Killing Floor is a survival horror total conversion set in London, England.

In a laboratory under the city, a series of human experiments in cloning and biological augmentation are being conducted by the employees of "Horizon". Horizon is a BioTech corporation formerly employed by the government to do the R&D on a top secret series of synthetic combat drugs which would enhance the effectiveness of soldiers in the field.

Horizon's funding was cut, when their practices were deemed too immoral even for such a controversial project, but the research didn't stop. Funded by private money from the deep pockets of Horizon chairman and research scientist Kevin Clamely, tests continued in a more...private location.

That was until something went wrong. There were reports that the lab had been comprimised; that the subjects were behaving abnormally...then, silence.

Several days later, twisted shapes began to emerge from the confines of the lab into the city above.


* Killing Floor Co-op Survival Horror (Tripwire)
* Killing Floor Mod Wikipedia
* Killing Floor Mod Wiki
* KF Mod Community Team
* Killing Floor (UT2004) Klub
* MahloeehDnM Killing Floor Server

Image RSS Feed Latest Screens
April Fools 2015 KFMod20 New Textures 5 KFMod20 New Textures 4
Blog RSS Feed Report abuse Latest News: New Models For KFMod30

0 comments by poompoom500 on Feb 27th, 2014

Yes, it is true. My friend the developer whose name I will not divulge, as well as myself, have made some major improvements to the game. We have added more and newer weapons, and a new character which I called the 'Infected'. The additions are displayed below (namely the new textures of the Killing Floor mod characters):

1. Bloat

KFMod30 Pic 1

2. Clot

KFMod30 Pic 2

3. Crawler

KFMod30 Pic 3

4. Gorefast

KFMod30 Pic 4

5. Infected (New)

KFMod30 Pic 5

6. Scrake

KFMod30 Pic 6

7. Siren

KFMod30 Pic 7

8. Stalker

KFMod30 Pic 8

NOTE: There are more updates in the latest version, which will be posted in another news article. Updates in the weapons list. Stay tuned.

Media RSS Feed Latest Video
Downloads RSS Feed Latest Downloads
Killing Floor Linux version

Killing Floor Linux version

Dec 31, 2011 Full Version 1 comment

Killing Floor mod Linux version with installer and a few nice features like a cache extractor and playlist generator

Killing Floor 2.52 [Zip archive]

Killing Floor 2.52 [Zip archive]

Dec 19, 2011 Full Version 14 comments

Just a zip version as an alternative to our Windows Installer.

Killing Floor 2.5

Killing Floor 2.5

Jul 5, 2008 Full Version 85 comments

The definitive cooperative survival horror mod for UT2004. Play as part of a squad of soldiers, attempting to survive a horrific onslaught. Use weaponry...

Killing Floor 2.5 Trailer

Killing Floor 2.5 Trailer

Dec 17, 2007 Trailers 10 comments

Warning : this video contains what could be considered EXTREME and GRAPHIC depictions of violent acts being performed by, and against escaped laboratory...

Killing Floor 2.11 Community Patch

Killing Floor 2.11 Community Patch

Aug 15, 2007 Patch 2 comments

This is a huge update. I would download this if you want to play online so download this to play game. It fixes lots of problems and adds some cool new...

Killing Floor 2.1 Patch

Killing Floor 2.1 Patch

Aug 14, 2007 Patch 0 comments

This fixes some minor errors for 2.0. Recommended if you want to play game only, most use this update.

Post comment Comments  (40 - 50 of 950)
Blake943 Sep 8 2012, 11:16am says:

shame mod will not be expanded :/

+1 vote     reply to comment
poompoom500 Creator
poompoom500 Sep 12 2012, 1:19pm replied:


It really is up to Tripwire. If they allow people to expand on the game, then there are people around who can make it happen. But as of now, our hands are tied!

You can make a difference. Why don't you tell Tripwire to let loose the shackles and allow us to add new stuffs to the mod!??!

+1 vote   reply to comment
dasha007 Sep 1 2012, 7:42pm says:

u realise this is unreal tournement 2004 right? 3 is differen

-1 votes     reply to comment
poompoom500 Creator
poompoom500 Sep 2 2012, 12:38pm replied:

To dasha007,

"u realise this is unreal tournement 2004 right? 3 is differen"
Yes sir. Killing Floor is an Unreal Tournament 2004 mod!

+1 vote   reply to comment
RippinZense Jul 20 2012, 2:41am says:

Hey guys, i want to play the old killing floor for the first time, but i can't start it up, the following box appears when attempt to launch:

Critical Error

KFMod Build UT2004_Build_[2005-11-23_16.22]

OS: Windows NT 6.1 (Build: 7601)
CPU: GenuineIntel PentiumPro-class processor @ 2943 MHz with 4095MB RAM
Video: No Video

Assertion failed: sizeof(*this)==GetClass()->GetPropertiesSize() [File:.\UnGame.cpp] [Line: 148]

History: UGameEngine::Init <- InitEngine <- FMallocWindows::Free

Any help would be appreciated

Thank you.

+2 votes     reply to comment
FiredFox3 Aug 18 2012, 4:11pm replied:

Is UE2.5 :D LOL)

+1 vote     reply to comment
AJ_Quick Creator
AJ_Quick Aug 22 2012, 8:13am replied:

what has that got to do with anything o_ 0

@ RippinZense - that error doesn't really say much. You're better off checking the game's log file for more info \System\KillingFloor.log

+2 votes   reply to comment
Technodude010 Jul 10 2012, 5:14pm says:

Okay, so there's KF retail and this UT 2004 mod. Are they in any way connected? Is it the same developer? If not, isn't that copyright?

-3 votes     reply to comment
poompoom500 Creator
poompoom500 Jul 13 2012, 2:33am replied:

To Technodude010,

Well, Alex Quick is the author of Killing Floor (UT2004) mod which was eventually sold to Tripwire and was enhanced to Killing Floor retail.

+4 votes   reply to comment
UnShame Jul 11 2012, 7:46pm replied:

obviously, people who created Killing Floor the game, created this mod before

+4 votes     reply to comment
DevonO0789 Jul 12 2012, 8:48am replied:

originally, this mod came out before the retail version, but it was made by someone else. The people who made Red Orchestra (Tripwire Interactive) became developers and made Red Orchestra into a game, then they asked the owner of the Killing Floor mod if they could own the rights to it, he agreed. The KFmod isn't owned by Tripwire, just the retail version, the people who own the mod as of right now is MiASMA.

+2 votes     reply to comment
AJ_Quick Creator
AJ_Quick Jul 13 2012, 8:46am replied:

incorrect. Killing Floor - in all it's variations (mod , retail, etc) is the property of tripwire interactive.

+2 votes   reply to comment
Post a Comment
click to sign in

You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.

2000 characters limit; HTML formatting and smileys are not supported - text only

Unreal Tournament 2004 Icon
Send Message
Release Date
Released Aug 13, 2007
Mod Watch
Track this mod
Community Rating



468 votes submitted.

You Say


Ratings closed.

Highest Rated (5 agree) 10/10


Nov 29 2010, 11:13am by JKeltner95

First Person Shooter
Single & Multiplayer
Embed Buttons

Promote Killing Floor on your homepage or blog by selecting a button and using the embed code provided (more).

Killing Floor Killing Floor
Killing Floor
Last Update
14 hours ago
671 members