"Zombies, Run! is an ultra-immersive game for the iPhone, iPod Touch, and Android where you help rebuild civilisation after a zombie apocalypse. By going out and running in the real world, you can collect medicine, ammo, batteries, and spare parts that you can use to build up and expand your base - all while getting orders, clues, and story through your headphones."
Interesting concept: you play this game by running in the real world. The app tracks your run, but also unlocks items (ammo, vitamins, medical supplies). When you're done, you get to distribute those supplies throughout your city. During the run, there is an interactive experience where you're being chased by zombies and getting instructions through your headset. They're releasing this next year. I'll definitely try it out.