Xbox game recs?

[minotaurs]

So the Neen managed to score himself an Xbox 360 for his bday, and has been sitting on the couch in his pj's for the past 72 hours playing Fable. Which looks pretty cool (the game, not the Neen's pj's), but not really my style (again, the game, not the pj's).

Got any recs for good Xbox games that aren't about fighting? I like sci-fi type stuff, and played Myst and Spore and Alpha Centauri on the PC.