Any cool Surface games?

[Donkey Punch]

Now that both Surface and Windows 8 have been out for a while, are there finally any must-have games for the platform? I remember when Windows 8 first came out, there were like 3 games for it in the Windows Store, but I imagine the situation must be better now.

I am more interested in exclusive Windows/Surface games, as opposed to iOS and Android ports like Angry Birds or Candy Crush Saga.