Cursed Penny is an unlockable trinket in The Binding of Isaac, added in the Repentance DLC.

Teleports Isaac to a random room upon picking up a coin.

Can teleport to any room except an undiscovered Ultra Secret Room.

The teleportation effect can be removed with Black Candle.

The destination room is based on the type of coin picked up:
• Penny: unexplored combat room.
• Double Penny: Dice Room, Vault, Clean Bedroom, or Dirty Bedroom.
• Nickel: Treasure Room, Shop, Library, Arcade, Challenge Room, or Boss Challenge Room.
• Dime: Angel Room or Devil Room.
• Lucky Penny: Secret Room or Super Secret Room.
• Golden Penny: I AM ERROR room.
• Sticky Nickel: Boss Room or Curse Room.

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this trinket for the previous Repentance version, check this page instead.

Defeat Mother as Tainted Keeper.

Cursed Penny can be found in the following item pools:

The following special synergies and interactions for Cursed Penny have been documented.

* Note that not all possible synergies and interactions are listed here.

Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.

Cursed Penny

• Picking up a coin teleports Isaac
• Penny: 50% to unexplored combat room
• Double Penny: 50% dice room, vault, bedroom
• Nickel: 50% to treasure room, shop, library, arcade, challenge room
• Dime: 25% to devil/angel room
• Lucky Penny: 50% to secret room
• Golden Penny: 10% to error room
• Sticky Nickel: Boss room or curse room
• Golden Trinket (without Mom's Box): Increased odds for special room teleport
• Mom's Box: Increased odds for special room teleport
• Mom's Box + Golden Trinket: Increased odds for special room teleport

• Check out the trinket description on the external Isaac Wiki.