Tomomb's Twenty-Thirteen Top Ten
I'm sorry, I have not yet had the chance to play Super Mario 3D World and Rayman Legends yet. If I had they would likely be strong candidates for this list and I plan on owning them both very soon.
I've also only dipped my toes in games like Gunpoint, Rogue Legacy, The Stanley Parable, and Papers Please. My opinion on those games aren't fully formed yet.
I played Wind Waker HD, and while I'm not including this remake in this list for 2013, the original release does hold the title for my game of its generation.