Book of 99

Sofresh/ July 20, 2021/ Relax Gaming

The Book of 99 slot game was released by the very successful and innovative gaming software provider, Relax Gaming. This company was founded in 2010 and is headquartered in St. Julians, Malta. This slot game is one of their latest releases (in the time of writing), released in May 2021. So you can expect some seriously innovative gameplay with a wide range of features. Along with top-notch 3D graphics, animations and sound effects. They offer an exciting jackpot of 15,000x your inital stake with a maximum bet of $100. It’s high volatile though, so take this into account.

The theme of the game is inspired by Ancient Greece. So you’ll go back in time and immerse yourself in a world full of Ancient Greek mythology. Expect to see some greek mythological heroes and villains on your screens, such as Cyclopes and Lamia. You will have to battle the famous one-eyed villain Cyclopes to earn your riches. The background consists of nighttime scenery with dark figures emerging throughout the game, with the reels within marble columns. A mysterious and slightly unsettling background soundtrack will play throughout. But fear not, all characters are designed in a comic book style which lightens the mood.


Type: Video Slots
Software provider: Relax Gaming
Reels: 5
Rows: 3
Maximum win: 15,000x
Paylines: 10
Minimum bet: $0.10
Maximum bet: $100
Release date: May 4, 2021
RTP: 99%
Slot variance: HIGH
Mobile: Yes

What is the largest amount of money that you can win on Book of 99?

Although this jackpot isn’t as large as the other slot games that we’ve included on this website, we’ve included it because of the extremely high RTP at 99%. Book of 99 is known for providing players with many decent wins regularly. You can win 15,000x times your inital bet with a maximum bet of $100. So there’s $150,000 up for grabs.

Symbols & Payouts:

Male character: 5/4/3/2 = 500x, 100x, 10x, 1x
Female character: 5/4/3/2 = 200x, 40x, 4x, 0.50x
Cyclopes: 5/4/3/2 = 75x, 10x, 3x, 0.50
Lamia: 5/4/3 = 75x, 10x, 3x, 0.50x

Main Bonus Features

Free Spins feature

The Free Spins feature will be activated if you find three or more wild symbols anywhere on the reels during one spin. If you’re lucky enough to find them, you will be instantly be rewarded with 10 free spins. But what makes this feature to the regular free spin rounds is before they start, a symbol will be chosen at random. This symbol will then act as an expanding symbol during all of the free spin rounds. If this symbol lands again it will expand to the whole of the reel. So, there’s a chance to win lots of extra cash. The maximum win depends on which symbol becomes the special expanding symbol.

Collection feature

The Collection feature is activated all throughout the game and acts as enough way to reward free spin rounds. Every time a wild symbol lands on the reels, it will be collected into the collection bonus feature which is situated on the left-hand side of the reels. Next to it, you’ll see a treasure map, with every wild found you will move one step forward on the treasure map… slowly heading towards free spin rounds and potentially the maximum win. You will need a total of 99 wilds to trigger the free spins rounds. You can win up to 30!

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