Book Of 99

The High-RTP Odyssey: Where 99 Books Bring Glory!

Relax Gaming’s Book Of 99 is a thrilling addition to the popular “Book of” genre, standing out from the pack like a lighthouse guiding ships to shore. This game takes players on an epic quest inspired by Homer’s Odyssey, blending high-end design with a math model that is, frankly, unreal.

For those playing in the Great White North or anywhere else, this slot truly offers a compelling reason to stick around.

Written by: Martin Hansen
Fact Checked by: Alex Ivanov

Game Specs

Provider: Relax Gaming

Release Date: 2021-05-04

Theme: Greek Mythology (Homer’s Odyssey)

Layout: 5 Reels, 3 Rows

Paylines: 10

RTP%: 99% (Note: RTP can vary by casino/jurisdiction, sometimes listed lower)

Variance: High

Player Suitability: Recommended for experienced players

Minimum Bet: C$0.10/spin

Maximum Win Potential: Up to 12,075x your bet

Technology: JS, HTML5

Minimum OS: Compatible with modern mobile browsers on most iOS and Android devices.

Game Size: ≈ 100MB

Key Gameplay Features You Should Look Out For

The features in Book Of 99 might look familiar at first glance, but Relax Gaming has introduced a brilliant twist. While the high variance promises massive win potential, the defining characteristic here is its record-breaking 99% RTP, coupled with an ingenious Collection Meter. This meter gives every player a second, guaranteed path to the Free Spins round, adding a layer of exciting predictability to an otherwise highly volatile experience.

The headline feature is the whopping 99% Return to Player (RTP) rate. This is exceptionally generous for the slot industry, offering some of the best long-term theoretical returns available.

Players do not have to rely solely on landing three scatter symbols. The game features a unique meter where every Book Wild/Scatter symbol landed in the base game is collected. Once you reach 99 collected books, the Free Spins bonus is guaranteed to trigger, representing Odysseus finally completing his long journey home.

Like its famous relatives in the genre, landing three scatters (or filling the meter) awards 10 Free Spins. Before the spins begin, a pay symbol is chosen at random to become the special expanding symbol. These symbols expand to cover the entire reel, paying out across all 10 lines even if they are not adjacent, leading to the biggest possible wins.

Top Strategies & Wins Reported by Fans

The community consensus often focuses on the generous 99% returns, which is considered the ultimate strategy itself for bankroll longevity. Experienced users sometimes adjust their play based on the Book Collection Meter. A commonly discussed approach is:

Staking Up Near the Trigger: Since the collection feature guarantees a bonus after 99 symbols, some players suggest increasing the stake once the meter approaches the 90-mark. The reasoning is that the collected feature trigger will happen soon, and the ensuing Free Spins will pay out based on the stake used when the feature is awarded. This method requires careful budget management, though, as high variance can mean several missed opportunities before success.

Now let’s see what this user had shared with regards to his biggest Book of 99 win:

Graphics & Sound

The design of Book of 99 instantly sets a mood, drawing inspiration from ancient Greek mythology. The presentation feels polished and distinct, proving that a classic genre can still surprise players.

The graphics use a striking, comic-book style aesthetic. Symbols feature characters like Odysseus, the priestess Pythia, and the dreaded Cyclops, all rendered with clean, powerful lines. It’s a superb visual experience, making every spin crisp and engaging.

The soundtrack is evocative and fittingly exotic, successfully building a tense yet adventurous tone. The audio work couples perfectly with the visuals to create a legendary atmosphere as you spin, eh.

Recent News

Relax Gaming remains active in developing cutting-edge content and technology. While the original Book of 99 release was a few years ago, the provider continues to push boundaries:

New Content Streams: Relax Gaming has recently released new titles like Snake Arena 2: Kinesis Unleashed and Treasure Tumble Dream Drop (as of November 2025), showing a steady stream of unique game concepts.

Tech Innovations: The developer continues to innovate with in-game mechanics. For instance, they recently introduced Bonus Reels™, a new bet option designed to let players significantly boost their odds of entering bonus rounds in their games.

Company Growth: Relax Gaming also recently appointed a new Chief Growth Officer, signaling a focus on expansion and optimizing their business strategy across regulated markets.

Final Verdict:

Book Of 99 is an absolute must-play for anyone who appreciates the classic “Book of” format but seeks superior math. Relax Gaming successfully merged high-volatility action with an unprecedented 99% RTP and the delightful Book Collection feature. It’s a beautifully designed, high-potential game that delivers huge value. If you’re hunting for big wins with great theoretical returns, this odyssey is your destination, for sure.

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