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Isaac Progression

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Unofficial fan project. Not affiliated with the developers of The Binding of Isaac.

Game facts are sourced from the Binding of Isaac Rebirth Wiki (CC BY-SA), and each guide links to its sources. Your progress is saved only in this browser.

Achievement

Bound Baby

Defeat Mega Satan as The Forgotten.

In-game: “Unlocked a new co-player baby.”

Sources:Achievements Mega Satan

0 of 7 doneNext: The Womb

x

Stage 1

The Womb
Next up
Defeat Mom.
Reach Depths II and defeat Mom.
Sources:Achievements Womb

Stage 2any order

The Negative
Later
Defeat Satan 5 times.
After: The Womb
Satan defeats0 / 5
The Polaroid
Later
Defeat Isaac 5 times.
After: The Womb
Isaac defeats0 / 5

Stage 3any order

Angels
Later
Complete Chapter 6 (defeat ??? in the Chest or The Lamb in the Dark Room).
After: The Womb, The Polaroid
The gate is open!
Later
Defeat The Lamb.
After: The Womb, The Negative

Stage 4

The Forgotten
Later
Dig up The Forgotten with Mom's Shovel in the Dark Room (a three-part process).
After: The gate is open!, The Womb, The Negative

Stage 5

Bound Baby
Later
Defeat Mega Satan as The Forgotten.
After: The Forgotten, Angels, The Womb, The Polaroid