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Crooked Penny

AchievementAfterbirth+Unlock unknown

Achievement details

Achievement number: 294
Description: Unlocked a new item.
Requirement: Defeat Delirium as Keeper

How do you unlock Crooked Penny?

In The Binding of Isaac, Crooked Penny is unlocked by earning the Delirium completion mark as Keeper (Character).

Structured pathSource-backed requirements are mapped into trackable steps.

Unlocked a new item.

Keeper (Character) → Delirium (normal)
1. Defeat Hush to unlock The Void. source
2. A Void portal can appear after a major boss; defeating Hush guarantees one. source
3. Defeat Delirium, the main boss of The Void. source
- Keeper (Character)
  - Keeper (Achievement)

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What unlocking Crooked Penny leads to

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13