Castle in the Sky is perfect game to introduce you to the HiberWorld experience. It's a fun and challenging platform game that tests your parkour abilities, but not so punishing if you make a mistake. Make sure you hit the checkpoints along the way to save your progress while in the game, and make it to the end at the top of the tower.

If you create an account before or after, you'll also earn XP for your achievement and be on your way to unlocking new avatar outfits and other fun things in the future!