Here is the full list of all 12 Scarlett Mysteries: Cursed Child achievements worth 1,000 gamerscore.
Find all of the Father Traces.
Discover all the visions.
Finish the game.
Finish all the Minigames without skipping.
Finish all the Hidden Object Puzzles without using any hints.
Find half of the Father Traces.
Finish any Hidden Object Puzzle with less than 4 mistakes.
Finish any Hidden Object Puzzle in less than 1 minute.
Find 3 Hidden Objects within 3 seconds.
Finish any Minigame in less than 1 minute.
Finish 4 Minigames in a row without skipping.
Find one Father Trace.