Interesting.
I think there should have been some sort of screen that briefly explains the rules, although they are easy to figure out, but also it wouldn't just throw you into the game. It is interesting, but like others said, it should have other features to truly be fun. At the same time, you did a good job at showing how a game can be good with minimal programming and data. I definitely don't think this should be blammed, but I think you should take this idea somewhere. Since we're rating games based on the fun factor, I give it a 6.5.