Search for the Springs of Kehlbet
UPDATE: This project is currently inactive, pending closure. At this time it is unlikely it will see the light of day.
Search for the Springs of Kehlbet (SftSoK) was started in 2005 by the Guild of Age Crafters (an early community for MYST/URU fanartists) as a fangame production. After several technical hurdles, they eventually made the jump to creating essentially a full Total Conversion for URU. It will consist of around seven to nine core Ages, a full length game, and is currently scheduled to be released in Quarter 3 of 2009.