Vault



Vaults are special rooms that contain a variety of pickups/chests (or occasional lack thereof). Vaults require two keys to be opened, unlike most other special rooms. For a Vault to spawn, the following has to happen.
 * An Arcade has to be able to spawn that floor. This requires that both:
 * Isaac is holding five or more coins
 * The floor Isaac is going to is the second floor of a chapter
 * Once the game determines an Arcade will spawn, a Vault has a 1/10 chance to replace that Arcade. This chance increases to 4/10 if Isaac has two or more keys.

Contents
The following room maps were made using Basement Renovator for cleaner viewing. Note that any items that are generated/rerolled in this room will be from the Golden Chest item pool.