Book of 99 Slot

Book Of 99 Slot Overview

The focus of this review is the Book Of 99 slot game by Relax Gaming. It’s so-called because it has an RTP of 99%, which is incredibly high for an online slot game. It’s one of the many new online slots to come out in 2021 and is sure to attract many players thanks to its RTP. There’s more to the slot, however, and in this review we’ll let you know what else the slot has to offer. Carry on reading then play the Book Of 99 slot for real money if you like what you read.

How To Play The Book Of 99 Slot

The current bet size is displayed beneath the gaming grid. If you want to change it, use the plus and minus sign buttons to adjust it. There are multiple options from 0.10 to 100.00 you can choose from. When you’re ready, click the circular button beneath the middle reel to give the reels a spin. To the right of this is a button that turns on autoplay; to the left is a button that makes the reels spin faster when turned on. Line up enough matching symbols on one of the slot’s ten paylines to win. The slot’s RTP of 99% is very high indeed - check out our best payout slots page to find more slot games with high RTPs.

Book Of 99 Slot Features

• Ancient Greece Theme. This online slot game has an ancient Greece theme. The reels are set within a stone shrine structure of some sort that takes up most of the screen. Two mythological creatures appear as high-paying symbols and the other two characters you’ll see are well designed and fit in with the theme. If you’d like to play some similar slot games, check out our page on ancient Greece-themed slots.

• Audio. The slot has a cinematic and atmospheric soundtrack that sounds quite mysterious and adds a lot of tension to the gameplay.

• 10 Paylines. To win and get paid, enough identical symbols have to be lined up adjacently from left to right on one or more of the slot’s paylines. Some symbols pay for two or more on a payline; others require at least three.

• Symbols. Nine standard symbols appear on the slot’s reels. The five low-paying ones are the playing card ranks A, K, Q, J and 10. Each of these incorporates a coloured gem into its design. The four more valuable symbols are Lamia (a child-eating monster), a cyclops, a female character in a purple cloak and a male character. The high-paying symbols pay for two or more on a payline; the other symbols pay for three or more. The male character is the most rewarding, paying you 500x your bet for a win with five.

• Bonus Symbols. The slot’s one and only bonus symbol is a book with 99 on it in Greek-style writing. Like with other book-themed slots, this symbol functions as both a wild and a scatter. It substitutes for all other symbols and triggers the free spins round if enough instances of it land.

Book Of 99 Bonus Features

• Free Spins. You receive ten free spins whenever three or more book symbols appear. Before the round starts, one of the standard symbols is chosen to become the special expanding symbol. This symbol expands to fill the reel it’s on whenever doing so gives you a win. It doesn’t need to be on adjacent reels for you to win with it. Note that the wild doesn’t substitute for the special expanding symbol.

• Collection. To the left of the reels is a collection metre. This increases by 1 for every wild that lands on the reels during the base game. When 99 wilds are collected, the free spins round gets triggered. The bet size used for the round is the average bet size used when collecting the wilds.

Play Book Of 99 on Mobile

If you’d like to play this slot on your phone or tablet, you can do so very easily. All you have to do is visit a Relax Gaming casino on your mobile device and you should find this slot listed there and waiting to be played. Be sure to visit our mobile slots page if you’re after some more slots you can play on the go.

Play The Book Of 99 Slot For Real Money

What makes this online slot game stand out from others is without a doubt its very high RTP of 99%. If you’re a fan of playing slots for real money, you simply have to give this one a try thanks to its very impressive return rate. The features are comparable with ‘Book of…’ slots, but can still be fun and worthwhile. Visit our Relax Gaming section if you want to give some of the provider’s other slot games a try.