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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

Red Baby

Defeat Mega Satan as Magdalene.

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

Sources:Achievements Mega Satan

0 of 5 doneNext: The Womb

x

Stage 1any order

Magdalene
Ready
Have 7 or more red heart containers at the same time.
The Womb
Next up
Defeat Mom.
Reach Depths II and defeat Mom.
Sources:Achievements Womb

Stage 2

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

Stage 3

Angels
Later
Complete Chapter 6 (defeat ??? in the Chest or The Lamb in the Dark Room).
After: The Womb, The Polaroid

Stage 4

Red Baby
Later
Defeat Mega Satan as Magdalene.
After: Magdalene, Angels, The Womb, The Polaroid