AS Skyblock Classic v1.zip is a release file of the Minecraft map Agrarian Skies Classic Skyblocks [Unofficial], made for Minecraft 1.6.4. It was published on May 12, 2014 and is 1 MB in size. For the full description, screenshots and every other version, visit the Agrarian Skies Classic Skyblocks [Unofficial] map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.
