Book of Books

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Rules and Gameplay

The Book of Books slot game, developed by Peter & Sons, offers a refreshing and quirky twist to the traditional ‘book of’ slots genre. Set in a whimsical medieval forest, players embark on a gaming journey with a base grid of 5 reels and 10 paylines that can expand up to a 5×5 grid with 40 paylines in the Free Spins feature. Bets range from $0.10 to $50 per spin, catering to a wide range of players. The gameplay becomes more intriguing with the Golden Bet feature, which, when activated, increases the stake by 50% to enhance the chances of entering the bonus rounds. The game is known for its high volatility and an RTP of 96.1%, promising a blend of suspense and potentially high rewards.

Bonus Features

Book of Books is packed with unique bonus features that elevate the gaming experience:

  • Golden Bet: Increases the stake by 50% to boost the chances of triggering the Free Spins feature.
  • Free Spins: Triggered by landing 3 or more scatters, offering a base of 7 free spins with the potential for more through collected power-ups.
  • Expanding Symbols: In the Free Spins feature, symbols are randomly chosen to expand across reels, enhancing winning potential.
  • Power Up Feature: Landing 2 scatters in the base game adds power-ups to the next bonus round, including extra free spins, expanding symbols, or multipliers.
  • Bonus Buy: Available in some jurisdictions, allowing players to directly enter the Free Spins feature at a cost.

These features, combined with the innovative expanding grid system, ensure a dynamic and engaging gameplay experience.


The game features a mix of medieval-themed symbols and traditional card suits, each with its own value:

  • Low-value symbols: Clubs, Diamonds, Spades, and Hearts.
  • High-value symbols: Axes, Swords, Hammers, and character symbols including the Knight, Red Character, and the King.
  • Wild symbol: The gold coin, substituting for pay symbols and offering payouts equivalent to the top-tier King symbol.
  • Scatter symbol: The Book, triggering the Free Spins feature and collecting power-ups.

These symbols enrich the game’s medieval theme and play crucial roles in unlocking the slot’s features and rewards.


Book of Books offers an array of payout opportunities, with premium symbols and feature activations leading to significant wins:

Symbol 2 of a Kind 3 of a Kind 4 of a Kind 5 of a Kind
King $1 $8 $40 $150
Wild $1 $8 $40 $150
Red Character $0.5 $5 $20 $80

With a maximum win potential of up to 10,000 times your stake, the game promises both excitement and the chance for substantial rewards.


The Book of Books starts with 10 paylines on a 5×3 grid, but this can expand during the Free Spins feature up to a 5×5 grid with 40 paylines. This expansion increases the number of ways to win, adding an extra layer of excitement to the gameplay. Landing more scatters not only triggers free spins but also enlarges the grid, providing players with more opportunities to hit winning combinations.

Pros & Cons

Pros Cons
Innovative and engaging gameplay with expanding symbols and power-ups. High volatility may not suit all players.
Generous maximum win potential of up to 10,000x stake. The Golden Bet feature increases the stake, which might deter budget-conscious players.
Playable across all devices with stunning graphics and animations. Bonus Buy feature not available in all jurisdictions.

Minimum and Maximum Bet

The Book of Books slot offers a wide betting range to accommodate various player budgets, starting from a minimum bet of $0.10 to a maximum bet of $50 per spin. This range makes the game accessible to casual players and appealing to high rollers looking for bigger stakes.

Game Jackpot

The game’s jackpot stands at an impressive 10,000x the player’s stake per spin. Alongside this significant win potential, the Book of Books slot also features a Return to Player (RTP) rate of 96.1% and falls into the high variance category. This means while wins may be less frequent, they have the potential to be much larger, aligning with the game’s high-risk, high-reward dynamic.

About Provider

Peter & Sons is a creative and innovative game developer known for their distinctive art style and engaging slot mechanics. They have made a name for themselves in the online casino industry by producing slots that are not only visually appealing but also incorporate unique gameplay features and mechanics, setting them apart from traditional slot offerings. Their dedication to quality and originality has earned them a loyal following among slot enthusiasts.

How To Play

  • Start by setting your desired bet amount using the +/- buttons. Bets can range from $0.10 to $50 per spin.
  • Press the spin button to start the game. The reels will spin and then come to a stop, displaying the result.
  • Wins are awarded for matching symbols on paylines, from left to right. Specific combinations trigger bonus features such as Free Spins or the Power Up feature.
  • To enter the Free Spins feature, land 3 or more scatter symbols anywhere on the reels. This feature comes with expanding symbols and the possibility of additional free spins and power-ups.
  • Use the Golden Bet feature to increase your stake by 50% to improve your chances of triggering the Free Spins feature.
  • Keep an eye on your balance and adjust your bet size as needed to ensure a responsible gaming experience.


Book of Books by Peter & Sons stands out in the crowded ‘book of’ slot genre with its unique blend of traditional and innovative elements. With a medieval theme, quirky graphics, and a host of engaging bonus features, it offers a fresh and exciting gaming experience. The game’s high volatility and substantial maximum win potential will appeal to those seeking big wins, while the wide bet range makes it accessible to a variety of players. Whether you’re a fan of ‘book of’ slots or looking for something different, Book of Books is well worth exploring.