The Swarm
AchievementRepentanceUnlock unknown
Achievement details
- Achievement number
- 495
- Description
- ???
- Requirement
- Defeat The Beast as Tainted ???
How do you unlock The Swarm?
In The Binding of Isaac, The Swarm is unlocked by earning the The Beast completion mark as Tainted ???.
Structured pathSource-backed requirements are mapped into trackable steps.
???
- A Strange Door is unlocked by beating Mother for the first time. source
- Take The Polaroid or The Negative after Mom, escape the boss room, then use it to open A Strange Door. source
- Find Dad's Note, complete the Ascent to Home, then defeat Dogma, the Ultra Harbingers, and The Beast. source
How to unlock: Use Red Key (etc.) to open the hidden closet in Home as ???
What unlocking The Swarm leads to
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13