Here is the full list of all 28 The Myth Seekers 2: The Sunken City achievements.
You retrieved the ship from the bottom of the sea.
Find all Collectibles.
You managed to hit your target.
You befriended the dog.
You created a beautiful cake.
You summoned the Ghost of Gradlon.
Your sense of balance stood the test.
You saved the Mermaid's fishes.
You reached your destination.
You revealed your way to Ys.
Finish three Hidden Object Puzzles without any Hints.
You located the Dark Forest.
You learned the story of the Dark Forest.
You restored the statuette's headdress.
Complete five Minigames without skipping.
You successfully navigated the cemetery alleys.
You managed to reveal the Caretaker's secret niche.
You managed to free the Caretaker from the vines.
You successfully deciphered the secret message of Fabien.
You successfully found the hidden symbols.
Complete two Minigames without skipping.
Complete a Minigame in less than a minute.
You managed to stop the fire from spreading.
Finish all Minigames without skipping.
Finish a Hidden Object Puzzle in less than a minute.
Finish all Hidden Object Puzzles without any Hints.
Finish a Hidden Object Puzzle without any mistakes.
Finish Hidden Object Puzzles in 45 seconds without Hints.