Based on a smallish initial ruleset, Astronomic survived for about four months before succumbing to loss of interest. Unfortunately, there was no mechanism for adding new players in the initial ruleset and the addition of such a mechanism was a constant source of contention, meaning that there was no new blood to keep things going when initial players lost interest. Moral: starting out requiring unanimity for all decisions goes nowhere fast.
Web Pages:
http://www.srcf.ucam.org/nomic
Contact:
amgb2@cam.ac.uk