I have unopened copies of Far Cry 3 and Binary Domain on my shelf but I'm not going to get around to playing them before the end of the year. They'd of both probably made my top ten, though.
My hardest choice turned out to be picking a no. 10, which was a battle between Mass Effect 3 and Spec Ops: The Line. In the end I went with ME3 but Spec Ops still deserves and honourable mention.