Here is the full list of all 19 Dark Arcana: The Carnival achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Find 3 hidden-objects within 3 seconds
Finish 3 hidden-object scenes in a row without using any hints
Travel to the mirror world for the first time
Finish 3 mini-games in a row without using the Skip option
Make friends with the monkey
Finish any mini-game in less than 15 seconds
Finish any hidden-object scene with less than 5 incorrect clicks
Acquire a photo of the missing woman
Finish all the mini-games without using the Skip option
Finish any hidden-object scene in less than 1 minute
Finish all hidden-object scenes without using any hints
Complete the game (Expert Mode)
Unlock all the Achievements
Finish a game of Monaco in less than 1 minute
Finish 3 games of Monaco in a row without reshuffling
Finish half of all the games of Monaco
Finish all the games of Monaco
Learn the real story behind the ritual
Rescue Jim