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

Forgotten Lullaby

Blow up The Siren's skull after defeating her.

In-game: “Get that song out of her head.”

Sources:Achievements

0 of 1 doneNext: Forgotten Lullaby

x

Stage 1

Forgotten Lullaby
Next upPartly mapped
Blow up The Siren's skull after defeating her.
Blow up The Siren's skull after defeating her.
Sources:Achievements