Skip to content

Isaac Progression

FinderUnlock finder
CharactersCharacters
MapMap
ProgressMy progress

Browse:Items Bosses Floors Challenges Endings

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

Strange Key

Defeat Isaac, ???, Satan and The Lamb as Tainted Eve.

Sources:Achievements Cathedral Chest (Floor)Sheol Dark Room

0 of 9 doneNext: The Womb

x

Stage 1any order

Eve
Ready
Don't pick up any hearts for 2 floors in a row.
The Womb
Next up
Defeat Mom.
Reach Depths II and defeat Mom.
Sources:Achievements Womb

Stage 2any order

Blue Womb
Later
Defeat Mom's Heart 10 times.
After: The Womb
Mom's Heart defeats0 / 10
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 3

A Secret Exit
Later
Defeat Hush 3 times.
After: The Womb, Blue Womb
Hush defeats0 / 3

Stage 4

A Strange Door
Later
Defeat Mother.
After: A Secret Exit

Stage 5

The Curdled
Later
Open the hidden closet in Home as Eve.
After: Eve, The Polaroid, A Strange Door

Stage 6

Strange Key
Later
Defeat Isaac, ???, Satan and The Lamb as Tainted Eve.
After: The Curdled, The Womb, The Polaroid, The Negative