Book of 99 (Relax Gaming)

May 28, 2024

Book of 99 is a colorful and mysterious video slot from the provider Relax Gaming. The game is based on the voyage of Odysseus from Greek mythology. During the game it is necessary to collect 99 Wild symbols β€œBook”, so that the ship Odysseus gets to the destination. By doing so, the player triggers a bonus round with 10 free spins. The slot has a high volatility and its RTP reaches 99%. On the playing field there are 3 reels in 5 rows. The maximum multiplier in the slot is x12075 of the initial bet. The game has free spins, Wild symbol, as well as the possibility of autoplay, where you can choose the number of spins up to infinity.

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The main characteristics of the slot

DeveloperRelax Gaming
Release dateMay 2021
Bonus featuresYes
Buying bonusesNo
Minimum bet0.10
Maximum bet100
Maximum winΡ…12075
Number of lines5
Number of reels3
GenreVideo slot
Theme of the gameAncient Greece, Odysseus, Cyclops, Penelope.

Evaluation and our opinion about the Book of 99

πŸ‘ Pros

  • Incredibly high RTP, 99%;
  • Bonus round with free spins;
  • Winnings up to 12075x of the bet.

πŸ‘Ž Cons

  • It is not so fast to reach the 99-book target;
  • Due to high volatility and RTP, winnings don’t fall out often.


Online casino Book of 99 will attract fans of ancient Greek mythology, in particular Homer’s Odyssey. Even a beginner can understand the features of the game, and the desire to quickly collect 99 books adds excitement. After each bonus round in the collected 99 books, the picture on the playing field changes, and this brings fun and innovation.

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Symbols Book of 99

The game has 4 symbols representing the characters of the Odyssey – Odysseus himself, his wife Penelope, Cyclops and Siren, as well as 5 symbols with letters and numbers. The game also has a special Wild symbol with the image of a book.

These symbols and their multipliers are shown below:


  • 5 β€” x500
  • 4 β€” Ρ…100
  • 3 β€” x10
  • 2 β€” x1


  • 5 β€” x200
  • 4 β€” Ρ…40
  • 3 β€” x4
  • 2 β€” x0.50


  • 5 β€” x75
  • 4 β€” Ρ…10
  • 3 β€” x3
  • 2 β€” x0.50


  • 5 β€” x75
  • 4 β€” Ρ…10
  • 3 β€” x3
  • 2 β€” x0.50

The Ace

  • 5 β€” x15
  • 4 β€” Ρ…4
  • 3 β€” x3

The King

  • 5 β€” x15
  • 4 β€” Ρ…4
  • 3 β€” x3

The Queen

  • 5 β€” x10
  • 4 β€” Ρ…2.50
  • 3 β€” x0.50


  • 5 β€” x10
  • 4 β€” Ρ…2.50
  • 3 β€” x0.50

The Ten

  • 5 β€” x10
  • 4 β€” Ρ…2.50
  • 3 β€” x0.50

Book of 99 slot special symbols

In this slot there is one special Wild symbol, with an image of a book, more about it will be described below.

The Book (Wild)

Wild symbols can fall randomly during the game at any time and anywhere on the playing field. Collecting these symbols, the player helps the ship Odysseus to get home, thus moving closer and closer to the bonus round, which gives him 10 free spins. To reach the bonus round, you need to collect 99 of these books. In the case of a simultaneous fallout of 3 such symbols on the playing field, the bonus round also starts with ten free spins. If during the bonus round three book symbols, the player gets another plus 10 free spins.

Special functions in the game Book of 99

The slot Book of 99 has a few special features that will be discussed below.

Book Collection function

 Odysseus’ ship moves one step closer to home for each Wild book symbol that falls on the playing field You need to collect 99 such books to fill the road and bring the brave hero Odysseus to his home, to his beautiful wife Penelope. This gives the player a bonus round, where the book opens on a random page that shows the β€œmain” symbol of the bonus round. This symbol is multiplied when it lands on the playing field, and gives even more winnings.

Autoplay function

In this game you can enable the Autoplay function and watch the reel spin automatically, and if you set the speed to β€œfast play”, the symbols will appear with incredible speed. In the Autoplay function you can choose the number of autospins from 10 to infinity.

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