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Book of 99 Online Slot (5 Reels, 10 Paylines)

Book of 99 Slot
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Welcome to the Book of 99, where players battle amongst the gods in a 99% RTP 'Book of' slot. Collecting 99 books in the Base Game triggers 10 Bonus Spins, an added route to the typical 3-symbol trigger. In this Greek odyssey warriors are welcome, one is chosen at random before heading into the ancient empire in the Bonus Round. Once the mythical character is chosen, it gains expanding abilities in the Bonus Round, growing to fill the whole reel and catapulting win potential up to 5000x one's bet.

Book of 99 Slot Features


Basic Play




Where to Play Book of 99

82 English-language sites offer Book of 99 from any location. edit your preferences

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show listhide list 6 non-English sites offering Book of 99. edit your preferences


Book of 99 Slot News

Relax Gaming expands in Denmark with RoyalCasino
6 July 2021
The deal will see RoyalCasino.dk host the supplier's range of proprietary titles such as Book of 99, Iron Bank and the award-winning Money Train 2. read more
Relax Gaming adds new Sails of Fortune
19 May 2021
Offering 7,776 ways to win, Sails of Fortune invites players to jump aboard a ship and journey to great wins, guided by Mystery Maps and respins. read more
Relax Gaming introduces Book of 99
4 May 2021
Collecting 99 books in the Base Game triggers 10 bonus spins, an added route to the typical three-symbol trigger. read more

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