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Gilded Key

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How do you unlock Gilded Key?

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

Structured pathSource-backed requirements are mapped into trackable steps.

Replaces all new chests, except Mega Chests and Old Chests, with Locked Chests. Grants one Key on pickup.

See the full unlock path for Gilded Key — 7 steps

Gilded Key (Achievement)
- All of
  - Tainted Cain → Isaac (normal)
  - Tainted Cain → ??? (normal)
  - Tainted Cain → Satan (normal)
  - Tainted Cain → 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

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What unlocking Gilded Key leads to

Nothing depends on this yet.

Source: bindingofisaacrebirth.wiki.gg

Imported 2026-09-13