Gravity Cubes v1.0.zip is a release file of the Minecraft map Gravity Cubes, made for Minecraft 1.8.7. It was published on August 19, 2015 and is 0.5 MB in size. For the full description, screenshots and every other version, visit the Gravity Cubes map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.