I recomend minecraft. It's a really cool game. You can chose between a creative world or a survival world. The creative world is just for creating a hole city or whatever you want. You can build houses, a hotel, a tree house, a SPA....
The survival world is more dificult. You have to survive: hunt for food and look for material to build a place to live, so the misterious and bad creatures that only apear at night don't hurt or kill you. You have to find various materials to build new objets and gadgets.
There is an edition for the computer and a pocket edition for your ipad, iphone...
BEST PICTURE ARGO ACTOR IN A LEADING ROLEDANIEL DAY-LEWIS ACTRESS IN A LEADING ROLEJENNIFER LAWRENCE ACTOR IN A SUPPORTING ROLECHRISTOPH WALTZ ACTRESS SUPPORTING ROLE ANNE HATHAWAY
Right now I'm dancing with JUST DANCE 4!!! In perticular, the songs "Good feeling", "Moves like Jagger", "Rock N' Roll (Will take you to do Mountain)" and "Beauty and Beat".