Planetoid Mod 1 7 2 and 1 7 10
Minecraft full of spheres! But spheres made with cubes!
Planetoid 1.7.2 is a mod that is responsible for changing the generation of worlds in Minecraft, to offer a world formed of small spheres that simulate mini planets, formed of biomes that you usually find in the game.
Detail and Download here : Planetoid Mod
Homepage: Mods for Minecraft