Binding of Isaac: Rebirth Wiki

Disambig-dark.png This article is about Loki, not to be confused with Lokii.

Loki is a boss that can appear in all environments of Chapter 3 (Depths Depths, Necropolis Necropolis, Added in Afterbirth Dank Depths Dank Depths).


Loki teleports to random locations in the room away from Isaac and has the following attacks:

  • Shoots 4 projectiles in the four cardinal directions, followed by the four diagonal directions, and then the cardinal directions once again.
  • Spawns a Boom Fly Boom Fly on top of himself. A maximum of 4 Boom Flies can be alive at once.
  • Shoots 8 projectiles in all directions.

Loki deals a whole heart of contact damage.

A Poky Poky can accompany Loki during the fight, dealing contact damage and blocking Isaac's tears.

Added in Repentance Loki can also be accompanied by 4 Stone Grimace Stone Grimaces in the corners of the room.




  • Loki appeared in the original The Binding of Isaac.
  • Loki has smaller eyes and different horns in his boss portrait.
  • The Poky in the room does not damage Loki's Boom Flies as it did in the original game.
  • Loki's "mark" (The numbers 666 on his forehead) is more noticeable than his appearance in the original game.
  • Lokii is the posthumous version of him.
  • Loki is based on the Norse trickster god of the same name.
  • Edmund McMillen loved Loki's design so much that he made Added in Afterbirth Little Horn Little Horn.
  • Added in Repentance The Horny Boys The Horny Boys are a stitched amalgamation of Loki and Added in Repentance Hornfel Hornfel.