One heart 1.21.6 is a release file of the Minecraft data pack One Heart, made for Minecraft 1.21.6-snapshot, 1.21.6. It was published on June 21, 2025 and is 0 MB in size. For the full description, screenshots and every other version, visit the One Heart 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.
