This changes from time to time for me, but right now my favorite is Minecraft. I play it almost every day. I think it’s the freedom of gameplay and possibility for creativity that the game offers that attracts me. Some people speedrun Minecraft, some people build structures and sculptures, some people build ridiculously complex mechanical devices, some people even create 2D art using maps. Some people just like to play it the old school way and build their little house and farm, going out to explore every now and then in a huge, randomly generated world. It’s just incredible and I thank Notch and Mojang for creating a game like this. It’s the ultimate open world game.