Tymix1.8BetaV0.5.zip is a beta file of the Minecraft resource pack Gerudoku Genesis (Formerly Tydoku), made for Minecraft 1.8-Snapshot. It was published on July 4, 2014 and is 19.4 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 Gerudoku Genesis (Formerly Tydoku) resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.