One Room.zip is a release file of the Minecraft map One Room Puzzle Map, made for Minecraft 1.9.1, 1.9.3, 1.8.7, 1.10-Snapshot, 1.9.4, 1.9.2, 1.8.4, 1.8.8, 1.10.2, 1.8.3, 1.11, 1.8.6 and more. It was published on December 17, 2016 and is 0.3 MB in size. For the full description, screenshots and every other version, visit the One Room Puzzle Map map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.