Even if you never play against another human, there's enough here that'll keep you coming back time after time - if only to max out each character and unlock their entire gear list.
The list of compatible Xbox 360 games runs the gamut from digital - only games and retro remakes to major blockbusters such as Red Dead Redemption, Fallout 3, Dark Souls, Call of Duty: Black Ops and the entireGears of War series.