https://bugs.winehq.org/show_bug.cgi?id=38104
--- Comment #9 from SÅ‚awek slawek@lach.art.pl --- I forgot to tell you, 7k2: TFW is now opensource, but assets are commercial. I think, you could check code and assets extract from demo version. I don't known how different are OpenSource version from older/original one. Especially there's work to port the game to Linux, but maybe it could be helpful.