This code was produced using B3DDecomp on executables that can be obtained on Steam.
If I'm not mistaken, to build this mod, you will need to use ZiYueCommentary's fork of Blitz3D TSS and patch the Large Address Aware flag. I haven't actually checked if this compiles at all :)
The game is based on the works of the SCP Foundation community (http://www.scp-wiki.net/).
This game and the source code are licensed under Creative Commons Attribution-ShareAlike 3.0 License.