What I mean by this is.. games like Realm of the Mad God - where you can literally jump in and start up a new character - hit level cap in about 15 minutes, and go straight into end-game stuff - until you die and have to remake your character. :P

Not necessarily just looking for a roguelike(although I'm interested in knowing if their are any more roguelike MMOs, because these are really fun!), just a game that you can jump on, play for half an hour and really get something done. And have fun doing it.