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How to Use the Sanitarium in Darkest Dungeon

Updated 21 Oct 2026 Source Darkest Dungeon in-game mechanics and community documentation, retrieved 21 October 2026 By

The Sanitarium cures diseases, locks quirks, and removes bad traits. It is how you keep a roster healthy long-term.

Why this matters

Diseases and bad quirks quietly ruin heroes. The Sanitarium is the permanent fix, and it is worth the gold.

Step-by-step

  1. Send afflicted heroes to the Sanitarium.
  2. Cure diseases before they spread.
  3. Lock good quirks permanently.
  4. Remove bad quirks that hurt the hero.
  5. Prioritize front-line heroes for treatment.
  6. Keep Sanitarium slots busy between runs.
  7. Reinforce locked quirks against stress removal.

Tips

  • Lock good quirks so stress cannot strip them
  • Cure diseases early
  • Bad quirks compound into deaths
  • Keep the queue full between expeditions

Common mistakes

  • Letting diseases run their course
  • Losing good quirks to stress
  • Ignoring bad quirks until they matter
  • Leaving Sanitarium slots empty

Practical notes

The Sanitarium removes negative quirks and diseases, so spend heirlooms on the quirks that hurt combat. Cure diseases after each run. Prioritize the quirk over the disease when funds are tight. A clean hero fights better. Spend heirlooms on the quirk that hurts combat first. A clean hero fights better than a cured one with a bad quirk.

Cure diseases after each run so they do not stack into a stat crisis. Prioritize the quirk that forces bad combat choices, because a fixed hero performs far better than a cured one who still makes poor decisions. A clean hero is the foundation of every successful run.

Frequently asked questions

What does the Sanitarium do?

Cures diseases and locks or removes quirks — it is how you stop stress and affliction from quietly ruining heroes.

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Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.