http://minetest.net/ You may be asking yourself. "Wtf is Minetest?" Well Minetest is a game similar to Minecraft, Infiminer, and all the others. What makes it different? Well 1. The game isn't actually out yet. 2. The game is free. 3. Mods really do expand the game. 4. It's very fun to play. It may sound boring or stupid, but it's not. For a free game you should try it out.