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XXI - The World? consumable
XXI - The World? is an unlockable consumable in The Binding of Isaac, added in the Repentance DLC.
Description
Spawns a trapdoor that leads to a Crawl Space.
Note
This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this consumable for the previous Repentance version, check this page instead.
How to unlock?
Defeat Ultra Greedier as Tainted Eden.
Special synergies
The following special synergies and interactions for XXI - The World? have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Tarot Cloth | No effect. |
| --- | Blank Card | Mimic recharge time: 2 rooms |
* 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.
XXI - The World?
• Spawn a crawl space
• Blank Card: Recharge 2
Sounds
The following sounds are related to this consumable.
External links
- Check out the consumable description on the external Isaac Wiki.
XVIII - The Moon? 
XIX - The Sun? 
XX - Judgement? 
Cracked Key 
Queen of Hearts 
Wild Card