Book of Monsters (Pragmatic Play) Online Slot Review

By | April 16, 2025

Book of Monsters by Pragmatic Play is a high-volatility online slot that departs from traditional “Book of” themes.

Instead of expanding symbols, it features a 7×7 grid with a cluster pays system, where wins occur by connecting five or more matching symbols.

The game offers an RTP of 96.5% and a maximum win potential of up to 5,000x your stake.​

Set in a whimsical, monster-infested hideout, the game’s backdrop combines eerie blues and purples with playful animations.

The monsters are cartoonish and friendly, contributing to a lighthearted atmosphere.

The soundtrack complements this tone, featuring suspenseful yet playful sounds that enhance the gaming experience.​
Slot Sites Reviews

Features:

Fat Symbol Mechanic: During free spins, a randomly selected symbol becomes the “Fat Symbol.” Collecting matching symbols increases its size, up to a 7×7 grid, with each enlargement awarding additional free spins.​

Free Spins: Triggering the bonus round requires landing 4 or more Bonus symbols. Players can gamble to increase the number of free spins or enhance the Fat Symbol’s size before the bonus begins.​

Ante Bet: Activating this feature doubles the stake to increase the likelihood of triggering the free spins.​

Feature Buy: For 100x the current bet, players can directly purchase the free spins feature, bypassing the base game.​

High-Paying Symbols of this game incudes Red Monster (up to 5,000x), Green Monster, Purple Monster, whereas Low-Paying Symbols contains A, K, Q, J.​

Bonus Symbol: Triggers the free spins feature when 4 or more land on the grid.​

Conclusion

Book of Monsters offers a refreshing take on the “Book of” genre, focusing on a single, well-executed feature—the Fat Symbol mechanic.

Its high volatility and potential for substantial wins make it appealing to players seeking a thrilling slot experience.

While it may lack the variety of bonus features found in other games, its unique approach and engaging design provide a compelling reason to give it a spin.​