There's a bunch of reasons why Minecraft is the best-selling video game of all time, one of them being the fact that the Minecraft world is truly open. There's no wrong way to play—one can choose creative mode, in which the player can unlock all the different kinds of blocks available and build almost anything imaginable. Or the player can choose survival mode, where resources are scarce, predators loom, and the game's internal lore becomes more apparent. Anyone who's managed to kill the Ender…