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.