This week, you'll save on undead content on Xbox Live. Well, the content is inanimate, but it's about undead things. That includes Zombie Apocalypse, Zombie Driver HD
, All Zombies Must Die
, avatar and Gamerpic sets from Black Ops
Zombies, and, for some reason, the Dead Rising 2
Ninja Skills Pack. They're all half off until the 18th. NBA 2K13 and its extras are also half off, unrelated to the zombie thing.
There's also a bunch of stuff on Games on Demand today, including everything from the high profile Kinect Disneyland Adventures to the all but forgotten Quantum Theory.