I have played Diplomacy in a very close-knit community, playing three turns a week. It's really pretty marvelous, especially when there is the possibility of face-to-face, long term alliance-building.
I've been a lurker here for a good six months. I feel like a game of Diplomacy would be a fabulous way to "join" Less Wrong more completely. How do I sign up?
I'm subscribed via RSS, so I don't really see comments, but I might start lurking on the actual site.