March 16, 2023 3 min read


Yggdrasil and Peter & Sons Release New Slot Book of Books

The new title combines the recognizable Peter & Sons art with engaging mechanics from Yggdrasil, delivering supreme experience for online players

Popular iGaming publisher Yggdrasil announced the launch of a new slot title released in collaboration with Peter & Sons called Book of Books. The new slot that can offer up to 40 paylines features Peter & Sons’ unique art style while delivering engaging options such as win multipliers, expanding symbols and free spins.

The Book of Books slot stands out with quality sound effects and graphics. At the same time, besides the engaging and rewarding bonus features, the game offers auto-play and buy bonus options.

Book of Books Metrics Overview

  • Reels: 5
  • Rows: 3
  • Paylines: 40
  • RTP: 96.1%
  • Hit Freq: 33.26%
  • Max Win: €500,000
  • Volatility: High
  • Min/Max Bet: €0.1/€50
  • Release date: March 16, 2023

Another Engaging Slot Game from Yggdrasil

Yann Bautista, Peter & Sons’ business development manager, said that the company is delighted to collaborate with Yggdrasil to deliver unique gaming experiences. He pointed out that the new game makes a fine addition to the “Book of” game-style series that has enjoyed popularity. Finally, Bautista said that Peter & Sons remains committed to delivering engaging content and predicted that the new slot would be well received.

Book of Books is a game that we’ve been looking forward to releasing for some time now.

Stuart McCarthy, head of product and programs at Yggdrasil

Stuart McCarthy, Yggdrasil’s head of product and programs, added that the release of Book of Books was much anticipated. He spoke about the attractive features that the new game offers and acknowledged that the title combines Peter & Sons’ art style with classic game mechanics. Finally, McCarthy said: “We’re thrilled that the YG Masters program continues to facilitate excellent game development, and this is another shining example.”

The New Game Offers Rewarding Features, Bonuses

Book of Books is a game that offers win multipliers and expanding symbols. Those features can result in a max win of up to 10,000x for the players. The standard play features a 5×3 grid with 10 paylines.

If a player lands three scatter symbols, they can befit from seven free spins during base gameplay. However, if four of five scatter symbols land on the reels, online players can access a 5×4 or 5×5 grid offering 20 or 40 paylines.

In case a player lands two scatter symbols, they help build a free spins bonus, which can then award a random powerup. “Powerups include additional free spins, expanding symbols and expanding win multipliers worth 1x or 2x,” explains Yggdrasil.

Last but not least, Book of Books offers a Golden Bet feature. This unique bonus option helps increase the chance for the players to trigger a bonus feature. For some jurisdictions, a buy bonus feature is also available that can multiply the bet between 120x and 500x.


Jerome is a welcome new addition to the Gambling News team, bringing years of journalistic experience within the iGaming sector. His interest in the industry begun after he graduated from college where he played in regular local poker tournaments which eventually lead to exposure towards the growing popularity of online poker and casino rooms. Jerome now puts all the knowledge he's accrued to fuel his passion for journalism, providing our team with the latest scoops online.

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