The room on The Airship that contains the vault is called Vault. In Among Us, Vault is a large circular room on the northwest side of The Airship, the game's fourth map.
Vault is more than a storage space: its decorations include a large ruby, a pile of gold, a golden gun, an energy sword, and mannequins. Several tasks can appear there, including Polish Ruby, Download Data, Dress Mannequin, and Clean Vent.
A common mix-up is confusing the room with Brig, which connects to Vault through a doorway. The room's name is Vault, while “treasury,” “bank,” and “safe room” are descriptive guesses rather than official location names.
The Airship was inspired by the Toppat Clan's airship from Innersloth's Henry Stickmin series. It was announced at The Game Awards in December 2020 and released on March 31, 2021.