Binding of Isaac: Rebirth Wiki

Counterfeit Penny is an unlockable trinket.


  • Gives a chance, upon picking up a coin, to increase the value of that coin by 1.
    • Removed in Repentance 50% chance.
    • Added in Repentance The chance is based on the coin's worth:[1]
Coin Chance
Penny Penny 50.00%
Double Penny Double Penny 75.00%
Nickel Nickel 96.88%
Dime Dime 99.90%


  • In addition to regular drop options for all trinkets, this trinket can be found in Golden Poop Golden Poop, by killing a Beggar.png Beggar, or winning at a Shell Game.png Shell Game.
  • Added in Afterbirth Counterfeit Penny allows the chance for Keeper Keeper to gain the full value of a coin while healing.
  • Added in Repentance If picked up by Jacob and Esau Jacob and Esau, only the brother holding Counterfeit Penny can trigger the effect.


In-game Footage[]

  1. The chance is calculated as 1-0.50(coin_worth)