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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

Baptism by Fire

Defeat Satan as Bethany, defeat Mom's Heart 11 times, and unlock Maggy's Faith.

In-game: “Unlocked challenge #38.”

Sources:Achievements Challenges Baptism by Fire

0 of 9 doneNext: The Womb

x

Stage 1any order

Lazarus
Ready
Have 4 or more soul hearts at the same time.
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 2any order

Bethany
Later
Defeat Mom's Heart or It Lives! on Hard mode as Lazarus without dying.
After: Lazarus, The Womb
It Lives!
Later
Defeat Mom's Heart 11 times.
After: The Womb
Mom's Heart defeats0 / 11
The Negative
Later
Defeat Satan 5 times.
After: The Womb
Satan defeats0 / 5

Stage 3any order

Maggy's Faith
Later
Defeat The Lamb as Magdalene.
After: Magdalene, The Womb, The Negative
Urn of Souls
Later
Defeat Satan as Bethany.
After: Bethany, The Womb

Stage 4

Baptism by Fire
Later
Defeat Satan as Bethany, defeat Mom's Heart 11 times, and unlock Maggy's Faith.
After: Urn of Souls, It Lives!, Maggy's Faith