Book of Oil Slot Machine - Play Book of Oil Slot Free

Introduction 

Ever fancied making your fortune from an oil investment? Now might be the time to try the Book of Oil slot from game maker Endorphina.

The game has an official RTP of 96.05% and plays as high variance. There are 10 adjustable bet ways paying left to right, generated from a 5x3 reel set.

The book symbol doubles as a scatter and a wild, the former triggering free spins and a random expanding symbol.

There is also a sophisticated gamble feature where a new game of skill comes into play, and players can double their wins on the turn of a card, with up to 10 attempts available.

There is also a bonus pop-up feature allowing you to buy into a selection of options with free spins and expanding symbols. Alongside the paying scatter/wild there are four high value symbols.

If you enjoy games from this designer, why not try more Endorphina free play slots available here at Slots Temple.

Theme, Graphics and Soundtrack 

We are in a desert landscape on the edge of a city which appears to have been built on oil dollars in the Book of Oil, a new slot from game designer Endorphina. The book theme follows on from their Book of Santa slot.

The game has a dual wild and scatter as the book symbol, which is responsible for key features.

The overall design of the game evokes the era of the modern oil man, with pumpjacks and barrels among the well-designed symbols.

The soundtrack features woodwind instruments and an electronic keyboard, playing a funky tune. 

If you are looking for a more traditional book game with high variance, try the Book of Dead slot available here at Slots Temple in demo mode. 

Book of Oil RTP and Variance 

The RTP of this slot is a healthy 96.05% and the game displays high variance in extended play, meaning players need to be patient and take advantage of the bet spread in the early stages of their session.
 

How to Play Book of Oil

The game has no complicated rules, but here are a few tips in your quest for black gold.

1. On the main game screen, look to the left hand side of the dashboard below the reels.
2. Here you can adjust the number of lines you wish to bet on and the size of your wager. The total bet will show next to this button.
3. On the right hand side, you can engage turbo spin if you wish to speed up the game, and auto spin. The latter immediately engages the feature, with no chance to customise, and must be halted manually by re-pressing the button.
4. In the top left you can mute the soundtrack, via the speaker icon.
5. Now click on the information button in the same area of the screen and open more details, beginning with the paytable.
6. Scroll down for a description of the wild.
7. Below this is a description of the free spins feature and the expanding symbols.
8. Scroll down for a full explanation of the gamble feature, and finally brief rules and thumbnails of the paylines.
9. Back on the main screen, take a note of the gamble option, indicated by a playing card, which can be activated when a win lands.
10. You are all set to play, simply hit the spin button.

You can enjoy Book of Oil without betting any real money here at Slots Temple and explore the game at no risk.

Once playing at a casino for real cash, set yourself a budget within your means for each session and play responsibly, being prepared to leave the game before chasing losses.

Bet Sizes and Paytable Wins 

Bet sizes in Book of Oil range from a minimum bet of 0.01 on 1 payline, up to a maximum of 100.00 on all 10 paylines. The paytable is as follows:

Oil Man = x5000
Pump Jack= x2000
Barrels/Dollars = x750
Ace/King = x150
Queen/Jack/Ten = x100

Max-win 5,000x

Volatility Medium

Top RTP 96.05%

Book of Oil Bonus Features and Free Spins 

Take your chance in the bonus gamble feature in Book of Oil and double your winnings up to x10. 

After a winning combination the option to play a game of chance is available where the player tries to beat the dealer by selecting one of four downward facing cards. If you continue on a winning streak there are ten chances to keep doubling up. 

Ten free spins are awarded when three or more scatter symbols appear on the reels. A random symbol is selected and can expand when enough symbols land to form a winning line. In this mode of the game their position is irrelevant, to trigger the expansion it is only their number that matters. When enough are in place they expand to cover their respective reels. Big wins are potentially available in this phase of the game.

You can play many more games with a free spin feature in demo mode here at Slots Temple.

Book of Oil Review 

Although the game does not have too many features, the mechanics and high variance make it an exciting game to play, although new players can use the controls to ease their way into the game adjusting lines in play and the total wager.

After extended play we were happy with the RTP and feel confident to recommend it to players who are unfamiliar with this designer’s slots.

Disclaimer: Book of Oil trademark / license is owned by Endorphina. This site is not endorsed by Endorphina.