37. Trine (PSN)
Trine is quite easily the best DL-only game I've ever played. It's absolutely beautiful to look at, and it has a great soundtrack*, but it's the gameplay that really shines through. You play as either a Wizard, a Knight, or a Thief (switching between each whenever you like). Each has their own abilities, the Wizard can conjure objects, the Thief has a grappling hook, and a bow and arrow as her weapon, and the Knight naturally relies on brute force with his sword and hammer. The three are bound together by the Trine, a mystical object that binds souls, and you set about trying to free them from each other, using each characters strengths to solve various puzzles and defeat an undead army along the way. If you have a PS3 and you haven't played this game, I can only ask, why the hell not?
*The main theme from the game. It's just so awesome...
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