1. Start up Minecraft.
2. At the main menu, hit the “Mods and Resource Packs” button.
3. On the bottom, hit the “Open Resource Pack folder” button. A new window should open called “texturepacks.”
4. Drop the AdventureTimeCraft-8.0.zip file into this window.
5. Close the window and return to Minecraft. It should appear in your Resource Pack list.
6. Simply select AdventureTimeCraft-8.0.zip and click the “Done” button on the bottom