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Adoption Papers

TrinketRepentanceLocked

How do you unlock Adoption Papers?

In The Binding of Isaac, Adoption Papers is unlocked by earning the Mother completion mark as Tainted Lilith.

Structured pathSource-backed requirements are mapped into trackable steps.

Shops can sell familiars, which will always be at a discounted price.

Adoption Papers (Achievement)
- Tainted Lilith → Mother (normal)
  1. Defeat Hush 3 times to unlock A Secret Exit. source
  2. After A Secret Exit is unlocked, a locked door to Downpour appears after completing Basement/Cellar/Burning Basement I or II. source
  3. Collect Knife Piece 1 in Downpour/Dross II. source
  4. Collect Knife Piece 2 in Mines/Ashpit II. source
  5. After defeating Mom in Mausoleum/Gehenna II, stab the flesh door that appears with the knife familiar to open it. source
  6. Defeat the Mausoleum version of Mom's Heart behind the flesh door, then reach Corpse II and defeat Mother. source
  - Tainted Lilith

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What unlocking Adoption Papers leads to

Nothing depends on this yet.

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13