This is the second game I've developed, first game I've gotten sponsored. I've implemented a cool gravity engine that simulates how asteroids would react to the mass of the Earth. Only difference... time is about 1000 times faster and there's a lot more asteroids than you'ld ever hope to see coming at Earth. It's a little tough to get the hang of moving asteroids into orbit but the game starts off easy. If you want to see a video of someone reaching the moon level (lvl 50) check out the youtube link below.