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Book of Monsters Review
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Book of Monsters is a 7-reel slot developed by Pragmatic Play, with a 95.5% RTP, high volatility, and a 5000x maximum win. This game centres on its expansive 7-reel grid and the potential for expanding symbols during the free spins feature, offering a familiar “Book of” style experience with a larger canvas. Available at Ontario iGaming-licensed casinos regulated by the AGCO.
Book of Monsters is a slot that leans heavily into the familiar “Book of” mechanic, but expands the canvas to a 7-reel grid. Players who enjoy the anticipation of special expanding symbols in free spins and can tolerate longer periods between significant wins will find a lot to like here. If you’re looking for constant base-game action or frequent small payouts, this particular adventure might feel a bit slow.
Quick Verdict
- Best for: Players who appreciate the classic “Book of” free spins mechanic and enjoy the increased potential offered by a larger grid.
- Not ideal for: Players who prefer fast-paced base games with frequent, smaller wins, or those who dislike features that can require significant patience to trigger.
- Standout: The 7-reel grid combined with the expanding symbol mechanic in free spins, offering a fresh take on a beloved format.
- Watch out for: The high volatility means wins can be infrequent, and the free spins feature, while powerful, can be elusive.
- Rating: 8.0/10 – Book of Monsters delivers a solid, expanded take on a classic slot formula, offering substantial potential for those who can weather its inherent variance.
| Specification | Details |
|---|---|
| Provider | Pragmatic Play |
| RTP (Global) | 95.5% |
| RTP (Ontario) | Not independently verified. Check the in-game info panel at your Ontario casino. |
| Volatility | 5 (High) |
| Max Win | 5000x |
| Min Bet (CAD) | 0.20 |
| Max Bet (CAD) | 480.00 |
| Paylines | Fixed |
| Reels | 7 |
| Released | March 27, 2025 |
| Tested at | BetMGM |
How Book of Monsters Actually Plays
Book of Monsters presents its action across a generous 7-reel grid, a departure from the more common 5-reel setups. This larger grid, combined with fixed paylines, means that winning combinations can form in more ways, but the core gameplay rhythm remains familiar to fans of the “Book of” series. The game features a standard symbol hierarchy, with higher-paying symbols like monsters and lower-paying card royals. Landing clusters of matching symbols across the fixed paylines is how you’ll build wins in the base game. However, don’t expect constant action; the high volatility means the base game can feel quiet for extended periods as it builds towards the main event. The true potential of Book of Monsters is clearly housed within its free spins feature. While the 7-reel setup offers more opportunities for symbols to land, the overall feel is one of anticipation, where each spin is a step closer to triggering the bonus round, which is where the game truly comes alive and the larger win potential is unlocked. The game’s pace is deliberate, focusing on the build-up to the free spins rather than delivering frequent small wins in the base game.
Bonus Features
Free Spins
The primary bonus feature in Book of Monsters is its free spins round, which is triggered by landing three or more Scatter symbols anywhere on the reels. The Scatter symbol in this game is represented by the Book of Monsters itself. When three Scatters land, you’ll be awarded 10 free spins. If you manage to land four Scatters, you’ll receive 15 free spins, and five Scatters will grant you a generous 25 free spins. Before the free spins begin, one symbol is randomly chosen to become a special expanding symbol for the duration of the feature. When this chosen symbol lands on a reel during the free spins, it will expand to cover the entire reel, provided it contributes to a winning combination. This expanding symbol mechanic is the heart of the “Book of” style gameplay and is where the game’s maximum win potential of 5000x your bet is most likely to be reached. The free spins cannot be retriggered within the feature itself, meaning your initial allocation of spins is all you’ll get. This lack of retrigger capability emphasizes the importance of the initial symbol selection and the number of free spins awarded. The feature is the clear focal point, and while it can be elusive, the prospect of those expanding symbols making big payouts is what drives the gameplay.
RTP and Volatility: What to Expect
Book of Monsters comes with a confirmed global RTP of 95.5%. This figure sits slightly below the current average for online slots available in Ontario, which typically hovers around 96%. It’s crucial for players to understand that RTP is a long-term theoretical calculation based on millions of game spins. Your individual session results will almost certainly differ, and this RTP means that, over an extended period, the game is designed to return 95.5% of all wagered funds to players. The confirmed volatility rating of 5, indicating high volatility, is a significant factor in how the game plays. This means that wins are likely to be infrequent, but when they do occur, they have the potential to be quite substantial. Players should expect periods of little to no wins, especially in the base game, before hitting larger payouts. This high variance nature means that the game is best suited for players who are comfortable with this type of risk and are not looking for consistent, small returns. It’s a game where extended sessions required, and bankrolls may need to withstand dry spells in anticipation of those bigger payouts, which are primarily concentrated within the free spins feature.
Where to Play Book of Monsters in Ontario
Players in Ontario can find Book of Monsters at several reputable online casinos that hold current iGaming Ontario registrations. These operators offer a secure and regulated environment for playing.
- BetMGM: Known for its extensive game library and frequent promotions tailored for Ontario players.
- Bet365: Offers a streamlined user experience and competitive odds across its casino and sportsbook offerings.
- Caesars: Provides a loyalty program that can offer added benefits for regular players.
- BetRivers: Features a user-friendly interface and a strong focus on responsible gambling tools.
- FanDuel: A popular choice for its intuitive app and diverse selection of slot titles.
All listed operators hold current iGaming Ontario registrations, verified at igamingontario.ca/en/operator.
Mobile Experience
Playing Book of Monsters on a mobile device, whether it’s a smartphone or tablet, should offer a smooth experience thanks to Pragmatic Play’s focus on mobile optimisation. The 7-reel grid, while larger than standard, is designed to adapt well to smaller screens. You’ll likely find that the game interface remains clear, with the spin button, bet controls, and information menus easily accessible without obscuring the main gameplay area. During the free spins feature, the expanding symbols should animate clearly, and the chosen expanding symbol will be highlighted, making it easy to follow the action even on a smaller display. Accessing the game’s information panel, where you can check paytables and feature details, should also be straightforward, typically through a dedicated icon. The touch controls for spinning and adjusting bets are usually responsive, ensuring a fluid gaming session on the go.
Our Verdict
CanadaCasinos.io Rating: 8.0/10
- Bonus Features: 8.5/10
- RTP Value: 7.0/10
- Volatility Suitability: 8.0/10
- Mobile: 8.5/10
- Design: 7.5/10
Book of Monsters is a strong contender for players who enjoy the classic “Book of” style of slot but are looking for a slightly expanded experience. The 7-reel grid adds a new dimension, and the free spins feature with its expanding symbols still delivers that sought-after thrill and significant win potential. However, its high volatility and slightly below-average RTP mean it’s suits a specific player type; players seeking frequent base-game wins or a lower-risk profile might want to look elsewhere. If you have the patience for potentially long dry spells and are chasing those big feature payouts, Book of Monsters is certainly worth exploring.
Frequently Asked Questions
What is the RTP of Book of Monsters?
Book of Monsters has a globally reported RTP of 95.5%. It’s important to note that RTP is a theoretical figure calculated over millions of spins. Your actual results in any given session may vary significantly. Always check the game’s information screen at your chosen Ontario casino for the most accurate RTP details, as some operators may offer different versions.
Is Book of Monsters available at Ontario casinos?
Book of Monsters is available at select iGaming Ontario-licensed casinos. You can find this Pragmatic Play title at reputable operators such as BetMGM, bet365, Caesars, BetRivers, and FanDuel, among others. All these platforms are regulated by the Alcohol and Gaming Commission of Ontario (AGCO).
How do you trigger the bonus in Book of Monsters?
Book of Monsters’ free spins feature is triggered by landing Scatter symbols. The process is as follows:
- Land 3 Scatter symbols anywhere on the reels to receive 10 free spins.
- Land 4 Scatter symbols anywhere on the reels to receive 15 free spins.
- Land 5 Scatter symbols anywhere on the reels to receive 25 free spins.
Before the free spins begin, a special symbol will be randomly selected to act as an expanding symbol throughout the feature.
What is the maximum win in Book of Monsters?
Book of Monsters — the maximum win potential in Book of Monsters is capped at 5000 times your bet. This substantial payout is primarily achievable during the free spins feature, especially when the randomly selected expanding symbol lands favourably across the 7-reel grid. Achieving this top win requires a combination of luck and strategic symbol formation during the bonus round.
Is Book of Monsters available on mobile?
Book of Monsters is fully optimised for mobile play and is available on iOS and Android devices. The game’s interface is designed to be responsive, ensuring that the 7-reel grid and all game features are easily accessible and clearly displayed on smartphones and tablets. You can expect a smooth and engaging experience whether you’re playing at home or on the go.
What makes Book of Monsters different from other “Book of” slots?
Book of Monsters distinguishes itself primarily through its expanded 7-reel grid, offering more space for winning combinations compared to the traditional 5-reel layouts found in many other “Book of” titles. While the core mechanic of a randomly selected expanding symbol during free spins remains, the larger grid can potentially lead to more frequent or larger wins when that symbol appears, enhancing the familiar gameplay with a fresh dynamic.
How does the 7-reel grid affect gameplay?
Book of Monsters — the 7-reel grid in Book of Monsters provides a larger playing field, which can increase the number of potential winning combinations and symbol landing opportunities. This expanded format means that when the special expanding symbol appears during the free spins feature, it has a greater chance of forming winning lines across the increased number of reels, potentially leading to bigger payouts than typically seen on a 5-reel setup of the same game type.
Responsible Gambling
Gambling involves financial risk. Must be 19+ to play at Ontario-licensed casinos. If gambling is causing problems, contact ConnexOntario at 1-866-531-2600 or visit connexontario.ca. All games listed are available at iGaming Ontario-licensed operators regulated by the AGCO.
Where to Play Book of Monsters
