Real mix really. I have a time travel rp based around sending selected 'Champions' back in time to protect the beginnings of their civilization. So there's of course, a lot of magic, clerics (that's me), a magician, ranger, the works :P There's then a cowboy, episodic space venture, which kinda feels like Firefly and is a good laugh. The final is a mutant based rp, where 9 individuals (mutants) are taken and placed into a cabin. They have no memory of the life before the cabin, but basic information such as their name is still there. They don't remember they have powers however.
The whole point of the final rp is that they are being watched by a human scientific team, who have been hired to determine whether or not Mutants are a threat. :) Really sad my long running rp group fell, as before all the above, I was in a Walking dead rp which was amazing. Ran for three seasons, before we needed a change in topic :P