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The “Book of…” slot style has become a huge hit. From its humble roots with the Book of Ra Deluxe slot through to big hits like the Book of Dead slot, the simple mechanic has connected with audiences. For those that don’t know, the “Book of…” games typically consist of some sort of ancient or adventurous theme and use an Expanding Symbol mechanic in the Free Spins Round. Peter & Sons has now taken the concept to the next level, with the Book of Books slot, at least according to its title, setting out to be the ultimate “Book of…” game. Does it succeed, though? Let’s take it for a spin and find out in this Book of Books slot review.
Peter & Sons’ visual style is incredibly unique, and it does a great job of making slots stand out. The game is set in a medieval kingdom, a refreshing change for a “Book of…” game. The reels are encased in black stones on either side, with several animated characters sitting around the grid, playing music and jigging about. It’s a cool design that instantly injects the slot with tons of personality.
The Book of Books slot may look quirky, but the base game is fairly conventional. The slot uses a 5x3 set-up with 10 paylines. However, this can increase during the bonus rounds, with the game able to offer up to 40 lines and five symbols on each row.
All of the other standard features you would expect to find are present and correct. The stake is adjusted under the reels, with a minimum bet of $0.10 and a maximum of $50. This is a good range that is probably going to please those on smaller budgets. The slot also uses an Autospin feature and a Turbo feature, with the availability of the latter depending on your location.
The quirky design of Book of Books has no problem moving onto mobile devices. Peter & Sons has developed the slot using HTML5 technology. This ensures it runs on both desktop and mobile platforms. You can take the game for a spin at a range of top new online casino sites that offer mobile gaming options.
It is in the bonus features that Peter & Sons has really made the Book of Books slot stand out from other “Book of…” games. Firstly, whenever players land two Scatters in the game, they will be rewarded with a random Power Up feature. This Power Up can be one or two extra spins, an Expanding Multiplier, or an additional Expanding Symbol.
The main bonus feature in the slot is the Free Spins Round. Three or more Scatters launch this. Players get given seven spins. If they launch it with three Scatters, the grid stays as normal; if four launch it, then the grid expands to 5x4 with 20 paylines; and if five launch it, then the grid becomes 5x5 with 40 paylines. The grid will reset at the end of the Free Spins Round.
During the round, any Power Up features that have been collected will be triggered. There is also the obligatory Expanding Symbol feature, but Peter & Sons has put a twist on it. The selected symbol changes on each spin and is displayed on the side of the reels. If the symbol can expand to create a win, then it will do so. You can retrigger the spins by landing two Scatters. Landing more than that will restart the session with additional Powers up active.
The Book of Books slot offers players a maximum payout of 10,000x their stake. This is a good amount and is the kind we’ve become accustomed to seeing in the better “Book of…” real money slot games. The slot also has a generous RTP of 96.10%, putting it above average. It has been given a high volatility rating by Peter & Sons.
Peter & Sons is one of the most underrated developers in the slot industry, and players would be wise not to sleep on a game like Book of Books. The slot takes everything players love about the well-established “Book of…" formula and puts an entirely fresh spin on it. It boasts an impressive design, some good winning potential, and a selection of features that feel both new and familiar. This is a slot well worth digging out at our highlighted online casino slot sites that provide it.
Karolis Matulis is an SEO Content Editor at Casinos.com with more than 5 years of experience in the online gambling industry. Karolis has written and edited dozens of slot and casino reviews and has played and tested thousands of online slot games. So if there's a new slot title coming out soon, you better know it – Karolis has already tried it.
The Book of Books online slot game was developed by Peter & Sons and released by their partner company, Yggdrasil Gaming. Both Peter & Sons and Yggdrasil are well-respected slot developers with a catalog of unique titles under their belts.
No, but that would be an easy mistake to make. Book of Books uses a popular gameplay mechanic that has become fashionable in slots with the “Book of…” title. This involves the use of Expanding Symbols during the Free Spins Bonus.
The Book of Books slot game can be accessed at any casino that offers games from Yggdrasil and Peter & Son. The game can be played on both desktop and mobile casino websites.
The biggest win that is on offer in the Book of Books online slot game is 10,000x the player’s stake. The game does not specify how a player can win this amount. However, it is likely won during the bonus rounds.
The Book of Books slot game was released by Peter & Sons and Yggdrasil on March 16th, 2023, and can be played at a range of top online casinos.
Yes! Book of Books is 100% fair. The game uses a random number generator to determine the outcome of each spin. This means each result is randomly generated, ensuring fairness. If you have any doubts about a specific online casino, you can always log off and go to another one.
The Book of Books slot game is considered to be highly volatile by Peter & Sons and Yggdrasil. This means that players should not expect to score regular big wins when playing Book of Books.
The Book of Books slot starts with five reels, three rows, and 10 paylines. However, when you trigger the bonus rounds, the reels can expand, and so can the number of paylines. Depending on the size of the grid, the game can have 20 or 40 paylines.
Yes! The Book of Books slot has a fun Free Spins Round. This is triggered when players land three or more Scatter symbols. Landing four or five Scatters will see the size of the reels expand, and additional paylines added.
Absolutely! The Book of Books slot has been developed with mobile players in mind. The game is fully optimised to run on both mobile and desktop devices, with the slot working on Android and iOS operating systems and popular mobile browsers.
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