doomsday_functionality.zip is a release file of the Minecraft data pack Doomsday Functionality Default Datapack, made for Minecraft 1.20.1. It was published on April 11, 2026 and is 0.1 MB in size. For the full description, screenshots and every other version, visit the Doomsday Functionality Default Datapack data pack page.
How to install: Put the .zip into the datapacks folder of your world (.minecraft/saves/<world>/datapacks) and run /reload. No mods needed.