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Keeper's Bargain

AchievementRepentanceUnlock unknown

Achievement details

Achievement number: 572
Description: ???
Requirement: Defeat Isaac, ???, Satan, and The Lamb as Tainted Keeper

How do you unlock Keeper's Bargain?

In The Binding of Isaac, Keeper's Bargain is unlocked by earning every normal-mode completion mark as Tainted Keeper.

Structured pathSource-backed requirements are mapped into trackable steps.

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See the full unlock path for Keeper's Bargain — 6 steps

All of
- Tainted Keeper → Isaac (normal)
  - Tainted Keeper
- Tainted Keeper → ??? (normal)
  - Tainted Keeper
- Tainted Keeper → Satan (normal)
  - Tainted Keeper
- Tainted Keeper → The Lamb (normal)
  1. Defeat Satan 5 times to unlock The Negative. source
  2. The Negative is a guaranteed drop from Mom; take it, then defeat Satan in Sheol and touch the chest to enter Dark Room. source
  3. Find and defeat The Lamb in Dark Room. source
  - Tainted Keeper

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What unlocking Keeper's Bargain leads to

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13