Book of 99

Provider: Relax
Unravel the Mysteries of Ancient Greece in a High RTP Slot

Embark on a thrilling journey with Book of 99, a slot game by Relax Gaming. With a generous 99% RTP and exciting features, this game is a must-try for slot enthusiasts. Dive into our detailed review to learn more.

Book of 99

3 Number of rows
0.1 Minimum stake
10 Paylines
5 Wheels


Maximum profit (x Your stake)



Book of 99

Book of 99

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Book of 99

Profit information

Maximum profit (x Your stake)


Maximum stake
Minimum stake

Book of 99 review

Book of 99 offers a unique blend of ancient Greek mythology and modern slot gaming. With a 99% RTP, it’s an online slot that promises excitement and rewards!

You can try out this game at LuckyDays casino.

Book of 99 Slot - Emirates Casino Slot Review
Book of 99 Slot

What you’ll find in this Book of 99 Review

We’ve thoroughly reviewed Book of 99, examining every aspect of the game. Our review includes:

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Book of 99 Symbols & Payouts

Explore the symbols and payouts of Book of 99, including paylines, betting options, RTP, and more.

The Symbols

The game features ancient Greek symbols, including characters from Homer’s Odyssey, such as Lamia, Cyclopes, Pythia, and Apollo.

Book of 99 Slot Highest Paying Symbol- Emirates Casino Slot Review
Book of 99 Lowest Paying Symbol
Book of 99 Slot Lowest Paying Symbol- Emirates Casino Slot Review
Book of 99 Highest Paying Symbol
  • Ancient Greek Symbols: The game’s theme is deeply rooted in Greek mythology, featuring characters from Homer’s Odyssey.
  • Lamia: A female daemon, one of the higher-paying symbols.
  • Cyclopes: The one-eyed monster is also among the higher-paying symbols.
  • Pythia: Another high-paying symbol, possibly representing a priestess or oracle.
  • Apollo: The highest-paying symbol, representing the Greek god of music, arts, knowledge, and more.
  • Wild/Scatter Symbol: The Book symbol acts as both a wild and scatter, triggering free spins and substituting for other symbols.


With 10 paylines, Book of 99 pays from left to right, offering multiple winning combinations.

Min/max bet, autoplay option

Betting Range: Players can bet from €0.1 to €100 per spin, accommodating both low and high rollers.

Autoplay Feature: This allows players to set a predetermined number of spins to play automatically, providing a more streamlined gaming experience.

Book of 99 RTP

99% RTP: This is an exceptionally high Return to Player percentage, making the game more attractive to players as it theoretically returns 99% of all wagers over time.


High Volatility: This means that wins may be less frequent but tend to be more substantial when they occur. It appeals to players looking for bigger, albeit riskier, rewards.

Jackpot and/or maximum win

The game does not feature a progressive jackpot, but players can win up to 12075x their bet, resulting in significant payouts depending on the bet size.

A Generous Payout Structure
I found the symbols and payouts to be well-designed and generous, making the game appealing to both new and experienced players.

Game Features

Book of 99 Slot Features- Emirates Casino Slot Review

Book of 99 offers exciting features like wilds, re-spins, and more.

Wilds, re-spins, and other features

Wild symbols substitute for others and trigger free spins, while re-spins add excitement.

  • Wild Symbols: The Book symbol acts as a wild, substituting for other symbols to create winning combinations and triggering free spins.
  • Re-spins: Although the game doesn’t have a specific re-spin feature, the free spins, and expanding symbols can add excitement similar to re-spins.

Bonus Buy

No Bonus Buy Option: Book of 99 does not offer a bonus buy option, focusing instead on its unique collection system and high RTP.

Book of 99 Graphics & Sound

Optimized for Mobile👍
MusicAncient Greek-themed
Special featuresExpanding symbols, wild collection
Book of 99 Slot Graphics - Emirates Casino Slot Review
Immersive Experience
I enjoyed the graphics and sound, which created an immersive ancient Greek experience.

Troubleshooting Common Issues with Book of 99

  1. Game Interruption: Should the game be interrupted for any reason, simply restart the session and replay the game round.
  2. Need Support?: If you encounter any issues, don’t hesitate to reach out to the support team of the gaming website you’re playing on.
  3. Malfunction Policy: Be aware that if there’s a malfunction in the gaming hardware/software, all bets and payouts affected by the issue will be voided, and the affected bets will be refunded.

Unraveling the Book of 99

Book of 99 is a remarkable addition to the world of online slots, setting itself apart with a staggering 99% RTP. This Greek mythology-themed game offers players an engaging journey through ancient lands, filled with intriguing symbols and rewarding paylines. The game’s unique mechanics, such as the collection of ancient scrolls to trigger free spins, add a layer of excitement and strategy that keeps players invested. While the absence of a bonus-buy option might deter some, the overall design, graphics, and sound create an immersive experience that more than compensates. The volatility level caters to a wide audience, making it suitable for both casual gamers and high rollers. Book of 99 is not just another slot game; it’s a well-crafted adventure that offers a fresh and rewarding experience. Its blend of innovation, entertainment, and potential for big wins makes it a standout choice for anyone looking to explore a new and exciting slot game. Whether you’re a fan of Greek mythology or simply in search of a high RTP slot, Book of 99 is a game that promises to deliver on all fronts.

Other slots to play if you like Book of 99 slot


  • What is the Book of 99 RTP?
    The Book of 99 RTP rate is 99%.
  • What is the Book of 99 max win?
    The biggest possible win is 12075x your total bet.
  • Are there any Book of 99 free spins?
    Yes, the Free Spins feature is activated by landing 3 wild books.
  • How does the Collection feature work?
    Collect 99 wilds to trigger free spins.
  • Is there a Book of 99 free play version?
    Yes, you can play the Book of 99 demo on various online platforms.
  • Can I buy a bonus round in Book of 99?
    No, Book of 99 does not offer a bonus buy option.

Casino Expert
Raguia is the Content Writer for the UAE market. She has been a writer since the early 2000s, specializing first in journalism, then social media and now content writing. She likes to follow casino trends and stay up to date with the ins and outs of the gaming industry. She plans her next trip if she isn't trying, testing and reviewing casinos. She speaks five languages, has visited 37 countries, and will keep travelling while playing online.
Book of 99


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