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

Added in Afterbirth †

For all Tech items, check Tech (disambiguation)

Technology Zero is an unlockable passive item added in The Binding of Isaac: Afterbirth †.


  • Connects tears with electricity that damages enemies.
    • Removed in Repentance The electricity's damage is equal to Isaac's damage.
      • Added in Repentance The electricity deals 33% of Isaac's damage.
    • Each of Isaac's tears can connect to other allied tears Including those of shooting familiars.
      • The number of connections is limited by the number of Isaac's tears.


  • It will connect Jacob and Esau Jacob and Esau's tears regardless of which one picked up the item.


  • Anti-Gravity Anti-Gravity: All of the tears fired are connected by electricity, creating a series of electric fences.
  • Cricket's Body Cricket's Body / Compound Fracture Compound Fracture / The Parasite The Parasite: Split tears will be connected via electricity.
  • Evil Eye Evil Eye: Tears fired by eye will be connected via electricity to Isaac's tears.
  • Added in RepentanceEye of the Occult Eye of the Occult: Allows you to move the electrified tears, allowing you to hit more enemies and do more damage.
  • Haemolacria Haemolacria: Main tears and bursts can be connected via electricity.
  • Jacob's Ladder Jacob's Ladder: Both effects happening simultaneously creates lots of electricity.
  • The Ludovico Technique The Ludovico Technique: Electricity connects the main tear to any other tears created by Isaac.
  • Pop! Pop!: Tears in midair and tears that knock around each other will still be connected, effectively creating electric barriers.
  • Sinus Infection Sinus Infection: Boogers will have electricity flowing between them even if attached to the same enemy, dealing massive damage to bosses.
  • Tiny Planet Tiny Planet: Creates moving laser fields that orbit the character.
  • The Wiz The Wiz: The diagonally-spreading tear shots will be connected by electricity, effectively making up for the item's blind spot and providing an attack with a very wide range.
  • Added in RepentanceTerra Terra: The lasers are capable of destroying terrain, but is unable to apply knockback, allowing to easily destroy large quantities of obstacles.


  • Brimstone Brimstone: Overrides Technology Zero.
  • Continuum Continuum: Tears will travel through walls; however, the electricity will not connect the tears while they are outside the room. Once tears have passed through walls, the electric arcs connect very erratically to other tears, limiting the efficiency of the combination.
  • Dr. Fetus Dr. Fetus: Overrides Technology Zero.
  • Epic Fetus Epic Fetus: Overrides Technology Zero.
  • Flat Stone Flat Stone: Only the last two tears will connect.
  • Haemolacria Haemolacria: Overrides Technology Zero.
  • Mom's Knife Mom's Knife: Overrides Technology Zero.
  • Technology Technology: Overrides Technology Zero.
  • Tech X Tech X: Overrides Technology Zero.
  • Removed in Repentance Trisagion Trisagion: Overrides Technology Zero.
    • Added in Repentance Sometimes overrides Technology Zero. Will occasionally cause the game to crash, if combined with additional tear increases. Firing for prolonged periods of time in a room will eventually cause Technology Zero to trigger.

In-game Footage[]