No missable achievements (plus 29 unknown)
Sign in with Steam or Xbox to track your progress, and:
Find a Healer's Sigil.
Prepare the Calming Brew.
Get help from a Swallow.
Enter the Garden.
Finish minigame in less than 1 minute.
Find 3 hidden objects within 3 seconds.
Prepare the swan boat for the journey.
Discover 20 clues (diaries, letters, etc.).
Get help from an Otter.
Open the Passage to the Forest Cavern.
Finish HO with less than 4 mistaps.
Find the kidnapped prince.
Scare 6 butterflies.
Get help from the Forest Spirit.
Finish HO in less than 30 seconds.
Enter Dark Castle Dungeon.
Witness the stories through the golden feathers.
Finish 4 minigames in a row without skipping.
Finish the game.
Don't skip the first 10 cutscenes.
Protect the spirits.
Finish 6 HO in a row without hints.
Deal with a dragon once and for all.
Play without tutorial.
Find half of all Healer's Sigils.
Finish all HOs without using hint button.
Finish all minigames without skipping.
Finish the whole Game on Expert Difficulty.
Find all Healer's Sigils.