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Book of 99 Online Slot (Relax Gaming)

Book of 99 is a 5 reel, 10 paylines slot from Relax Gaming. This slot has a freespins bonus. Play Book of 99 free demo for fun and try all the features of the game. Read our review below and if you want to play with real money you can find recommended online casinos further down this page.

You have to be 18 years or older to access our demo games. Please confirm that you are at least 18 years old.


Book of 99 Features

RTP ? : 99%

Max Win: 5000x

Slot Rating: 8.6 / 10

Collect Symbols, Expanding Symbols, Retrigger, Scatter Pays, Special Symbol, Wilds,

Slot Themes

Ancient, Books, Creatures, Greek, Heroes, Mythology,
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Book of 99 Slot Review

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5/4/2021 by Casinogamesonnet

Book of 99 is a 5-reel online slot from Relax Gaming. You will find more about the slot and features in this review. Further down this page you can find more popular slots from Relax Gaming.

Book of 99 Features

Collect Symbols, Expanding Symbols, Retrigger, Scatter Pays, Special Symbol, Wilds, are some of the features available in this game. It also has a free spins bonus and if you are lucky this is usually where you can win the big bucks.

Gameplay and Themes

Book of 99 is designed with themes like Ancient, Books, Creatures, Greek, Heroes, Mythology, in mind. The layout of this game is pretty standard and consists of 5 reels with 10 possible paylines.

Book of 99 Slot Screenshot Review

How high is the Book of 99 RTP and Maximum Win?

Here you have the potential to win 5000 times your total bet. This can give you very big wins if you manage to hit some high paying symbols. This value is calculated on a very large number of spins, often a billion spins.

The RTP for Book of 99 is 99%. This is very good and higher than average for an online slot. RTP stands for Return to Player and is the percentage of stakes the game returns to the players. For example, if a player bets €10 the expected return for this game would then be €9.9. However, the RTP value is calculated over millions of spins which means the outcome of every spin will be totally random.

Slot Rating: 8.6 / 10

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Book of 99 Review