Back when I had a Wii I was obsessed with this game called Orbient. You were a planet that could orbit bigger planets, and absorb smaller ones (or capture them in your orbit as moons). The controls were just two buttons for gravity and anti-gravity, and you'd use them to carefully move around the solar system until you were big enough to swallow the sun (if I remember correctly). First level: http://youtube.com/watch?v=Je0SZNDZcrU The closest thing I can think of on ios is Osmos, but it's still pretty different. I think Orbient would work perfectly on the touchscreen... are there any other games like it?