Has potential
Felt like a good solid engine. Art could of done with some work, especially on the main menu. Also be a good idea to get someone to translate your words into English. The music didn't suit the game at all, I expected it to be quite an eerie game, because of the whole extinction part, but ended up feeling like a kids game.
I think if you improved the art, possibly made the stage bigger and created a darker atmosphere, you could have a good game.