Book of 99

Book of 99 by Relax Gaming might seem like just another ‘book of’ slot, but don’t let that fool you—this game packs a serious punch. It brings an epic 99% RTP to the table, which is nearly unheard of in the world of online slots. Set against the backdrop of Ancient Greece, Book of 99 offers a simple yet highly volatile gameplay experience, spiced up with free spins, expanding symbols, and a unique wild collection feature. Let’s crack open this ancient book and see why Book of 99 has become a standout in a crowded market!

Theme & Visuals – A Greek Odyssey

While many ‘book of’ slots stick to Egyptian themes, Book of 99 takes you on a journey through Ancient Greece. The game’s setting features temples, mythological beasts, and heroic figures—all with a bold and polished design that’s typical of Relax Gaming. The symbols on the reels are a mix of low-paying card symbols (10 to A) and high-paying mythological characters, including heroes and monsters straight out of Greek lore. The soundtrack adds to the mystical vibe, creating an immersive experience that complements the slot’s theme.

Gameplay – Classic ‘Book of’ Mechanics with a Twist

Book of 99 follows the tried-and-true ‘book of’ formula, featuring 5 reels, 3 rows, and 10 fixed paylines. The aim is to land winning combinations from left to right on adjacent reels. The game is highly volatile, offering the potential for big payouts if the reels line up in your favor. With bets ranging from €0.10 to €100 per spin, there’s a wide range of stakes to suit all types of players.

However, what sets this game apart from the pack is its remarkable 99% RTP. This is one of the highest RTPs you’ll find in any online slot, giving players a better shot at reclaiming their wagers over time. High volatility and high RTP make for a thrilling combination, and this balance keeps the game feeling fresh, even during long sessions.

Features – Unlocking the Ancient Secrets

Like most ‘book of’ slots, Book of 99 revolves around the Book of Dead symbol, which serves as both a wild and a scatter. This book can substitute for any symbol to help form winning combinations and also triggers the game’s main bonus feature: free spins with expanding symbols.

Free Spins with Expanding Symbols

Land three or more book symbols, and you’ll trigger the free spins round, receiving 10 free spins to start. Before the free spins begin, one symbol is chosen at random to become the Special Expanding Symbol. This symbol can expand to cover entire reels when it lands, leading to massive payouts if you’re lucky enough to get the high-paying symbols. Expanding symbols pay all ways, meaning they don’t need to be on adjacent reels, making the free spins feature especially lucrative.

The free spins can be retriggered by landing three or more book symbols during the feature, giving you an additional 10 spins and even more chances to rack up those big wins.

Wild Collection Feature

In addition to the traditional free spins round, Book of 99 introduces a unique Wild Collection Feature. Every time a wild symbol lands during the base game, it’s added to a collection meter located on the side of the screen. Once you’ve collected 99 wilds, you’re awarded 10 free spins. It’s a neat feature that gives you something to work toward during base game play and adds an extra layer of excitement, especially during longer sessions.

Verdict – Is Book of 99 Worth the Hype?

Book of 99 is a refreshing addition to the ‘book of’ genre, thanks to its stellar 99% RTP and the engaging wild collection system. While it sticks closely to the traditional formula of expanding symbols and free spins, these small tweaks make a big difference in keeping players engaged. The high volatility adds to the thrill, while the high RTP provides a bit of comfort that your bankroll may last longer than in most other slots.

If you’re a fan of ‘book of’ slots but are looking for something with a little extra edge, Book of 99 is a must-try. Its combination of Greek mythology, stunning visuals, and player-friendly RTP makes it one of the best options in its genre, offering a fresh take on a classic slot format.