Able to choose set size for a World creation (So you can run around the world and not on a 1 dimensional plane) . Have a North/South Pole, Equator have Sand Areas, Spring, Summer, Fall, and Winter Seasons North of the Equator. Jungle South of the Equator.
World wouldnt have to be symmetrical like a sphere, but if it was a cube, make it so when you go over 1 corner of the world, your gravity would switch over aswell.
This would never be put into Minecraft though, as the developers would be to lazy to implement this option :I
