Luna_freepack_1.21.1.zip is a release file of the Minecraft resource pack Luna HD 64x, made for Minecraft 1.21.1. It was published on October 20, 2024 and is 10.8 MB in size. For the full description, screenshots and every other version, visit the Luna HD 64x resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.