The Borg Server Framework is not a game but a framework (and two servers: World Server and Login Server).
Borg is intended for game developers not game players!
Although there is a oversimplified demo game (actually not yet finished but working), it is intended as a showcase for Borg developers.

If you are a game developer please check the latest forum posts in "getting started".
There is an excellent new compilation of steps needed to get started.

HTH
Riki