Colossus is a Java implementation of the classic board game Titan. This project is the continuation of the Colossus project, hosted for many years on Sourceforge with Subversion.
https://sourceforge.net/projects/colossus/?source=directory
I named this repository colossus-titan, to distinct it from those many "Colossus" and "Titan" thingies that float around everywhere in the internet. This combined name should be fairly unique and descriptive :-)
With this migration to GitHub, we also hope to bring the project forward to semi-modern times, like svn to git, ant to maven, and perhaps finally give releases a meaningful version number instead of the 0.x.y's which sound like it would be in totally alpha state. Because in practice, the game has been in active use, even with a public server where to meet other players.
So far only the trunk was moved from Sourceforge-SVN to Github-git, but not much else was done, so all documentation still refers to the old situation.
If you are interested in getting involved into Colossus-titan, probably the best way to get started is to send a mail to Colossus developers list:
colossus-developers@lists.sourceforge.net
For a quick peek, take a look at BUILD.md.