Binding of Isaac: Rebirth Wiki

Disambig.png This article is about the zodiac item. For the boss, see Gemini.

Gemini is a passive Zodiac item.


  • Spawns a conjoined familiar, much like Gemini's small twin, Suture. It chases enemies close to Isaac, dealing 3 damage per tick (~8 damage per second).


  • Despite its appearance and description, Gemini does not count towards the conjoined transformation.


  • Added in Afterbirth †Duct Tape Duct Tape: The familiar will stay in place relative to Isaac, but the effect of chasing enemies persists.
  • Added in Afterbirth †King Baby King Baby: Suture will rest near King Baby if there are no enemies near Isaac, but will snap towards the enemy once one gets close enough to Isaac. Otherwise, no functional difference.
  • Added in RepentanceRC Remote RC Remote: The familiar can be extended way past its attack range, and will still do contact damage, but will only chase when an enemy enters the usual aggro distance.

In-game Footage[]


  • Added in Afterbirth † The Gemini familiar is now animated, turning red and chasing enemies, similar to how Suture chases the player after Contusion is killed, based on this Steam Workshop mod by piber20.
  • Gemini's item ID is 318, putting it outside the range of other Zodiac items that are 299 to 309.


PC B9QZ YFAC (Treasure Room adjacent to spawn)

PC VS4W TZCC (Treasure Room adjacent to spawn)

PC S39G GEY0 (Treasure Room adjacent to spawn)

PC RPE7 NZYA (Treasure Room adjacent to spawn)

PC Added in Repentance 2TTY BAPT (Treasure Room adjacent to spawn)

3DS 3NQS 9VJC (First floor Treasure Room)