Euclidean Nightmare v2 is a release file of the Minecraft map Euclidean Nightmare, made for Minecraft 1.9-Snapshot. It was published on September 26, 2015 and is 0.6 MB in size. For the full description, screenshots and every other version, visit the Euclidean Nightmare map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.