After countless waiting and footage, tomorrow marks I Am Alive‘s release on XBLA. You play a man searching for his family after post-apocalyptic doom to find out if they’re still…well…alive. Along the way, you’ll need to help people with water and food in order and stray away from the crazies that want to steal everything from you. In addition to the launch trailer above, Ubisoft has launched a free companion app on the iTunes App Store. The app will come with a map of the area and list of resources to help you find water and food to ensure your survival. No word if it’s coming to Android or WP7 as of now but we’ll let you know if there’s any updates.

If you want to get through the post-apocalyptic gloom, check out I Am Alive this Wednesday for 1200 MSP and don’t forget if you bought the three previous House Party titles, you’ll get 800 MSP back for free. You can also check out the first 15 minutes of the game in action after the jump but if you’re not a fan of spoilers, just wait until tomorrow.