Started in 1991, LambdaMOO is the first MOO ever. The theme takes place inside and on the grounds of a large, sprawling mansion and is loosely based on the creator's home in California. Much more geography, places to explore and games to play with than you'll ever have time for! Its 6000 world-wide users make it one of the largest vr worlds around. Although the term 'self-governed' may be debatable, Lambda continues to be an experiment in the evolution of a virtual community, including such facets as representative government and conflict resolution.