Solar 2 is a really nice game, it's relaxing and you definitly don't need a dedicated grahpcis card to play this. Just a standard CPU with intergrated Graphics will do the trick.
THOUGH. I think $9.99 USD is a bit much for what the game offers so get it while it's on Sale!! I played this once and I was happy and done with it. Definitely not a bad game but It's not worth $9.99 USD in my opinion