Here is the full list of all 15 The Dreamatorium of Dr. Magnus 2 achievements.
Finish any Hidden Object Scene in less than 1 minute.
Unlock all Achievements.
Complete the game.
Finish all Minigame without skipping.
Find all the Eyes of Horus.
Finish all Hidden Object Scenes without using Hint.
Finish any Hidden Object Scene with less than 3 missclicks.
Use your Amulet 5 times.
Finish 4 Hidden Object Scenes in a row without using Hint.
Discover the Dreamatorium passage.
Finish 5 Minigame in a row without skipping.
Finish a Minigame in less than 1 minute without skipping.
Find 5 hidden objects in 5 seconds.
Find an Eye of Horus.
Complete your first quest.