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Soul of Isaac

AchievementRepentanceUnlock unknown

Achievement details

Achievement number: 618
Description: ???
Requirement: Defeat Hush and Boss Rush as Tainted Isaac

How do you unlock Soul of Isaac?

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

Structured pathSource-backed requirements are mapped into trackable steps.

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All of
- Tainted Isaac → 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 Isaac
- Tainted Isaac → Boss Rush (normal)
  - Tainted Isaac

Show full path Show missing

What unlocking Soul of Isaac leads to

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13