Romdeau is a multifandom game on LiveJournal set in the world of the anime series Ergo Proxy. There's no need to have watched the series to participate. (As a player there, I can vouch for this.) It's something of a memory loss game in which your character's memories have been wiped, and they have been reprogrammed with new ones so they believe they lived in Romdeau all their lives. As the so-believed perfect, structured city comes undone, your characters begin to see flashes of what they don't know are their real lives, the ones they were taken from to be brought here. It's a promising game, and it would love to have some more players to really get it going!
The basic premise can be found here, if you're interested.