No missable achievements (plus 20 unknown)
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Escape from Tilo’s cell.
Reach the highest point in the highest tower.
Gather fifty-five mushrooms.
Open all window shutters.
Reach the desolate shore.
Steal all of the Rat Guards' handkerchiefs.
Discover the name of every possible character in Dwindling Heights.
Reach the end of the game.
Play all songs during the course of the game.
Rid Dwindling Heights of all spiders.
Complete all of Gusto and Fatale's quests.
Learn all skills in the adventure.
Finish every secondary quest.
Unlock forty-five footnotes.
Set fire to all inflammable items in Dwindling Heights.
Complete the game without alerting any guards.
Complete the game without ever eating to regain energy.
Complete the game without getting hit by an enemy.