Here is the full list of all 21 Snufkin: Melody of Moominvalley achievements.
Knock down every statue in every park. Go on, do it!
Reach full stamina, you'll need it.
Find all the missing pages of Moomınpappa's masterpiece.
Talk to every creature who has something to say.
Reach the highest level of inspiration.
Discover all gazing spots and take a well deseved break.
Show every lost bee the way back to their hive.
Discover all the vistas and enjoy the view.
Play for every singing bird you meet.
Destroy everything in Fillyjonk's garden.
Destroy the Park Keeper's garden.
Escape the Groke without being caught once.
Extinguish all the flames.
Play a lovely tune for every woodpecker in the valley.
Help Sniff rescue his beloved Cedric.
Help Ninny retrive her clothes from the garment thief.
Find water for the painter so he can finish his artwork.
Find Little My in the well and help her out.
You upset the spider. Now make him feel better.
Find something for the horse which rivals her beauty.
Play your drum for 50 ferns and see how they like it.