Here is the full list of all 24 The Secret Order 2: Masked Intent achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Break out the prisoner.
Finish half of the hidden objects scenes without a hint.
Complete the 5 Faces Medallion.
Brew up a healing potion.
Finish a Hidden Object scene in under one minute.
Find three hidden items in three seconds.
Travel back in time.
Find the legendary ship of the Order of the Griffin.
Finish a hidden object scene without a hint.
Finish a puzzle in under a minute.
Finish a puzzle without skipping.
Unlock the secret entrance to the museum.
Finish all of the hidden object scenes without a hint.
Finish half of the puzzles without skipping.
Finish all of the puzzles without skipping.
Open the Gate of Champions.
Defeat the King of Ice.
Defeat the Queen of Fire.
Open the gates of the temple.
Dive into the ocean deep.
Use the Dragon Torch to subdue the dragon.
Arrive at the HQ of the Order of the Griffin.
Explore the secret of the old cannon.
Stop the ritual.