Book of Oil

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Slots number

Established

Endorphina is a leading iGaming software provider, putting forth tons of trendy solutions and games for online casinos around the globe. Established in the market for 10 years, Endorphina is a proven B2B online gaming provider with over 100 fascinating titles in their current game portfolio. The company has been significantly awarded regarding their slot development, creation, and online casino technology.

Licenses: Мальта, Сертификация GLI-19, RNG от iTechLab

Book of Oil

RTP

96.02%

Volatility

High

Bet Range ($, €, £)

0.01 - 180

Release date

21.09.2021

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Review of the Book of Oil slot machine

Book of Oil is an exciting slot machine from Endorphina with an oil theme. The slot attracts players with an interesting theme, high-quality graphics and the potential for large winnings. Immerse yourself in the world of oil tycoons and try your luck!

Slot Details

Developer: Endorphina
Release date: 09/21/2021
Percentage of Return (RTP): 96.00%
Volatility: high
Number of lines: 10
Betting range: from 0.01 to 100 coins

Rules of the game

The goal of the game is to collect winning combinations of identical symbols on active paylines. Payouts are awarded for combinations of 3 or more symbols, starting from the leftmost reel.

Special characters:

Wild (gold coin) - replaces any symbols in combinations.
Scatter (book) - triggers free spins and a bonus round.

Character	3 characters	4 characters	5 characters
Oilman	10	100	1000
Rocking chair	5	40	200
Tank	5	40	200
Drilling Rig	3	30	100
Barrels	3	30	100
A, K	0.5	5	15
Q, J, 10	0.5	5	15

Bonus Games

- Free Spins. 3 or more Scatter symbols trigger 10 free spins with an expanding special symbol. Before the start of the spins, a random symbol is selected, which can expand to the entire reel during free spins.

- A risk game. After any win, you can play a risk game and try to double your winnings by guessing the color of the card.

Payments

A detailed paytable is provided in the "Rules of the Game" section. The symbols of an oilman, a rocking chair and a tank are of the greatest value. Combinations of these symbols can bring large payouts, especially when betting at the maximum level.

Free Book of Oil game

On the necasino website, you can play Book of Oil for free without registration. For this:

Find the game in the site's catalog
Click the "Play for free" button
Wait for the game to load and start playing

Advantages of the free game:

Familiarization with the functions of the slot without risk to the wallet
The opportunity to work out the strategy of the game
Play for fun and stress-free

The free game mode is ideal for beginners and anyone who wants to explore the slot first.

Results of the review

Book of Oil is a high-quality and interesting slot machine with an original theme. The slot offers an exciting gameplay, generous bonus features and the potential for big wins.

Positive:

Interesting oil topics
High-quality graphics and animations
Expanding symbol in free spins
A risk game to double your winnings

Minuses:

High volatility can lead to long series without wins

If you appreciate original themed slots with interesting features, Book of Oil is an excellent choice. Play for free on necasino to make up your mind about the game. And if you are ready to play for money, do not forget about prudent bankroll management. Good luck!