Binding of Isaac: Rebirth Wiki

Dark Matter is a passive item.


  • +1 damage.
  • Adds a chance to shoot fear tears, causing enemies to run away from Isaac.


  • Fear tear effect depends on the luck stat, and goes up to 100% at 20 luck.



  • Added in Afterbirth †Haemolacria Haemolacria: Tear appearance stays the same; only the main tear can cause fear.
  • Added in Afterbirth †Lachryphagy Lachryphagy: If a fear tear is fed, all burst tears cause fear. If a normal tear is fed, the burst tears cannot cause fear.
  • The Ludovico Technique The Ludovico Technique: Tear occasionally changes appearance to Dark Matter tears and causes fear.

In-game Footage[]


  • This item is used in Darkness Falls (challenge #4).
  • Dark Matter is a hypothetical form of matter that is thought to account for over 80% of all the matter in the universe. In media, dark matter is often portrayed as an evil element or demonic power, which explains why this item is found in Devil Rooms.


PC J0EH 8ZKW (First Devil Room spawn)

PC ZX0S SJV7 (Second Devil Room spawn)

XboxOne 6NRH TE08(Second floor Devil deal)