Book of 99

*All games have been played and tested by us in a neutral environment that is not dependent on or influenced by any Casino or game provider.

Game Content

We play slots in the hope that Lady Luck is on our side, yet the Book of 99 by Relax Gaming pushes Lady Luck to one side and more or less guarantees success. Well, to a 99% certainty anyway. Important to note that the RTP is 99%, not your win rate. There is a difference.

Book of 99 Game Play

Setting the scene in Ancient Greece, players battle the Gods in the Book of 99 video slot. Relax Gaming’s latest 5×3 with 10 paylines adventure comes with a Free Spins feature where an expanding symbol fills the reel whenever it hits. This game comes with a 5,000 x bet max win and a staggering 99% RTP rate. Your potential for clawing back your bet lands at a very reasonable 29.83%, which is as about as good as it gets.  

99 Wild Collection

We know that looks can be deceiving, and while the Book of 99 by Relax Gaming looks great and plays well, other defining features make this game stand out. The 99 Wild Collection is a fabulous add-on to a game that already pays well. The wild collection system is a great little add-on as an added reward for persistent players.

Bagging three Book Scatter symbols will lead you to the glory of Ancient Greece with 10 Free Spins, as will collecting 99 wilds. Each time a wild symbol lands, it’s collected in a meter to the left of the reels. This Collection feature leads you along a treasure map. Collect all 99 wilds and you’ll trigger the free spins.

Expanding Symbol

Once the bonus round has been triggered, your chosen symbol expands to cover all win lines, which increases the potential payout. The maximum win in one spin is 5,000x for a full screen of expanding symbols, with low-paying symbols requiring 3 of a kind to expand, and premium symbols only requiring 2 of a kind to expand.

Safer Gambling Features

The safer gambling element of this game is limited. Basically what you get here is a good old-fashioned dose of self-restraint, or in other words, this is just a spin and win the game with a basic autoplay mode.

Bonus Feature

Free Spins

The Book of 99 by Relax Gaming has all the classic Book of… Bonus options. Spin and drop three or more scatter symbols and the Free Spins feature is triggered. You are then taken to the actual Book feature which reveals your Bonus symbol, and the spins begin. You start with 10 free spins.

Prizes in this game are good, with some tasty big pots added to the game once you’ve triggered the free spins. It took us a while to bag the three scatter symbols, but it was worth the wait. The expanding wilds are a great little add-on.

Gamble Feature

There is no gamble feature as such in this game, just good old-fashioned reels and spins with good graphics and a soundtrack.

Conclusion

Before we get caught up in the headlining feature of this game, the 99% RTP, let’s not jump to conclusions and judge this book game by its cover. Relax Gaming’s fabulous RTP is not the defining factor in this game, the wonderful gameplay add-ons are. The Expanding wilds, the fabulous 99 Wild Collect Feature, and the ancient Greek theme make this game pop. Relax Gaming knows how to put on a show, and the Book of 99 is all that and more. 99% more.

Mind you, a 99% RTP is not to be sniffed at, and a 29.83% win rate equates to roughly 1/3 wins. Which is great, even if not all wins cover your bets. For example, playing a £1 game and winning 50p doesn’t cover your bet, but it does count as a win. That said, this is a good game and a popular one too. Hats off to Relax Gaming for giving us all a better-than-average chance at walking away a winner. After all, RTP stands for Return to Player, right?

What does the 99% RTP mean?

RTP is the Return to Player percentage that this game offers. It is not a guarantee that you win 99/100 spins, nor is it a guarantee that you’ll win your money back. But this game does payout more frequently than most games.

We’ve had the discussion Does it pay out more, in our “Does a 99% RTP game pay out more” post, and although that question was answered with an emphatic NO, however, it does payout more frequently. Does it make it a better game? NO, Graphics, soundtrack, and spin play make them better games.

Other games in the high RTP range include:

99% RTP – Ed Jones & Book of Bastet Deluxe by Fugaso
97.93% – Book of Secrets: Extra Dice by Synot Games
97.74% – Book of Sun: Choice by Booongo
97.63% – Book of Aztec: Bonus Buy by Amatic Studios
97.40% – Book of Nibiru by 1Spin4Win

Game Developer

Relax Gaming’s tasty selection of Book of… games brings diversity to an already impressive games portfolio. Other Book games include the Book of Destiny, the Book of Gods, and the Book of Power.

Age Verification

All slot/casino games are gambling-related and for adults only. Proof of ID is always needed when registering with any online Casino where this game is available. 18+ BeGambleAware.org

Where to play Book of 99 by Relax Gaming

Responsible Play – Adults Only Game

18+. When selecting an online Casino, all welcome bonuses refer to new players or first-time depositors only. Wagering requirements always apply unless specified. Bonuses, RTP %, Providers, Casinos, Games and Wagering requirements may change depending on where you play. Free games and promotions are for funded players unless specified. Withdrawing funds requires proof of an ID. Always read full T&C’s before playing.

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