ShadeWorld_Resourcepack_-_1.6.4.zip is a release file of the Minecraft resource pack ShadeWorld - 1.6.4, made for Minecraft 1.6.4. It was published on October 11, 2013 and is 6.7 MB in size. For the full description, screenshots and every other version, visit the ShadeWorld - 1.6.4 resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.
