The Silver Key is an unlockable active item in Benighted Soul, a mod for The Binding of Isaac.
Can only be charged by cleaning rooms.
Can be fully charged twice.
On use
Records the current room (only a few can be recorded) and game timer.
If recorded, try reset the closest room into recorded one, make game timer become recorded one, and reset the record.
In a new level, all rooms with the last-recorded type will be rerolled into normal rooms.
Rooms can not be reset:
• Unbefitting shape or doors position.
• Starting Room.
• Boss Room.
• Gree Exit.
• Mirror Room (Quest for Knife Pieces).
• Mine Shaft Entrance (Quest for Knife Pieces).
These room types can be recorded:
• Miniboss Room.
• Treasure Room.
• Planetarium.
• Library.
• Shop.
• Curse Room.
• Sacrifice Room.
• Arcade Room.
• Chest Room.
• Dice Room.
• Isaac's Bedroom.
• Barren.
• Secret Room.
• Super Secret Room.
• Ultra Secret Room.
• Devil Room (with Judas' Birthright).
• Angel Room (with Book of Virtues).
Earn all completion marks on Hard Mode as Benighted Lost.
The Silver Key can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Curse Room |
1.0/1.0
|
The following tags are applied to this item:
| Id | Description |
|---|---|
| offensive | Can appear for Tainted Lost. |
| nocantrip | Not available as card effects during the Cantripped! challenge. |
| nogreed | Not available in Greed Mode. |
The following special synergies and interactions for The Silver Key have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Book of Virtues | Can record Angel Room. |
| --- | The Book of Belial combined with Judas' Birthright | Can record Devil Room. |
* Note that not all possible synergies and interactions are listed here.