TWP Spine of the World was released by developer TnTGaming and is quite a mouthful to say for a game. It is one of the few role playing games available on the XBLA and mixes a platformer game with RPG elements.
Unlike pen and paper games you do not take turns or plan out your moves in the game. You control a character who jumps platformer-style and attack enemies. The character you create is done via old-school Ultima type controls in which you make life choices at the beginning via a set of options that determine what type of character you play. You can choose to be "good" or "bad" and most everything in between at the beginning. Once you have your character you get to accept quests and proceed to work through the story line.