MMO that lets players run servers and change the rules
A group of developers who worked on Ultima Online, one of the earliest successful MMOs, are creating a game called Shards Online over which players will have enormous control. Players will be able to run their own servers, change the code that the game runs on, and add their own challenges. The internal logic of this is a game set in a multiverse, and players who hop from one server to the next are entering an alternate reality. Shades of World of Democracycraft. (via /.).