
Book of 99
- Game Provider
- Relax Gaming
- RTP
- 99%
- Maximum Win
- Unknown
Play Book of 99 Demo for Free
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Basic Information
Payout System | Winlines |
Progressive Jackpot | No |
Configurable winlines | No |
Free spins | Yes |
Autoplay | Yes |
Quickspin feature | Yes |
Gamble feature | No |
Bonus feature | No |
Number of winlines | 10 |
Layout | 3-3-3-3-3 |
Minimum Bet | $0.1 |
Maximum Bet | $100 |
Release Date | May 2021 |
Book of 99 Review
Well, well, well. Another «Book of» slot, eh? But hold your horses, folks. This isn’t your run-of-the-mill Egyptian snooze fest. Relax Gaming has decided to shake things up by taking us on a Grecian adventure, and boy, have they nailed it.
First off, let’s talk about that jaw-dropping 99% RTP. Yes, you read that right. It’s like Relax Gaming is practically begging us to take their money. But don’t get too excited — this is still a high volatility slot, so prepare for some serious ups and downs.
Greek Mythology Meets Slot Madness
The theme here is a refreshing change from the usual dusty tombs and mummies. We’re talking Cyclops, sirens, and enough Greek gods to make Zeus jealous. The graphics are top-notch, with a nighttime island backdrop that’s more atmospheric than a moody teenager’s bedroom.
The soundtrack? It’s not going to win any Grammy’s, but it’s pleasant enough. Think gentle waves and mystical melodies — perfect for when you’re trying to convince yourself that «just one more spin» is a good idea.
Gameplay That’ll Make You Say «By Zeus!»
Now, let’s get to the meat and potatoes. The base game might feel a bit… well, basic. But that’s where the wild collection meter comes in. Every wild you land gets you closer to triggering those sweet, sweet free spins. It’s like a progress bar for your gambling addiction!
Speaking of free spins, you’ve got two ways to trigger them. Land three scatters like a normal person, or collect 99 wilds like a patient saint. Either way, you’re in for a treat with expanding symbols that could lead to wins bigger than Hercules’ biceps.

The Good, The Bad, and The Godly
Look, I’m not going to sugarcoat it. This game can be as brutal as Medusa’s stare. The high volatility means you might go through dry spells longer than Odysseus’ journey. But when it hits, oh boy, it hits harder than Zeus’ lightning bolt.
The 99% RTP is the star of the show here. It’s like Relax Gaming is giving us a wink and a nudge, saying, «Hey, you might actually win something here.» But remember, that’s over the long term. Don’t expect to retire after an hour of play.

Final Verdict: To Play or Not to Play?
If you’re a fan of «Book of» slots but are tired of sand in your virtual shoes, Book of 99 is a breath of fresh Mediterranean air. The theme is engaging, the potential wins are Olympus-sized, and that RTP is more attractive than Aphrodite herself.
Just remember, this slot can be as temperamental as the Greek gods. It might bless you with riches one minute and curse you the next. But isn’t that what makes gambling fun? So grab your toga, pour yourself some virtual wine, and give Book of 99 a spin. Who knows? You might just become a legend.
Where to Play Book of 99 for Real Money
If you’ve already tried the demo version of Book of 99 and are ready to switch to real money play, I recommend checking out Glory Casino. This operator offers reliable access to the game, fast payouts, and 24/7 support.