Once you hit Play, your game will be created and you will be given a list of directions. Read the directions carefully and find the real locks in a grid full of look-a-likes rigged to explode. Each Vault is made of three or more levels. and beware, each new level adds more directions.
If you survive and open the Vault, you are awarded Vault money. You can use it to unlock Options to create more challenging Vaults and increase your award or buy Gadgets to help you crack open troublesome Vaults. You can also keep on playing at your favorite setting and you still will never play the same game twice!