Okay, here's the list of worlds we could go to that I promised. Keep in mind these aren't your only options, they're just ones I can think of. I'll also put up a post introducing my veterans once I finish up my newbie's sheet.

Metroid: Other M (correcting the story's problem, anyone? (that problem would be Samus herself and the way she was depicted))
Elder Scrolls (any location in its universe, doesn't even have to be Tamriel)
Metroid Prime 3 (continuing from Prime 2 in the first run of Multiverse)
Hyrule (from Zelda, duh)
Termina (also from Zelda, less of a duh)

Not much, but anyone is free to suggest a world so long as they are familiar enough to essentially run an RP in that setting.