-119875774This article refers to the remake.
Isaac Rebirth

The Harbingers is an achievement from The Binding of Isaac: Rebirth.


Defeat Mom for the first time as any character.

Doing so will unlock Harbingers (Famine, Pestilence, Conquest, War, and Death) as well as the Headless Horseman.


  • It is one of the few achievements that can be unlocked along with multiple achievements at the same time.
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