My mother became disabled a few years ago and is now alone at the house a lot. She likes fantasy/sci-fi, so I'd like to find an MMO for her to play to keep her busy and let her interact with people.

She doesn't currently use Facebook, so I'd prefer to avoid Zynga-style games that focus on interacting with existing friends. She's also very tech un-savy, so the simpler the game is to learn the better (i.e. WoW is about 100x too complicated.)

I'm looking for something with simple mechanics that's very social and as low as possible on combat / competitive stuff. Something like a facebook game, just not on facebook...

Also our family is Mac only at this point.