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1. Mass Effect 2
I'll see your revolutionary RPG and raise you one that's even more so. Commander Shepard and his crew returned with Mass Effect 2, and the game was deep, compelling, often difficult, and one of the great bang-for-your-buck experiences of the past year. With hours and hours of game to be played, odds are good you'll still be enjoying it by the time Mass Effect 3 is released at the end of the new year.