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Book of Oil

Book of Oil Endorphina

Book of Oil — play at Playzee

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RTP96.05%
ProviderEndorphina
Reels5
Paylines10

Book of Oil Specifications

SoftwareEndorphina
Type of SlotVideo slot
ThemeOil tycoons
RTP96.05%
Reels5
Paylines10
Scatter SymbolsYes
Bonus RoundsYes
Free SpinsYes
Wild SymbolsYes
Max Jackpot5,000
Progressive JackpotNo
Practice PlayNo
AutoplayYes

Endorphina have taken a different route with Book of Oil, instead of raiding Egyptian tombs for treasure, we go drilling for oil, also known as black gold.

About Book of Oil

Optimised to play across desktop and mobile devices Book of Oil is played across 5 reels with 10 winning ways with a top prize of 5,000 of your stake. Bets range from 10p up to £100 per spin, it has a medium volatility and an RTP of 96.05%.The design is unique for a book slot, inspired by rich oil tycoons. The action takes place on the edge of a desert with a city in the distance, with oil wells and various equipment for extracting oil.Symbols include the low value 10 Ace royal cards, oil barrels, oil pumps, wads of cash and the oil tycoon worth x10 –x500 for 5 matching symbols on a payline. The book is both the scatter and wild and substitutes all symbols.

Gameplay

The bonus round triggers after landing at least 3 scatter symbols for 10 free spins. One random symbol is chosen to become the special expanding symbol and when it lands it fills the entire reel.After any winning combination you have the chance to gamble in the hope of increasing the win. You’ll select one of 4 facedown cards on screen to try and beat the dealer. You can do this up to a maximum of 10 times. If you guess correctly your win is doubled but if the dealer wins you lose the winnings.The Bonus Pop option is available in some jurisdictions (not available in the UK), which allows players to buy into the free spins with a chosen expanding symbol, the cost is determined by your bet value and the choice of symbol.

Verdict

Book of Oil comes has a unique theme although it isn’t packed with features. The bonus round can prove to be lucrative depending on which special symbol is chosen and can lead to the potential prize of 5,000 the bet.

Matthew Kennedy
Co-founder & Technical Director at Play Cash Games

Matthew Kennedy co-founded Take Marketing Limited in 2008 alongside Becky Mosley and has worked in the UK online gambling industry ever since. He runs the technical side of the operation, building and maintaining the platforms that power Play Cash Games and the wider Take Marketing portfolio.

Matt's role is hands-on. He writes the code behind the offer feeds, the comparison tools readers use, and the back-office systems that keep every casino listing accurate and current. If you have used a feature on this site, the chances are he built it. He is also responsible for site performance, mobile usability, and the technical SEO that lets a small independent comparison site compete with much larger publishers.

Over 17 years in the industry, Matt has worked directly with affiliate platforms, casino operators, and software providers. He has seen the market move from desktop Flash slots to mobile-first HTML5, lived through every iteration of UK Gambling Commission rules, and built the systems that keep our coverage compliant as regulation evolves. He has a particular interest in responsible gambling tooling and player-fund safety — the parts of the industry most people do not see but that matter most.

Matt is a Companies House registered director (Take Marketing Limited, company no. 07619813) and is based in Lincolnshire, England.

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