Here is the full list of all 36 Grim Legends 3: The Dark City achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Finish Game on Expert Difficulty.
Finish the Third Memory Mirror in less than 3 minutes.
Finish the Second Memory Mirror in less than 3 minutes.
Open the gate in the Garden without making a negative.
Win the last fight against the Koshmaar without failing.
Finish the last minigame in the game without the skip.
I got to the first Incarceri Stone. Made a choice. Was it enough to get rid of the Koshmaars once and for all?
Make a choice whether to fight or to deal with Koshmaar.
Finish a Hidden Object Puzzle in less than 20 seconds.
Move the ladder back, forth, back and forth again!
We saved the city, and Camilla. The Koshmaar is re-imprisoned. But so is Gabriel. It is a bittersweet victory.
Finish all Hidden Object Puzzles without using the Hint button.
Play all Minigames without skipping.
Find all Collectibles.
Solomon is dead. He turned into a Maskwraith. Gabriel showed up, and we joined forces.
Finish the Fifth Memory Mirror in less than 3 minutes.
Win the final rune battle without an error.
I have everything I need to face the Koshmaar.
Finish the Fourth Memory Mirror in less than 3 minutes.
Read 30 in-game writings during your journey.
Gabriel double-crossed me, but I know where to find him now.
Solomon's hurt. I must find a cure for him.
Find half of all Collectibles.
The Koshmaar abducted a city into his realm. We gave pursuit and helped one of the Maskwraiths. After, we encountered Gabriel, and Solomon ran after him. But we were separated.
Play Chapter 1 without skipping any cutscenes.
Finish the First Memory Mirror in less than 3 minutes.
Play 4 Minigames in a row without skipping.
Win a Rune Battle Minigame against a Maskwraith without an error.
Finish a Hidden Object Puzzle with less than 4 mistaps.
Finish a single Hidden Object Puzzle without using the Hint button.
Find 3 hidden objects within 3 seconds.
Finish the Tutorial.
Read all the newspapers at the Lichtenheim Train Station.
Play the Prologue without skipping any cutscenes.
An Incarceri Stone was stolen from the Order's Treasury. We followed a lead to the city of Lichtenheim.
Find the first Collectible.