Book Of Gold Multichance video slot has three main bonus features that help you in increasing your payouts. First, you have the Free Spins feature that you trigger when you manage to land 3 or more Scatter symbols on the play area. Next, you have the Buy Bonus feature that you can simply buy with 100 in-game coins and this feature is simply a shortcut to the Free Spins feature that you can access at any time.