Tymix1.8BetaV0.4.zip.zip is a beta file of the Minecraft resource pack Gerudoku Genesis (Formerly Tydoku), made for Minecraft 1.7.4. It was published on May 25, 2014 and is 18.8 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.