Here is the full list of all 23 Labyrinths of the World: Forbidden Muse Collector's Edition achievements.
Finish a hidden-object puzzle without any hints.
Finish 3 hidden-object puzzles without any hints.
Finish 5 hidden-object puzzles without any hints.
Finish a hidden-object puzzle within a minute.
Finish 3 hidden-object puzzles in a row within a minute each.
Finish 5 hidden-object puzzles in a row within a minute each.
Find 3 hidden objects in 3 seconds.
Find 5 hidden objects in 5 seconds.
Find 10 hidden objects in 10 seconds.
Finish all hidden-object puzzles without any hints.
Solve a mini-game in a minute.
Spend an olive in the boudoir.
Spend a coin in the shop.
Find the magic palette.
Use your Harlequin.
Unlock the art gallery.
Find the first part of Calliope's soul.
Used Magical Palette for the first time.
Used Enchanted Tuning Fork for the first time.
Used Mystical Notebook for the first time.
Open the library.
Open the theater building.
Complete the game.