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Crystal Key trinket
Crystal Key is an unlockable trinket in The Binding of Isaac, added in the Repentance DLC.
Description
Clearing a room has a 33% chance to open a neighboring Red Room.
The chance is reduced to 12.5% if already inside a Red Room.
For more info about red rooms, check the Red Key page.
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.
How to unlock?
Defeat Mother as Tainted Lost.
Item pools
Crystal Key can be found in the following item pools:
| Name | Weight |
|---|
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 Crystal Key have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Trinket multipliers | Increases the base chance to 50%, and 16.6% when inside a Red Room. |
* Note that not all possible synergies and interactions are listed here.
YouTube video
External links
- Check out the trinket description on the external Isaac Wiki.
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