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Rusted Key trinket
Rusted Key is a trinket in The Binding of Isaac.
Description
Grants a 10% chance of replacing the room clear reward with a key.
Chests, Tinted Rocks, Slot Machines and Fortune Telling Machines gain a 33% chance of adding a key to their rewards.
Note
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.
Tags
The following tags are applied to this trinket:
| Id | Description |
|---|---|
| nogreed | Not available in Greed Mode. |
Special synergies
The following special synergies and interactions for Rusted Key have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Trinket multipliers | Sets the room clear chances to 20% or 50% if tripled, and the drop chances to 66% or 100% if tripled. |
* Note that not all possible synergies and interactions are listed here.
Internal item description
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.
Rusted Key
• 10% increased chance of finding keys as room-clear rewards
• 33% chance to add an additional key to chests, tinted rocks, and destroyed machines
• Golden Trinket (without Mom's Box): 20% increased chance of finding keys as room-clear rewards
• Golden Trinket (without Mom's Box): 66% chance to add an additional key to chests, tinted rocks, and destroyed machines
• Mom's Box: 20% increased chance of finding keys as room-clear rewards
• Mom's Box: 66% chance to add an additional key to chests, tinted rocks, and destroyed machines
• Mom's Box + Golden Trinket: 50% increased chance of finding keys as room-clear rewards
• Mom's Box + Golden Trinket: 100% chance to add an additional key to chests, tinted rocks, and destroyed machines
External links
- Check out the trinket description on the external Isaac Wiki.
Umbilical Cord 
Child's Heart 
Curved Horn 
Goat Hoof 
Mom's Pearl 
Cancer