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Book of 99 Slot Online from Relax Gaming

8.0/10
Software
Layout
5-3
RTP
99.0%
Jackpot Game
No
Release Date
2021
Slot lines
10
Volatility
High
Scatter Symbol
Yes
Technology
JS, HTML5
Slot reels
5
Max. win
x12075
Wild symbol
Yes
Min. bet
0.1
Free spins
Yes
Symbol Stacked
No
Casino slot types
Slot Theme
Ancient civilizations
Max. bet
100
Bonus game
No
Multiplier
Yes

This review was last updated: 

Book of 99 free play

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Where to Play Book of 99

Book of 99 slot

Book of 99 is a slot game developed by Relax Gaming on May 4, 2021. As an HTML5 slot, it runs well on both mobile and desktop devices. This game has 10 paylines on its 5 reels with an ancient Greek theme. Its matching symbols, fun graphics, and fantastic audio allow gamblers to get immersed.

Additionally, the free spins feature can start in 2 different ways. Whichever way brings you to this round, you’ll have a chance to increase your winning potential from the expanding symbol. Lastly, Relax Gaming provides players with an above-average return to player (RTP) of 99% and a maximum payout that’s 12,075 times your bet.

Bonus Features

Relax Gaming has great free spins features in Book of 99. There are 2 ways to access it for greater wins. Overall, Book of 99 is an amazing online slot with fun features. Expect to have a fun time while playing this game.

Game Symbols

Book of 99 has an ancient Greek theme with matching symbols. The low-value symbols are the royal playing cards 10 through Ace, and they have gemstones embedded in them. At the same time, the high-value symbols are Lamia, the cyclopes, a heroine, and a hero.

Bonus Rounds & Free Spins

There are 2 ways to start the free spins round. The first is to get 3 book symbols to appear on the reels, and you’ll get 10 free spins. During this round, a random character becomes an expanding symbol. When it appears, it’ll expand to fill all of the reels and pay as a scatter would. This round can re-trigger by landing 3 more wild symbols.

The second way to trigger free spins is the collection feature. Every time a wild appears on the reels, the collection meter on the left goes up. Once you have 99 wilds, the free spins round will start. A random symbol becomes an expanding character. Once you finish your spins, the meter will reset.

Book of 99 Hits & Misses

Relax Gaming has created a fun ancient-themed game, but there are a few disappointing things. Book of 99 succeeds and fails in the following areas:

  • Advantages

  • A high RTP
  • Multiple bonus rounds
  • Free spins trigger in 2 ways
  • Classic game style
  • Limitations

  • Big wins are hard to get
  • Has a low rating among gamblers

Conclusion

What makes Book of 99 stands out is its high RTP. It’ll be hard to find a game with a higher rate. Book of 99 also has impressive visuals and audio that go along with its bonus features. This slot is an excellent option if you enjoy ancient-themed games.

Conrad Brennan
Former Author
University of Toronto
BA of Business and Marketing
Expert in:
  • Games reviews
  • Slot reviews
Reviewed by Head of Content:
Dmitry Rogalchuk
Last updated on: 17.02.2024

FAQ

What is the RTP of Book of 99?

The RTP for Book of 99 is 99%, which is significantly higher than other slots. The game has high volatility, and the maximum payout is 12,075 times your stake.

How Does the Collection Feature Work?

If any wild symbols appear when you spin the reels, it will increase the collection meter. It’ll be full after you get 99 symbols, and it’ll trigger the free spins round.

Can You Re-trigger the Free Spins Round?

Yes, you can re-trigger this round by getting 3 or more scatter symbols. That’ll get you 10 more spins for each to re-trigger the mode.

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