Ok, so this is a new game called StarMade. It bears many qualities to Minecraft that you'll immediately see, however it also has some very important differences. First, the similarities: Made of blocks Written in Java Similar release schedule Now, the differences: StarMade allows flying into space and building of spaceships Spaceships can move independently of block limitations It's currently free As much hate as I might get for this, here's episode one of the Yogscast's let's play on it: Spoiler It also has a very comprehensive tutorial on game launch, which I recommend you do. StarMade's currently in alpha, and it's also currently free. You also have the option of buying it, which gives you no advantage currently (other than recognition on the forums for it). I'm told you'll get benefits later, almost definitely including future updates when StarMade becomes an exclusively paid game. Don't quote me on that though. The game looks like it's going to have the same creative aspects of Minecraft, but a bit more violent from the PvP aspect of fighting other players with your ships. If it keeps up popularity, which the Yogscast will help with immensely if they continue their let's play, it will likely become an extremely popular game, and it's really fun, so why not? I should also add, it's very nice with performance. It's not using my dedicated graphics card, only integrated graphics and I'm still getting over 100 FPS. Tldr: Game like Minecraft, except you can build spaceships and fly them around in space. Still in alpha.