🧠 Intro
Hiya, this website was converted from my steam guide for making maps in the Killing Floor 1 SDK (Unreal Engine 2.5). I HATE KF SDK, I despise it, it’s awful but I’m here because I love KF. If that’s the case for you, you’ll learn to despise KF SDK as well.
Ofc, there is at least a certain charm in this SDK because it’s based on a version of Unreal Editor 2.5 which just breathe’s simplicity.
Sure, the tools may not be intuitive for beginners, but with the help of guides you’ll at least realise they’re not hidden behind a million hotkeys or tabs.
Unless you get inventive there’s usually 1 or 2 ways to do something, and that’s that.
I might as well address the elephant in the room: This game is soo dead you’re prob here because you’re REALLY bored, or clicked one of my links to this guide, by mistake?! Meh, well have fun skimming through.
CRITICAL PATCH ALERT / IMPORTANT ADD ON (24/02/25 Edit):
metallicafan212 has released their slow-selection fix for the Killing Floor Editor, this means no more waiting 10sec++ for almost every actor selection to register in SDK!
GitHub Release – metallicafan212/UE2SelectionFixes v0.3-Alpha-KF
If you JUST started with KF SDK and you don’t like my Basics section, here’s a video which isn’t terrible for beginners:
If you’re only interested in SDK but don’t EVEN know how to open it yet, this guide would be better to start with:
Steam Guide – Getting Started with SDK
If you’re dying for a community to chat with there’re at least a few semi-active KF1 mappers in this (Siren Torturers) Discord server:
Join Siren Torturers on Discord
ST also offers an edited SDK (KFEd) application which beefs a 2GB RAM cap to 4GB :O
Makes you wonder what kind of PCs TWI were rocking am I right..?
Anyway, I’ve used it, everyone at ST uses it, and it works grand, so consider it highly recommended . KFEd-4gb.zip Download
P.S: If the download makes you nervous you can also try edit the .exe yourself. Briefly discussed here:
Steam Guide – 4GB Patch Discussion
If you prefer to mod you could consult my guide but Lazy KF Wiki is a better place to start. Community: Official KF Modders discord. (KF2 modders expanded their discord for us, and help with favours from time to time so play nice please).
For an unofficial KF1 modder discord (Bungalow), ping a message my way and I'll see if I can get you an invite, same as before, play nice, read their rules.
As an aside, here is a tutorial of me developing a small map to completion, without the decorating unfortunately:
Last of all, if you hate my style feel free to instead rely on some of my extensive references listed at the end of the guide.
Otherwise let’s get started…