Here is the full list of all 20 Tiny Tales: Heart of the Forest achievements.
Find all Collectibles.
Finish all the Minigames without skipping them.
Save Brie.
Collect all Collectible Dolls.
Rescue the Princess.
Fix the machine.
Defeat the cat in combat.
Finish 3 Hidden Object Puzzles without a Hint.
Finish 3 Hidden Object Puzzles in less than 10 minutes.
Finish the Tournament.
Complete 5 Minigames without skipping them.
Obtain a pass for the tournament.
Win in a duel.
Make your first spell.
Complete a Hidden Object Puzzle without a Hint.
Complete a Hidden Object Puzzle without a mistake.
Complete a Hidden Object Puzzle in less than a minute.
Find 3 Hidden Objects within 3 seconds.
Complete a Minigame in less than a minute.
Find one Collectible.