Book of Monsters makes a pleasant first impression. Visually, it resembles other monster-themed games from the provider, such as Monster Superlanche, but still retains its uniqueness. Detailed drawing of the environment makes the picture rich and alive. Book of Monsters skillfully uses giant symbols and their gradual increase, creating a dynamic and effective gameplay.
Type of game | Video slots |
Manufacturer |
![]() |
Theme | Fantasy, Fairy Tales, Monster, Books |
Min bet | 0.20 € |
Max bet | 480 € |
RTP | 95.5% |
Max payout | 5000 : 1 |
Is free test available | Yes |
Mobile version | Yes |
Issue date | March 21, 2025 |
Reels number | 7 |
Wilds | No |
Scatter | No |
Gamble Feature | No |
Volatility | High |
3D slot | No |
Respins | No |
Freespins | Yes |
Progressive multipliers | No |
Bonus games | Free Spins, Bonus Bet, Mega Symbols, Buy Feature, Cluster Pays, Symbols collection, Level Up, Additional Free Spins, RTP range, Scatter symbols |
Since the Book of Monsters
- is a well-known developer, its slots can be found in many online casinos. However, there are also sites with a dubious reputation, where the games of this provider are also presented. To avoid unpleasant surprises, choose verified casinos from our rating and play Book of Monsters
safely.
To understand the interface and learn the rules, try free demo. It is available in the same casinos where Book of Monsters is presented. And if you don't want to look for a site, just start the demo right at the beginning of this page.
The best way to learn the game is to try it without risk!
Monsters. This will save you from having to search for the site yourself, as not every casino has this game. The list is placed at the end of the review and includes only reliable operators from our top. For your convenience, we have prepared separate reviews for each site to make it easier for you to make a choice.
Book of Monsters is a video slot from Pragmatic Play with a 7×7 grid and Cluster Pays payout system, where a minimum of 5 connected symbols horizontally or vertically are required to form a win. The bet size varies from 0.2 to 240 credits. The maximum winnings reach 5000x of the bet. The probability of winning the top prize is 1 in 547,945 spins, and the bonus round is triggered an average of once per 291 spins.
The free spins round is activated when 4, 5, 6 or 7 scatters fall on the reels in one spin. Depending on the number of scatters, the player gets 5, 6, 7 or 8 free spins. If Ante Bet mode is activated, the bonus can be triggered already with 3 scatter, getting 4 free spins. Before the round starts, Book Of Monsters opens, which randomly selects one of the regular symbols and turns it into a Fat Symbol. Players who have this option can pay a certain amount to try and improve the selected symbol or get extra freespins. However, be careful: if "The End" is displayed when trying to improve, the bonus round will end before it begins.
Initially, the "Fat Symbol" appears in a standard 1×1 size and moves to random positions on the reels with each spin. All of its regular versions appearing on the field are collected and increase its size:30 symbols collected → increase to 2×2
Each increase in the level of the Fat Symbol brings an additional 1-3 free spins, which extends the bonus round and increases the chances of a big win.
Familiarize yourself with the characteristics that affect your Book of Monsters winnings:
RTP range is the standard value of 95.5%, but casinos may choose other settings.
High volatility - wins are less frequent, but they can be significant.
Book of Monsters | 1 Reel Medusa | Relic Hunters and the Book of Faith | Athena’s Glory – Twilight Of The Gods | Mystery Kingdom: Mystery Bells | Book of Piggy Bank | |
---|---|---|---|---|---|---|
RTP | 95.50 % | 95.42 % | 96.37 % | 96.29 % | 96.13 % | 96.14 % |
Volatility | High | High | Middle | Middle | High | High |
Lines | 1 | 20 | 50 | 10 | ||
Drums | 7 | 1 | 6 | 5 | 4 | 6 |
Issue date | 21 March 2025 | 15 January 2024 | 4 October 2019 | 1 July 2024 | 2 March 2023 | 5 July 2022 |
Progressive jackpot | ||||||
Scatters | ||||||
Free Spins | ||||||
Respins | ||||||
Progressive multipliers | ||||||
Jokers | ||||||
Max payout | 5000 | 500 | 750 | 450 | 750 | 10000 |
Bonus Games | ||||||
Gamble Feature |
In slots, there is no way to directly influence the course of the game. The only thing the player can do is to adjust the bet size and start the spin. However, these actions have no effect on the symbols that appear. All of them are selected randomly with the help of a random number generator.
It is impossible to predict or change the operation of the slot, so strategies based on manipulation of results have no application here.
Slot machine | RTP | Volatility | Max win | Release date |
---|---|---|---|---|
Jackpot Hunter | 96 % | High | 5000 | 25 July 2024 |
African Elephant | 96.04 % | High | 15000 | April 2023 |
Queenie | 95.44 % | High | 4200 | 25 February 2022 |
Fruit Rainbow | 96.53 % | 2000 | 2 March 2020 | |
Jade Butterfly | 96.47 % | Middle | 4000 | 19 June 2018 |
The interface of the game is divided into several main elements. In the center is the playing field, with buttons to buy bonuses, which will probably be combined into one in a future update. In the lower left part of the screen there are system settings, volume control options and an information button (i icon). In the center of the screen is available help information about the current game process. On the right side are buttons to start spins, autospin and adjust the bet using the "+ and -" buttons.
In order to start playing in Book of Monsters, follow these steps:
Choose a trusted casino.
Familiarize yourself with the game by trying the demo.
Set your bet size.
Read the game rules in the help section.
Select between manual spins and autospin.
Play the mobile version of Book of Monsters
directly on your smartphone or tablet. The slot will launch automatically if you open it on your Android or iOS device. The mobile version has an adaptive interface that adjusts to the screen size and changes orientation depending on the device (landscape or portrait).
First of all, it's worth noting that Pragmatic Play have added the Ante Bet feature, which is a big plus. In my opinion, the base game rarely yields significant wins as expected, but the occasional random fat symbols can add some nice bonuses from time to time. Now on to the bonus round, which is the main part of the game. During the test, increasing the Fat symbol to an impressive size happened quite often. This is especially useful as all symbols are collected, not just the ones that create winning combinations. The extra free spins that come with each level give you the chance to keep playing, and watching the Fat symbol gradually get bigger is really exciting. The 5000x win limit is well within reach, especially if you increase the symbol to a 7x7 size during the bonus round.
5000x
480
95.5%
Type of game | Video slots |
Manufacturer |
![]() |
Theme | Fantasy, Fairy Tales, Monster, Books |
Min bet | 0.20 € |
Max bet | 480 € |
RTP | 95.5% |
Max payout | 5000 : 1 |
Is free test available | Yes |
Mobile version | Yes |
Issue date | March 21, 2025 |
Reels number | 7 |
Wilds | No |
Scatter | No |
Gamble Feature | No |
Volatility | High |
3D slot | No |
Respins | No |
Freespins | Yes |
Progressive multipliers | No |
Bonus games | Free Spins, Bonus Bet, Mega Symbols, Buy Feature, Cluster Pays, Symbols collection, Level Up, Additional Free Spins, RTP range, Scatter symbols |