Relax Gaming rewrites history in Book of 99, where players battle amongst the gods in a first-of-its-kind 99RTP ‘Book of’ slot! Collecting 99 books in the Base Game triggers 10 free 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 Free Spins round, growing to fill the whole reel and catapulting win potential up to 5000x one’s bet!
Licenced casinos to play Book of 99 for real money
100% Bonus up to $/€500 + 225FS
250% Bonus + 125 Free Spins
100% match bonus up to $500 + 30 bonus spins
Book of 99 Video Preview