Minecraft wiki entry for PC_Gamer_Demo, associated text: The demo gives access to all the features found in the full version of the game, except that the player can access one world called the demo world. The demo world, which uses the seed "glacier" (or 108181935 when hashed), has been altered slightly to help guide newcomers to Minecraft. The demo spawns the player at x = 166, y = 65, and z = -57.