Rune Central

http://rapidshare.com/files/10825835/joeqx0.30.rar.html

NO HAVE BUGS!

Does it have source code? If not, the engine can never be improved and is at risk of rotting on the vine like so many other great engines.

This is why Quakeworld on average has better engines than Quake, all their authors released the source as required and the community built upon each iteration; whereas with nornal Quake there once was a great engine called XQuake and the author never released the source so rather than other author's being able to improve it, add features or fix bugs ... it rotted into extinction.