JBA.zip is a beta file of the Minecraft map JBA: Origins Map, made for Minecraft 1.20.1. It was published on October 25, 2025 and is 479.8 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the JBA: Origins 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.
