Choerbaerts Suche nach dem Rönk (Choerbaerts search for the Rönk, or CSNDR for short) is the name of a 2d adventure. Its code is based on SDL and OpenGL. It is written in C++. At the moment, it is still under heavy development. There are playable releases available, but they are mainly for testing purposes without any story elements.
Choria is a game set in the land of chores. It is a 2D MMORPG in 800x600 with 3D accelerated graphics. Its features include doing chores, slaying monsters, killing goblins, getting great loot, earning money for college, and vacuuming virtual carpet. You can play with builds that include up to 30 different skills. PVP play is open and always available.
Cosmos of Methos is a game where you are placed behind the wheel of a Hellenik Trireme, a Phoenecian trade-ship, or a Skythian pirate ship. Nevertheless, you have equal oportunity to rule your destiny -- to become a peaceful trader or a fearsome captain. After all, was Odysseus better than you?
Crossfire is a multi-player graphical arcade and adventure game made for X. It has certain flavours from other games, especially Gauntlet and the rogue-like games (Nethack, Moria, Angband, and Ragnarok). Any number of players can move around in their own window, finding and using items and battling monsters. They can choose to cooperate or compete in the same world.