This may be a rather silly question, but bear in mind that I am relatively new to Linux and programming (about 4 months on each.) Where do I find the source code for the X-Windows based games on my system (assuming it was loaded with the install.) I am interested in following the basic outline that was set forth in the "How do I make a game tutorial" of starting with Tetris and Breakout clones, but I would like to have something to compare my work to as I go.

For one thing, it depends on whether you installed the source for each project. If you did, look in the installation directory (read the README.* files) for that information. If you still can''t find it:

prompt> find / -n filename.ext -p(e.g ''find / -n greversi.* -p'') 

if your using a distro, source code usually isnt included on the main cd''s except the kernel. if the games come with X itself they would be in the source you get from www.xffree86.org.
If not, check out freshmeat.net and see if you can find where the games source is hosted.

saai