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Soul of the Forgotten

AchievementRepentanceUnlock unknown

Achievement details

Achievement number: 632
Description: ???
Requirement: Defeat Hush and Boss Rush as Tainted Forgotten

How do you unlock Soul of the Forgotten?

In The Binding of Isaac, Soul of the Forgotten is unlocked by earning every normal-mode completion mark as Tainted Forgotten.

Structured pathSource-backed requirements are mapped into trackable steps.

???

All of
- Tainted Forgotten → Hush (normal)
  1. Defeat Mom's Heart for the 10th time to unlock Blue Womb. source
  2. Defeat Mom's Heart or It Lives! within 30 minutes and enter the door to Blue Womb. source
  3. Defeat Hush in Blue Womb. source
  - Tainted Forgotten
- Tainted Forgotten → Boss Rush (normal)
  - Tainted Forgotten

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What unlocking Soul of the Forgotten leads to

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13