I got taken back to Club Penguin as well. Especially clicking into the cave or treehouse and getting transported into a little side pocket of the map. Amazing work!
Club Penguin always held a special place in my heart but I never reflected on why. I'm sure part of it is a yearning for simpler times and a childhood unawareness of the nature of the world.
However, playing this reminded me of exploring hidden parts of a map imbued with love, the joys of finding other souls just lounging around or moving excitedly, and the cute little games and things strewn about every corner.