Book of Oil

Book of Oil 400x600

Book of Oil Review

Game Specifications

Mechanics: 5-reels • 3-lines • 10-Game

Features: expanding symbols

Return to Player (RTP): 96.5% *can vary between casino sites

Volatility: High – Medium

Developer: Endorphina

Rating: 7.5/10 Stars.

Comment: Brilliant new theme in a game that hasn’t got what it takes. Interesting game though, with a brilliant gamble feature

*All games have been played and tested by us in a neutral environment that is not dependent on or influenced by any Casino or game provider.

Game Content

The Book of Oil is a strange game. Not strange to play, just the concept and idea are a little strange, sort of an 80s’ nod to JR Ewing and the Dallas team. That said, it’s a good game to play. The graphics aren’t great, and the soundtrack is a little dull, but there is more to this game that meets the eye.

It looks like an old-fashioned Book of… classic that won’t sit on the top of too many lists, nor will it be on the bottom. As with all Book games, this game is easy to play, and for the most part enjoyable up to a point. That said, it comes with a warning, game play is fast, especially in auto-mode.

Safer Gambling Features

This game comes with a 5 star rated Safer Gambling features. All of which, are run through the autoplay mode. These stop-safe features are numerous and customisable. You can limit the number of Spins, Play time, Stop when Single Win, Stop when balance decreased by, and Stop when balance increased. All of which need to be manually adjusted but are worth the effort and act as a handy way to control your gambling.

The Book of Oil comes with a fabulous statistics chart too This lets you know exactly how much you’ve played, won, and most importantly lost. This is the most important tool in the game, so make sure you use it. Having live play info is crucial when it comes to a safer gambling environment for players.

Bonus Features

Free Spins

The Book of Oil is built around the classic scatter symbols that you’d normally get with any Book of… slot. Three Book of… symbols trigger the Bonus spins and you are then taken to the actual Book which reveals your Bonus symbol, and the spins begin. You start with 10 free spins.

Prizes in this game are not massive, but you get to win a surprising amount of times. I dropped a few big pots in this game too. Including, the Free Spins that just kept adding free spins. No complaints here!

Gamble Feature
Bonus Pop feature

This game comes with a “Bonus pop” feature which is a Buy feature. You need to opt-in for this feature and it will cost you 6900x your bet to guarantee 3 Book scatter symbols, which lead to 10 Free Spins. “Free” being a poor choice of words, as this is an expensive feature that you don’t need. Once chosen, your funds are debited the amount and you are taken to the Bonus round.

In order to make this feature pay for itself, you need to win more than your starting fee. The cheapest buy-in is €6.90, but with a starting bet of €0.10 and an average win of between €0.20 – €0.60, you’ll need a small miracle to break even. It’s possible, but I’ve tested similar features on hundreds of games and probably evened out 10 times. My advice is to play the game the way it’s meant to be played, one spin at a time.

Book of Oil Game Conclusion

What appears to be a basic Book of… game is in fact, a basic Book of.. game, but there is depth to the Book of Oil that you have to dig deep to find (excusing the pun). The features that come with this game make it a playable game, which is annoying, as I really wanted to dislike this game. That said, it isn’t going to make any top 10 lists anytime soon, and with the exception of the fabulous Gamble Feature and the Bonus Pop feature, there isn’t much to this game.

Endorphina are masters at making game themes stand out, and they have done too, just not in a way that warrants the Endorphina badge. This game producer is one of my favourites, with games that stand out. The Book of Conquistador, or the Book of Vlad comes to mind, but the Book of Oil isn’t in that league.

Game Developer
Endorphina logo

Age Verification

All slot/casino games are gambling-related and for adults only. Proof of ID is always needed when registering with any online Casino where this game is available. 18+ BeGambleAware.org

Responsible Play – Adults-Only Game

18+. When selecting an online Casino, all welcome bonuses refer to new players or first-time depositors only. Wagering requirements always apply unless specified. Bonuses, RTP %, Providers, Casinos, Games and Wagering requirements may change depending on where you play. Free games and promotions are for funded players unless specified. Withdrawing funds requires proof of an ID. Always read full T&C’s before playing.

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