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Killing Floor Prototype Complete guide to the Killing Floor prototype version - the original Unreal Tournament 2004 mod. Differences from retail, removed content, and prototype features.

Geekrainian #1

Group: Admin
Posts: 800

Posted: 24 Dec 2025, 16:00

Killing Floor Prototype

Before it got turned into a retail game, Killing Floor was a total conversion mod for Unreal Tournament 2004 created by Shatterline Productions, a team consisting of Alex Quick, Mark “Marco” Welch, zYnthetic, and others.

This page details one or more prototype versions of Killing Floor.

Note: This page contains NSFW content (nude zombie women).

Differences From Retail

Stuff from the mod that remained and was used in retail but received significant changes in the transition.

Assets

Character

There were a few characters who came from the mod to retail, and they pretty much only shared the same names with their physical appearances being very different.

Lt. Masterson

Masterson, labeled as a Sergeant in the mod, appeared in the 1.0 single player but not as a playable character. He has no description or portrait because of this.

In 2.0 and 2.1 with the single player being removed he went unused.

In the 2.5 release a different clone of him was added as a playable character. His model and textures were updated to be in the new visual style.

(2.5) Masterson

Portrait

Police Sgt. Davin

Davin, who was a private in the DRF in the mod, was added in release 2.0.

Pvt. Davin

Portrait, seems to be an earlier model with different hair and different beard.

In 2.5, Davin’s portrait was updated to use the new style.

Map

Weapon

Zed

Removed Content

Stuff that was in the mod and removed from retail, or removed from the mod AND retail. These assets might still remain in the files of the full game, but are documented here. Some Assets might also have been removed from the mod itself.

Assets

”GK” Package

From the first version of KF Mod 2 GK packages have been in the files unused. These files do not seem to be for KF, but a different project entirely. It is unknown what exactly these were meant for and they have been in the files since the first release of KF Mod 2.

Pinball ball - A pinball ball model
Button - A button model
Pinball paddle - A pinball paddle model
Ball pusher - A ball pusher model
Round bouncer - A round bouncer model
Triangle bouncer - A triangle bouncer model
Beveled Brick - A beveled brick model
Domino - A domino model

Pinball ball.

Button

Pinball paddle.

Ball pusher.

Round bouncer.

Triangle bouncer.

Beveled Brick

Domino

There is also a GKTextures package that has some interesting things, such as Actor Sprite, “DemoLevelObjects”, a cubemap and some flat colors (Black, Red, Blue, 2 grays).

The Actor Sprite

The “DemoLevelObjects”

The Cubemap

KFExplodingBarrelDeco

The mod featured some explosive barrels that went unused post 1.0, however their texture was still updated to be much brighter in 2.0 onwards.

1.0 Texture

2.0+ Texture

KFGra

A static mesh package containing modified Unreal Tournament 2004 assets. This was purged from the files for retail.

Gras - Grass models
Gnarled Tree - A gnarled tree model
Barbed Wire - Barbed wire models
Shrub - Shrub models

Gras

Gnarled Tree

Barbed Wire

Shrub

Character

DRF Commando

The mod featured some generic soldier characters that didn’t get any characterization and were thus unused in the final game. They were introduced in KF Mod 1.0. There was a Normal, Black, and Urban variant.

Soldier

Soldier_Black

Soldier_Urban

Portrait shared between the three of them.

In the 2.0 release of the mod, the model was updated. Soldier_Black and Solider_Urban were broken with their textures being removed, but still selectable. The normal Soldier received updated textures.

In the 2.1 patch, Soldier_Black was fixed to use the texture from Power. Urban remained unfinished.

In the 2.5 release, Soldier_Urban finally got new textures, they all also received a new portrait. The broken NameTag texture was changed to just be a static texture of a nametag for PVT. Jim. Interestingly, there is an unused camo gas mask texture.

Soldier_Urban(2.0)

Updated portrait for all of them.

Unused camo gas mask.

Unused Soldier_Urban portrait.

They all remained unchanged in 2.51. However a 4th variant was added into the files using its own model. It was only called Horzine so it would of presumably been called Soldier_Horzine. Only the model exists, no textures.