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C Section

AchievementRepentanceUnlock unknown

Achievement details

Achievement number: 463
Description: Complete the final chapter with Lilith.
Requirement: Defeat The Beast as Lilith

How do you unlock C Section?

In The Binding of Isaac, C Section is unlocked by earning the The Beast completion mark as Lilith (Character).

Structured pathSource-backed requirements are mapped into trackable steps.

Complete the final chapter with Lilith.

See the full unlock path for C Section — 6 steps

Lilith (Character) → The Beast (normal)
1. A Strange Door is unlocked by beating Mother for the first time. source
2. Take The Polaroid or The Negative after Mom, escape the boss room, then use it to open A Strange Door. source
3. Find Dad's Note, complete the Ascent to Home, then defeat Dogma, the Ultra Harbingers, and The Beast. source
- Lilith (Character)
  - Lilith (Achievement)

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What unlocking C Section leads to

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13