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Book of Oil[Endorphina]


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Title:  Book of Oil
Developer: Endorphina
Reels: 5
Rows: 3
Paylines: 10
RTP: 96.05%
Free Spins Freq: N/A
Max Win: 5000x
Max Win Probability: N/A
Volatility: Medium
Min/Max Bet: 0.01/100
Release Date: September 23, 2021


Now Play :https://k8.io/games/slots/end_bookofoil


Book of Oil: Slot Overview

Welcome to this new video slot from Endorphina. Here, enthusiasts have the chance to mine from oil rivers and fuel up their experience. Once you open the gaming window, you’ll find yourself staring at a background filled with derricks. High towering buildings stand tall in the distance, perhaps representing the booming economy of this oil city. You need to grab your machinery and start digging for the precious liquid that could see your life turning a new leaf. The gameplay perfectly blends some modernity with black and gold colors. You can land free spins with expanding symbols for better winning chances and prizes. Even better, the Bonus Pop Buy and Gamble features are also available. With this Book of Oil slot review, you should be ready to start gambling at any time.

book of oil.PNG

It’s possible to play, even when on the move, thanks to the mobile version. Thankfully, the reel machine is still compatible with desktop and tablet devices. Before risking your dough, consider gambling the Book of Oil demo version from our GoodLuckMate website. After entering the game’s interface, you’ll need to change it to your preferred language for compatible gaming. Click on the Menu icon, and under “Language,” choose the flag and suitable region.


You’ll notice that the reel set in the Book of Oil slot game has five columns, with three symbols each. It also comes with 1-10 pay lines that you can adjust. And, with a coin value range of between €0.01 and €10, the total stakes span from a min of €1 to €100. You change each value by tapping on their respective fields. Hitting Spin turns the reels once. But, you can activate auto spins by pressing the Auto button. It automatically starts up to 100 continuous spins. Enable Turbo mode to speed up your gameplay.


Book of Oil: Slot Features

Symbols and Payouts

The Book of Oil video slot comes with ten symbols that display in the paytable (i) panel. Line wins count when you match two or three-plus symbols of a kind. The symbol matches must appear in adjacent positions of active pathways from the leftmost side to the right. But, scatter wins pay in any grid position. The symbol payouts within the pay table display as a reflection of the staked bet.


The typical values 10s, Js, Qs, Ks, and As are the lowest symbols. Manage three, four, or five of each kind to receive from 0.5x to 15x the total stake. Then, wands of Banknotes and Flammable Barrels are the medium symbols worth 0.5x to 75x for two or more of each type. The Derricks and a Suited Mogul consist of the highest-ranking regular icons worth up to 200x and 500x the selected wager for at least two.

book of oil4.PNG

book of oil5.PNG


A book that looks like a Safe is the scatter plus wild. As a latter, it stands in for all other symbols to help create winning combinations. As a former, it rewards 2x, 20x, or 200x for three to five of its type. During the Book of Oil free spins, the wild cannot substitute for special expanding symbols. Check the following segment for more details about the title’s extras.

book of oil1.PNG


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.

book of oil2.PNG


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.

book of oil3.PNG


Book of Oil: Slot Verdict

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.



  • Interesting topic
  • Free spins
  • Max win of 10,000x
  • Possibility to buy free spins



  • Not a lot of features
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