Killing Floor Mod 1.0 Archive Upload: Status and How to Run the Mod

The Internet Archive once hosted an upload titled "Kiling Floor Mod 1.0" (the misspelling is in the item's own address). It was meant to preserve the very first public release of Killing Floor, back when it was a free mod for Unreal Tournament 2004. Today the item is gone. This page records its status, explains what the mod was, and lists better places to look for the KF mod.

Splash screen of the original Killing Floor mod for Unreal Tournament 2004.

Status of the archive item

• The item page now shows: "This item is no longer available. Items may be taken down for various reasons, including by decision of the uploader or due to a violation of our Terms of Use."
• The item metadata is marked as dark (hidden), so no files, description or screenshots can be retrieved from it.
• No snapshot of the item page exists in the Wayback Machine.

In short: the link is dead, and nothing from it can be recovered through the Archive.

What Killing Floor Mod 1.0 was

Before it was a retail game, Killing Floor was a total conversion mod for Unreal Tournament 2004, developed by Shatterline Productions, a team that included Alex Quick, Mark "Marco" Welch and the composer zYnthetic. Development started around 2005.

Key points about the early mod:

• Version 1.0 was the first public release. It still had a single-player mode (with Sergeant Masterson appearing as a non-playable character), which was dropped in versions 2.0 and 2.1.
• The core loop was already there: survive waves of Specimens in a ruined London, buy weapons between waves, and fight as a co-op team.
• The mod continued through several versions up to 2.5x, reworking characters and visuals along the way.
• Tripwire Interactive then partnered with the team and released the standalone Killing Floor on 14 May 2009.

For the full story see Development history and History of the creation of Killing Floor. Cut and changed mod content is covered in Killing Floor Prototype, and how the Specimens evolved in ZED evolution from KFMod to KF2.

West London as it looked in the original mod.

Where else to look

Because this upload is gone, try these instead:

• Mod databases such as ModDB, which have long hosted Killing Floor mod releases for UT2004.
• Other Internet Archive items - search the Archive for "Killing Floor mod" or "KFMod"; other uploaders may have preserved different versions.
• Old UT2004 community mirrors and fan sites that kept mod archives.

Whatever source you use, scan the files before running them. Old mod installers are rarely signed, and re-uploads can be tampered with.

How a UT2004 mod like this runs

The mod is not a standalone game. To play it you need:

1. Unreal Tournament 2004 installed and updated to the final official patch.
2. The mod files placed in the mod's own folder inside the UT2004 directory (installers do this automatically).
3. Start it from UT2004's Community > Mods menu, or with a shortcut that launches UT2004 with the -mod= parameter pointing to the mod folder.

Expect rough edges on modern systems: old resolution limits, sound issues and a lack of populated servers. For a playable experience today, the retail game is the practical choice; see How to Buy and Play.

Specimen line-up from the mod era, many of which made it into the retail game.

Why it matters

The 1.0 release is the earliest snapshot of the formula that became a series: waves, a trader, a team of survivors and a lab-made outbreak in London. Even with this archive copy gone, comparing the mod with KF1, KF2 and KF3 shows how much of that original design survived. For a side-by-side look at the retail games, see KF1 vs KF2.