Recognize the entrance
What the doorway looks like
The two chains require two keys. The chest above the door distinguishes this room from a Dice Room.
Chest-marked double lock
Original game-art examples, shown facing upward where relevant. Door textures and appearance can vary with the floor or item effects.
Related pickup rules
Understand the resources and chest types relevant to this room. These are useful references, not guaranteed rewards.
Related machines and beggars
Compare payments, rewards, and bombing effects relevant to this room. These references are not a guaranteed spawn list.
Find the entrance
How to enter Vault
Spend two keys at the double lock when a Vault appears.
What you can find
Rewards and opportunities
Chests and pickups; Golden Chests can provide items from their own pool.
Before you commit
The risk to plan around
Opening the door can leave you without keys for the Treasure Room or Shop. Chest rewards vary.
- Normal generation favors eligible even-numbered floors, with alternate-path exceptions.
- A Vault and an Arcade do not normally appear together.
Reference
Repentance rules and room variants
This guide describes the room type. Exact layouts and contents can vary. The rules use Repentance references; Repentance+ can change them.