Two new Xbox Live games
2.A World of Keflings($6.99)
Also, a fighting game called Brotherhood of Violence($3.99) came out recently looks like a updated Double Dragon type of fighter.
I've played a little Galactic Reign; kinda cool. What's cool about this one is if you buy it on your win8 box, you can download for free on your XBox and windows phone 8. Then when you're playing, you can pause it, pick it up on a different device and continue playing. I tried this yesterday and it totally worked. It's turn based, so it's no huge deal, but still cool.