Book of Monsters

Book of Monsters Overview

Book of Monsters, developed by Pragmatic Play, is a high volatility video slot with an RTP rate of 96.50%. This game operates on a Cluster Pays system, requiring players to match at least 5 symbols either horizontally or vertically across a 7×7 grid. In addition, the betting options range from a minimum of €0,20 to a maximum of €240,00. The slot offers a potential maximum payout of up to 5,000x the initial bet.

Book of Monsters Theme

Book of Monsters presents a vibrant design, with the gameplay unfolding within a cave shrouded in neon blue and purple mist. To the right of the playing area, an animated monster book levitates beside a kettle from which neon green vapours escape.

Additionally, the reels are adorned with symbols ranging from J-A figures, each carved into stones, alongside three distinct monster figures. This enchanting visual theme is complemented by a harmonious soundtrack that enriches the immersive gaming experience.

Bonuses & Features

Free Spins: The Free Spins feature is activated when players land 4, 5, 6, or 7 Bonus symbols, awarding them 5, 6, 7, or 8 Free Spins, correspondingly. At the beginning of the Free Spins round, one random paying symbol is selected as the Fat symbol.

Players can choose to gamble to either upgrade the Fat symbol to a higher value or increase their number of Free Spins for the forthcoming round. Alternatively, they may commence the Free Spins immediately with the existing Fat symbol and number of spins.

In the gamble phase for the Fat symbol, as pages in a book flip, they either reveal a higher value symbol or display “THE END.” If a higher value symbol is revealed, it becomes the new Fat symbol for the duration of the round; however, if “THE END” appears, the gambling session concludes.

The gamble for additional Free Spins follows a similar format, with players potentially increasing their total up to 8 Free Spins or attaining the maximum value Fat symbol.

Once players decide to collect their current Free Spins and Fat symbol or reach the gambling limit, the Free Spins round begins. This round includes a progressive feature where a 1×1 Fat symbol randomly moves with each spin. Non-overlaying symbols that match the Fat symbol accumulate in a meter. As players collect symbols, the Fat symbol expands in size as follows:

• Collect 30 symbols for a 2×2 size.
• Collect an additional 27 for 3×3.
• Collect another 24 for 4×4.
• Collect 20 more for 5×5.
• Collect 16 more for 6×6.
• Collect 12 more for a final size of 7×7.

Ante Bet: This feature improves the odds of triggering the Free Spins, reducing the necessary Bonus symbols from 4 to 3, thus enhancing the activation likelihood by 7x.

Buy Bonus: This option allows players to directly enter the Free Spins round by purchasing it for 100x their current total bet, with 4 to 7 Bonus symbols appearing randomly on the trigger spin.

Conclusion

Book of Monsters offers an engaging Free Spins feature with the unique addition of the Fat symbol mechanic, enhancing both gameplay excitement and potential rewards. The option to gamble for improved symbols or additional spins adds a strategic layer, while the Ante Bet and Buy Bonus features provide more flexibility in gameplay. This slot not only promises substantial payouts with its expanding symbols and additional spins but also maintains a high level of player engagement through its innovative features and dynamic design.