I found it insulting that Ubisoft even found I Am Alive fit to be released. It had been in development for years as a full-fledged game by Darkworks before it was handed off to Ubisoft Shangai who had to try and piece together something small and downloadble from the scraps. That's why the whole family angle seems to disappear from the story -- the whole arc with the lost girl would most likely just have been the first act of the full game but here it is its entirety. That's also why I believe the game has that ridiclous killer dust, it was just an effect they needed to add to drastically lower the draw distance so that they could get the game under the certain size required by Microsoft for Arcade games. You might not be able to fit a whole ruined city in under 2 gigabytes but you can fit a whole ruined city which you cannot see at all because dust completely fogs up your vision.
That's the one great thing about I Am Alive, it is the perfect example of why some games really do need to be cancelled if they don't work.