This game leads you in with a charming atmosphere and a promise of exploring cool, handcrafted worlds. That alone would have been a pretty awesome game. But the developers go above and beyond with this one.
It's a game about exploration, and as such I feel like the more details you know, the less impact it will have. There's no combat, but there are numerous puzzles and clever design tricks.
The one thing I'll say is that the developers clearly love elements of The Legend of Zelda series, and brought them together into a beautiful harmonic resonance.
Play this game. Please.