Air traffic control tower and radar simulator (solo + multi-player)
Text Browser-Based MMO is a project with with forum integration.
Library for creating turn-based games with simultaneous moves.
Mighty 34th century meka action from TeamXbow
Proxy for games that emulates network conditions like ping and lag.
Robo Rally Boardgame clone written in Qt (single/multiplayer)
Bot for the game eRepublik.
SLiteChat is a completely open source text-only IM/chat client for use