Terraria is one of those games I kept coming back to. I own it on PC, xbox, and even my 3DS. I can't get enough of it. The controls are easy to use and complications don't come up often because it's a 2d game. The graphics are exactly what they're meant to be: brilliant pixel art. The gameplay is nothing short of amazing, as long as you can stand a little grinding and mining. All around, I'd buy it again and again. Also try Minecraft.