I've written a �3D shoot-em-up game n C++ called Final Gun that runs under
X windows. It doesn't require any special libraries other than the standard
double buffer extension - its all done using Xlib. I've developed and tested
it on Linux, FreeBSD 6 and OSF/1 using gcc as the compiler but I'm hopefull it
will compile on most other unix/compiler combinations without too many problems.
If you'd like to give it a try its available here:
http://www.ogham.demon.co.uk/zips/finalgun_100.tgz
The graphics are fairly crude compared to modern games , more early 90s than
21st century but hopefully someone will find it fun.
NR