Here is the full list of all 13 Lost Grimoires: Stolen Kingdom achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Finish the game.
Finish all Minigames without skipping.
Find half of the Kestrel symbols.
Finish any Hidden Object Puzzle in less than 1 minute.
Find 3 hidden objects within 3 seconds.
Play through the first hour of the game without skipping cutscenes.
Finish 4 Minigames in a row without skipping.
Finish any Hidden Object Puzzle with less than 4 mistaps.
Finish any Minigame in less than 1 minute.
Find one Kestrel symbol.
Finish 6 Hidden Object Puzzles in a row without using hints.
Finish all Hidden Object Puzzles without using hints.
Find all Kestrel symbols.