Vaults

Vaults are in-game objects which can be opened using a key of the corresponding color. Opening a vault will show a trivia question whose difficulty depends on the color of the vault. Correctly answering the trivia question (aka solving the vault) will reward you with the vault's specified amount of cryptocurrency and other random rewards.

Vaults exist in two forms: regular vaults (randomly generated) and user vaults (created by players).

Other interactions
Interacting with a Vault can randomly proc a photo quest under certain conditions.