommended
Operating system (OS)	XP, Vista
Processor (CPU)	1.2 GHz	2.4 GHz
System memory (RAM)	1 GB	2 GB
Hard disk drive (HDD)	2 GB
Video card (GPU)	64 MB of VRAM DirectX 9 compatible	128 MB of VRAM Shader model 2.0 support
Sound (audio device)	DX 8.1 compatible	Eax compatible

macOS (OS X)
	Minimum
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 ATI
Other	Intel GPUs unsupported

Linux
	Minimum	Recommended
Operating system (OS)	Ubuntu 12.04 LTS
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 ATI Intel
Other	GPUs with hardware-accelerated drivers