Book of 99 Demo [Mythology-Themed Slot by Relax Gaming]

Before playing Book of 99 demo mode, this overall review might be of great help to you. The 10-pay line online slot machine Book of 99 demo & real game was created by Relax Gaming provider. 

A bonus meter, symbol collection feature, expanding symbols, and free spins were among the features. The RTP of this high volatility slot is 99%, and the top prize is worth 12,075x.

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Book of 99 Demo Play

Return to Player99.0%
Game CategorySlots
Game ProviderRelax Gaming
Payout SystemWinlines

Book of 99 Review

Book of 99 Theme & Plot

Book of 99 Demo Play

This slot is inspired by: classical Greek mythology.

The Book of 99 Demo game will take place in an enchanted land where cyclops, goddesses, and heroic figures live. Players may feel like Odysseus on his adventures as they face a rugged landscape and a clear blue sea.

Mythology fans will be overjoyed to find this magical slot, and newcomers to mythology will enjoy discovering its secrets.

Animations & Soundtracks

The soothing soundtrack of waves, bird calls, and whistling wind create an enveloping atmosphere. Most players will probably relish having the ambient noise on because it is so relaxing. The reels drop with a satisfying shuffle and a mystical melody.

There are many intriguing characters on the reels, including a cyclops, a siren who seems supernatural, and a hooded goddess. Players will want to participate in each one’s adventure because they all seem to have just come from Homer’s Odyssey.

The setting is a breathtaking nightscape of a rocky island in the middle of a blue sea. Deep purple clouds float overhead, and ominous black birds fly by on occasion, giving the world a realistic feel.

Overall, the game’s beautiful animation and thoughtful soundtrack transport the player right into the world of ancient mythology.

Also read: Burning Power Slot Review (RTP 95.51%)

Book of 99 Demo: Gameplay

Book of 99 is a five-reel, three-row slot machine with ten paylines. The Free Spins feature, which begins with 10 free spins, is activated when the player lands three or more Wild symbols.

The special expanding symbol that appears during the Free Spins feature is chosen at random. This symbol will be able to grow and provide more chances to win.

Wilds, Bonus & Free Spins

The Wild symbol replaces all symbols except the special expanding symbol that appears during the Free Spins feature. When the player lands a Wild symbol, the collection meter advances by one step. When the meter is full, the Free Spins feature is activated.

The average bet the player placed while collecting Wilds will be used as the betting level for any free spins that the meter triggers.


We recommend this Book of 99 Demo mythology-themed slot machine with a very high RTP and high volatility. There’s no reason not to play this game with such a high RTP, you can play at gambling sites like slot jackpot terbesar. The game’s high volatility and beautiful animation seal the deal, making it an excellent choice.