Already checking out this project, I've known lolet (the author) for a long time. This is the code used on Annihilus Realm. However the github repo only has the client code.
@whist: I should have thought that you already know it it would be great if you could cooperate at least with something and thus don't have to do the same things twice...
Well, the only major changes it has that we don't is, max players increased (which I'm working on), and spectator mode, which I would like to implement in a future patch when we fully implement pvp features.