I have to say that this game was simple and rather basic, but has soooo much potential. I love the look, feel, and idea of the game. Could there be more maps, weapons, tools, etc? Of course, but for a start, it is amazing. Even if you left it as is, I still loved it. I think you could make something really special with this though. I did a Let's Play, though a fairly short one (pizza was cooking) here: https://www.youtube.com/watch?v=cn1VTE0w6f0. I have to say though, keep up the amazing work, you have a talent.
Not bad, but the game play was a bit basic.