The Cube Survival (fixed).zip is a release file of the Minecraft map The Cube Survival, made for Minecraft 1.12, 1.11.2. It was published on January 6, 2017 and is 3.1 MB in size. For the full description, screenshots and every other version, visit the The Cube Survival map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.