Don't Look Back V1.0 (1.12).zip is a release file of the Minecraft map Don't Look Back, made for Minecraft 1.12.1. It was published on August 10, 2017 and is 19.2 MB in size. For the full description, screenshots and every other version, visit the Don't Look Back map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.