Um, um, um. So I have a penchant for crossover content. In particular, I have a world that combines pretty much anything as long as it doesn't change the world in a global, dramatic scale. (Though one timeline had the Earth destroyed by a giant tank in the Mayan Apocalypse, and my characters' iterations in two existing forum RPs are from this timeline---with differing reasons to be in other worlds.) And, um. I think I'm too shy to RP the Persona setting, but. Okay, I'm probably too shy. I'm listing it anyway, but I won't be very good at it. ;;; Invader Zim I can do pretty well. It requires no background in Japanese culture, and is outright comedic. Plus I have an Irken fancharacter, so. Elder Scrolls sounds like fun; I particularly enjoy Prequel. I have only played Oblivion and Skyrim, but I can research other eras if need be. I have enough content to go through.
Ooh! Ooh! God Eater Burst! Pokémon? why not! (Hell, I'd play a literal Wynaut. Should be fun.) I'd specialize on a Pokémon---sounds like fun. Homestuck~! I'm not reading it religiously, but I have a firm grasp on the goings-on of Homestuck. I'm decent at classpecting, too.
On that note... whynot Problem Sleuth?
Let's see... what else. I may as well put in Final Fantasy: Crystal Chronicles and Dark Souls.