An open-source platform for creating free massively multi-user virtual 3D online worlds. The closed online world Second Life is to Croquet in 2006 as the closed services Prodigy or CompuServe were to the open internet in 1994.
Describing itself as an "Open Source Religion" modeled on Wikipedia's decentralized process, this movement of doubters has much in common with Universism, the Church of Virus, the Fellowship of Reason, and the Church of Freethought.