Effects[edit | edit source]
- Whenever Isaac clears a room, has a chance to unlock a neighboring Red Room.
- This effect can occur while Isaac is inside a Red Room.
Notes[edit | edit source]
The chance for a Red Room door to unlock depends on the number of Crystal Keys held and what room was cleared.
|Crystal Key Count||Normal Room||Red room|
- Each cleared wave of a Challenge Room has a chance to generate an adjacent Red Room.
In-game footage[edit | edit source]
|The Binding of Isaac: Rebirth|
|Achievements||Attributes||Bosses||Cards and Runes||Challenges||Chapters|