Katastrophe
Precompiled binaries
* boids missed out some rules
Code repository
There is an SVN repository with latest code:
https://katastrophe.svn.sourceforge.net/svnroot/katastrophe/trunk
Code from the trunk is available as GNU tarball too.
How to build from source
If you compile from source, be sure to download the linux package because of the more recent media files.
General tools
Libraries
SVN trunk of the Irrlicht engine
https://irrlicht.svn.sourceforge.net/svnroot/irrlicht/trunk
irrKlang (optional).