Book of Oil nline Slot

• The lower-value symbols are shiny 10 to A card royals.
• 10, J, and Q pay 10x your stake for 5 on a payline.
• K and A pay 15x your stake for 5 on a payline.
• The higher value symbols are all oil-related images.
• The stacks of cash and oil barrels pay 75x your stake for 5 on a payline.
• The oil pump pays 200x your stake for 5 on a payline.
• The smiling businessman pays 500x your stake for 5 on a payline.
• A purple and gold book acts as both the scatter and the wild, standing in for any other symbol and triggering free spins while paying 18x your stake for 5 on a payline.

Free Spins

Land 3 or more book symbols on the reels to receive 10 free spins where a random symbol is selected to become the special expanding symbol that will grow to cover the entire reel that it lands on while the feature is active. You can buy your way into this feature by using the Bonus Pop option that offers you various free spins options with your choice of expanding symbol for a price.

Gamble

At the end of a winning spin, you will be able to choose whether to play a win-boosting game of chance. You will choose one of four face-down playing cards and if you have a card of higher value than the dealer’s, your win will be doubled. You can play up to ten times, but a losing card means you lose all your winnings will be lost.