Finished I Am Alive over vacation and really enjoyed it. Having started it twice, I realize the first time I attempted it I was moving too slowly, expecting to be attacked at every turn. But this really slowed down the beginning of the game for me, which I should have realized was more of tutorial than anything else.
Really great game, and I'm glad I picked it up during a STEAM sale. I liked that it was different enough to not be a standard space-marine shooter, but also not a zombie-themed post-apocalyptic game.