Binding of Isaac: Rebirth Wiki

Added in Repentance

Act of Contrition is a passive item added in The Binding of Isaac: Repentance.


  • +0.7 tears up.
  • Grants an Eternal Heart Eternal Heart.
  • Allows Isaac to take a Deal with the Devil without being locked out of Angel Room Angel Rooms.
  • Makes it so Redemption Redemption is not guaranteed to appear naturally in Sacrifice Room Sacrifice Rooms.
  • Increases the chance for a deal to appear by 40% if Isaac has taken Red Heart damage.
    • Additional 15% is added if Red Heart was taken against the boss.
    • Both bonuses are applied after the normal penalty for damage, effectively mitigating them to -24% instead of -64% for taking damage during the stage, and to -44% instead of -99% for taking damage against the boss.


  • Act of Contrition originates from the Antibirth mod. It originally granted an Immortal Heart instead of an Eternal Heart, a heart type that was not added in Repentance. It also did not have the effect to increase the Devil/Angel chance.
  • An act of contrition is a Christian prayer that expresses regret over committing a sin and asks for forgiveness.