Zombie Nation MUD (ZNMud) is a Multi-User Dungeon engine. It is based on the Teensey engine for its lower level socket handling. It was designed to play out zombie outbreak ideas but can easily be expanded to host other concepts. It's a massive multi-player text-based game (although it does support MXP). It also supports modern day weapons, etc.
Froggix is a clone of the classic '80s arcade game Frogger. The aim of the game is to help four frogs to cross a busy road and a treacherous river to get to their homes. Extra points are awarded for catching flies and completing each level quickly. The game features funky electro-music, great sound effects, and a highscore table.
Dpmaster is a lightweight master server initially written for the DarkPlaces game engine. Its Quake III Arena-like protocol allows it to fully support new games without having to restart or reconfigure it. In addition to its own protocol, dpmaster also supports the master protocols of "Quake III Arena", "Return to Castle Wolfenstein", and "Wolfenstein: Enemy Territory".