Book of Oil Slot - Review, Free & Demo Play

The gamefield of The Book of Oil slot consists of 3 rows and 5 reels, and 10 paylines, that can be adjusted. And while the slot doesn’t have a lot of features, per se, but the ones that the game does have are very useful, especially the Bonus Pop feature which allows you to buy the Free Games bonus game. While we are going to take a look at these features below, its understandable that you may also like to check this game out in the demo mode or start playing right away, and in that case, let us show you how to navigate Book of Oil:

• Launch the slot, and after it loads you can click the list icon on the left side of the screen, next to paylines, to access the settings menu of the Book of Oil
• Set the number of paylines you need - from 1 to 10. The more lines the more winning chances you have, but it will also increase the bet size
• Select how much you want to bet/spin: the lowest stake is €0.01 while the maximum you can bet here is €30
• Read about the features and symbol value in the information menu (button “i”)
• If you want to start playing in regular mode, you can just hit the “spin” button, but you can also purchase the Free Games feature via Bonus Pop and start playing with this game mode already active!

The medium risk level of the Book of Oil means that this slot is somewhere in the middle between low and high-volatility video slots - so winning here will be slightly easier than in games with high risk, and the size of the winnings will be slightly bigger than on slot machines of lower volatility. Basically, it's the best of both worlds, and medium variance is perfect for most of the players. Other than nice volatility, the RTP of the Book of Oil is also decent, and the slot pays back 96.05%.

Endorphina is one of the most popular providers on the market that creates online slots. Endorphina creates games for different segments of gamers, from beginners to experienced high-risk players.

In the company's library, you can find games of various genres, such as adventure, classic, mystic, horror, and ethnic stories.

Gamble Feature

You can take advantage of the Book of Oil bonus game and double your winnings up to 10 times.

After a winning combination, the opportunity to play a game of chance is available, in which the player tries to beat the dealer by choosing 1 of 4 cards facing down. If you continue your winning streak, you will have 10 chances to double your winnings.

Free Spins

Ten free spins are awarded when 3 or more Scatter symbols appear on the reels. A random symbol is selected and can expand when enough symbols land to form a payline. In this game mode, their position does not matter. Only their number matters to trigger the expansion. They expand to cover the respective reels when there are enough of them. Big wins are potentially available at this stage of the game.

Bonus Pop

The Bonus Pop feature allows you to buy 10 free games and even select your expanding symbol. The price of this bonus buy depends on your stake and which symbol you choose, and the slot will calculate the exact price for you.

There is a special version of the Book of Oil in which all the gameplay is free, and you don't need to register at a casino or pay to play this slot. This is the demo version, and it offers exactly the same gameplay and possibilities as the for-the-money version, except that in the demo of Book of Oil you cannot win actual money.

You can win a jackpot that increases your bet while playing Book of Oil by 10,000x, which is considered an average, if not good.

It would help if you used the Wild symbol and free spins, as well as the gamble feature to get closer to the maximum win. Also, while Book of Oil doesn’t offer a jackpot, you can buy the Free Games feature via Bonus Pop, which we think would be pretty useful for you.

Book of Oil online slot is an interesting online slot with a fascinating theme. There is a wild symbol and free spins here, and you can also win up to 10,000x.

You will also get here the average volatility and the average RTP. Book of Oil is sure to appeal to all fans of original themes.