Free Slot Book Of 99

Characteristics of Book of 99 Slot

Provider Relax Gaming Minimum bet 0.10 ($, €, £)
RTP 99% Maximum bet 100 ($, €, £)
Progressive jackpots No Date of issue May 4, 2021
Custom payline No Paylines 10
Bonus game Yes Bonus feature Free spins, Wild symbols, Expanding symbols
Free spins in the game Yes Max win 12,075x
Automatic play Yes Subject Books
Playing field 5-3

A Review of the Book of 99 Slot Machine

There’s that thrill a game gives you when you know that the developers made an intentional effort to stand out. Usually, with slots, providers choose between picking unusual themes, adding progressive jackpots, or something that will definitely attract gamers. However, Relax Gaming chose to focus on something different, basing the game theme and time in Ancient Greece. Let’s see if this game is worth playing in this book of 99 slot reviews.


  • High 99% RTP
  • High 12,075x stake maximum win
  • Free Spins with Expanding Scatters
  • Low 0.10 minimum bet


  • Takes a while to hit the free spins

The plot of the Book of 99

Book of 99 is another addition to the “Book of” series. However, unlike most others that are set in Ancient Egypt, this slot title is set in Ancient Greece. In this slot title, there are a group of symbols including a monster named Lamia, a cyclops and female and male leads.

Book of 99 gameplay

This Greek action occurs on 5 reels set with 10 fixed paylines. On every reel from the first, winning combinations can be formed by matching symbols to sit opposite each other on a payline. The book symbol is needed to unlock the very best moments in the game.

Graphics and animation

Book of 99 crosses every t’s when it comes to graphics and animation, as it is even extraordinarily beautiful to look at, even in the bonus game. The background in the bonus game is in a sun-drenched type of scene with many beautiful 3D symbols and cartoonish characters depicting villains and protagonists from Ancient Egypt. The music, visuals, sounds, beat and melody here all work together to create perfection in this slot title.

Free spins and bonus game

Like many other lot titles, the free spin feature is one of the highlights of this game, even in the book of 99 dem version. To activate the free spin bonus, you need to land three or more wild symbols then you get welcomed with 10 free spins. If you find three or more wild symbols again, you also get an extra 10 free spins.


Symbol 2 combinations 3 combinations 4 combinations 5 combinations
Greek Hero 1 10 100 500
Sorceress 0.5 4 40 200
Ogre 0.5 3 10 75
Harpy 0.5 3 10 75
A, K - 0.4 4 15
10, Q, J - 0.5 2.5 10


This Relax gaming slot title is the real deal. It is not only different from many other slot titles but it also manages to execute every action and important parts of the gameplay absolutely well. An added bonus is how beautiful it is to just look at this game. With its significantly high RTP, this is a game that every gamer looking to make some profit should definitely try out as it is one of the most generous slots you will find.

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