Calamity
Ouroboros
Final calamity dragon
The last fight of DAYS OF TORNADO and the trigger for the A Quiet World ending. Clear her debt-free and the achievement Responsible Adult comes with it.
When this happens
Year 2, March, Week 4 — run week 48
Boss weeks are the spine of a run. The June fight opens the year, the September fight is the aura deadline, December is the difficulty wall, and week 48 closes DAYS OF TORNADO. Everything between them is feeding and stamina management.
Achievement and unlock rate: Steam Community global achievements, 2026-09-29. Profile text: in-game Compendium, transcribed via the Fandom wiki. No details have been inferred for entries the game does not describe.