No missable achievements (plus 27 unknown)
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Got working on your Magnum Opus
Discovered an echo from the past
Took a thousand steps
Found a memento of your family
Collected a rat sketch
Searched 100 drawers and cabinets
Embraced death for the first time
Completed a painting
Uncovered the developers' faces
Heeded the warning
Reached a conclusive ending
Accepted your father's apology.
Recalled all your childhood memories.
Refused to forgive in the end.
Marveled at the Furboy's portrait for a total of 5 minutes
Stuck to one parent's side through the entirety of the quarrel vision.
Gazed at paintings for a total of an hour
Recalled every word you said
Gathered all drawings of rodents
Gathered all family mementos
Assembled all the puzzle pieces.
Witnessed all outcomes
Watched the entire Little Red Riding Hood story.
Slayed the evil serpent roaming the land of the fables.
Discovered your true inheritance.
Read every note in the game.