1UP's Favorite Games of 2012: XCOM Enemy Unknown Of all the games I played in 2012, XCOM Enemy Unknown stood out as my favorite. I didn't expect this outcome initially -- especially since I have a novice level appreciation for strategy games -- but developer Firaxis has assembled a tense tactical game filled with gripping choices both on and off the battlefield. More importantly, Enemy Unknown doesn't toss around the idea of decision-making lightly; each individual selection can have large consequences and set up some incredibly thrilling moments.

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