The Vault becomes available after completing five bundles. Each bundle in the vault simply requires gold to complete, and the item slots are replaced with a large purchase button. Pressing 'purchase' will complete the bundle and deduct the gold from the player's total, provided they have enough. | The Vault becomes available after completing five bundles. Each bundle in the vault simply requires gold to complete, and the item slots are replaced with a large purchase button. Pressing 'purchase' will complete the bundle and deduct the gold from the player's total, provided they have enough. |