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