Binding of Isaac: Rebirth Wiki
Binding of Isaac: Rebirth Wiki

Added in Afterbirth

Bursting Sack is a passive item added in The Binding of Isaac: Afterbirth.


  • Added in RepentanceThis item belongs to the Spider Baby set. Collecting three items from this set will transform Isaac into a humanoid spider.


  • Added in Repentance If either character holds Bursting Sack when playing as Jacob and Esau Jacob and Esau, neither will be hurt by the affected spiders.

In-game Footage[]


  • This item is similar to 15►Skatole Skatole, only affecting spiders instead of flies.
  • Befitting the name, this item's appearance is similar to a bursting Sack.


PC Added in Afterbirth † Z0MB 7AMP (First floor Treasure Room)

Switch Added in Afterbirth † 2MFE VQC9 (Treasure Room next to spawn)

PC Added in Repentance J7FV DTGC (First Floor Treasure Room)


Bug Bug! Spider enemies that are neutralized by Bursting Sack cannot be poisoned by contact via 15►The Virus The Virus, 15►Serpent's Kiss Serpent's Kiss, or turned into gold via 15►Midas' Touch Midas' Touch. They also become immune to contact damage from 15►My Little Unicorn My Little Unicorn, 15►The Gamekid The Gamekid, and 15►The Nail The Nail, but not the damage from Midas' Touch or Added in Afterbirth †15►Little Horn Little Horn.

The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
Achievements Achievements Attributes Attributes Bosses Bosses TarotCard.png Cards and Runes Challenges Challenges Chapters Chapters
Characters Characters MainPageBabies.png Co-op Items Items Item pools Item pools Monsters Monsters Objects Objects
Pickups Pickups Pills Pills Rooms Rooms Seeds Seeds Transformations Transformations Trinkets Trinkets