PlaneShift
PlaneShift is a free , open source , cross-platform , fantasy MMORPG in development . Client software is available for Linux and Windows , and planned for Mac OS X .
The game is currently in pre-alpha stage of development, at version 0.2, codenamed "Molecular Blue". The previous version, 0.1, was codename "Atomic Blue" and the next version, 0.3, will be codenamed "Crystal Blue". Crystal Blue is currently subject to a closed alpha test as of December 2004. Molecular Blue was very feature limited, but drew a number of players because of its close-knit community. The Molecular Blue server was shut down on 16th December 2004 for migration to Crystal Blue, with migration expected to take at least 5 days.
PlaneShift is set inside a gigantic stalactite named Yliakum . Life in this stalactite is possible because a huge crystal, named "The Azure Sun", draws light from the surface of the planet. PlaneShift has 12 playable races that all have their own homelands and characteristics. Outside of Yliakum are the Stone Labyrinths and through these you can access even more areas, like the cave in which the stalactite hangs.