This is fork of 2nd Quake engine, with Code::Blocks workspace, and few MinGW fixes. Both versions (ctf and game) and renderers (Software and OGL) "should" work.
Fabien Sanglard articles about Quake sources helped a lot with this version http://fabiensanglard.net/
Game should be compiled without problems, but DirectSound headers and libs should be present in compiler search path