Progression route

The Path to Polished Bone

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Path progress

Paths end with clear instructions for actions that cannot be tracked automatically.

Next steps

The Fettered
How to unlock: Use Red Key (etc.) to open the hidden closet in Home as The Forgotten
Tainted Forgotten
Tainted Forgotten → Isaac (normal)

Polished Bone (Trinket)

Polished Bone (Achievement)

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Tainted Forgotten → Isaac

Tainted Forgotten

The Fettered

How to unlock: Use Red Key (etc.) to open the hidden closet in Home as The Forgotten

Tainted Forgotten → ???

Tainted Forgotten → Satan

Tainted Forgotten → The Lamb

How to reach The Lamb: Defeat Satan 5 times to unlock The Negative. The Negative is a guaranteed drop from Mom; take it, then defeat Satan in Sheol and touch the chest to enter Dark Room. Find and defeat The Lamb in Dark Room.

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