http://www.grimrock.net/extras/rotten_place_source.zip
You may freely use or modify the mod or its assets. Do note that the custom audio files are not included due to licensing reasons (I cannot hand over the rights for other people to use and modify the sounds we have bought).
I went through the mod and cleaned up the code a little and added comments and such but keep in mind that I started creating the mod at 2am and I was finished around 8am so my concentration might have slipped once or twice in the process.
