Book of Books

Book of Books

The Book of Books slot takes players on an adventure through ancient scrolls and mystical symbols. With a focus on uncovering hidden secrets through its reels and engaging bonus features, it offers an immersive gaming experience set against a backdrop of enigmatic themes and captivating graphics.

Play Button

About The Game

Welcome to Book of Books, a high volatility Video Slot with expanding symbols, a collect feature to power up your free spins game and a free spins game with up to 10 expanding symbols, up to a 5x5 panel and 40 paylines, powerups and retriggers.

The order of the Peregrin hides under the robes of musicians and minstrels. They guard the biggest secret known to man. The book of books, father of all books, source of all power and wealth.

Main Game

The main game has a 5x3 panel with 10 Paylines evaluated from left to right. Wilds substitute for any other symbol except the Scatter. Scatters do not pay.

  • 2 scatters award a power-up.
  • 3 or more scatters trigger the free spins game.


Landing 2 Scatters award any of the following features that are added to your free spins session:

  • 1 or 2 additional free spins.
  • An additional expanding Symbol.
  • A x1 or x2 expanding multiplier that multiplies winnings from expanding symbols. Collected expanding multipliers are added together.

Free Spins

Free spins are triggered when 3, 4, or 5 scatters land into the panel. Free spins are played with the same bet as the activating spin.

  • With 3 Scatters, free spins are played on a 5x3 panel and 10 paylines.
  • With 4 Scatters, free spins are played on a 5x4 panel and 20 paylines.
  • With 5 Scatters, free spins are played on a 5x5 panel and 40 paylines.

7 free spins are awarded plus any extra free spin powerups collected. The free spins game is played with all collected power-ups. Powerups are reset when the free spin session ends. When a regular win is calculated, if there are expanding symbols in the panel, these expand to cover the whole reel where they are located, and an additional prize is awarded. At the beginning of each free spin, the active expanding symbols are randomly selected. Expanding symbols can not be substituted by Wilds and they pay even on non-adjacent positions. Expanding symbols pay at 10 paylines independent of panel size. Free spins can be retriggered, 2 or more Scatters award extra free spins, powerups, and panel resize as follows:

  • 2 Scatters award 1 free spin and 1 random power-up.
  • 3 Scatters award 3 free spins and 1 random power-up.
  • 4 Scatters award 5 free spins, 1 random power up and resizes the panel to 5x4.
  • 5 Scatters award 7 free spins, 1 random power up and resizes the panel to 5x5.

The number of free spins is displayed in the top left counter, the multiplier applied to the expanding symbols is displayed in the top right counter, and the current spin expanding symbols are displayed under the panel.

How To Calculate Payline Wins

  • To calculate your total payline win, calculate all payline wins and add them together.
  • To calculate a single payline win, count the number of identical symbols lined up in sequence on the line starting from the leftmost reel.
  • If two or more identical symbols are lined up, find the win value in the dynamic Pay Table. There, you can find the value for all symbols from 2 in a row to 5 in a row. Only the highest winning combination per line is paid out.
  • If the winning combination starts with three wilds, there can be many ways to interpret the win. In this scenario, only the highest win combination is paid out.
  • The above doesn't include Free Spin symbols, which do not need to be on a payline to award a prize.
  • After the Free Spins round is completed, all wins are added to any win from the game that activated the Free Spins.

Game Menu

Click the menu icon to expand or collapse the menu tray.

  • Pay Table – Find how much each symbol pays out, explanations of the game features, and information on the paylines.
  • Game History – If this feature is enabled on your gaming website, you may review and replay your last 10 game rounds.
  • Game Rules – Opens the rules of the game.

(Some features and options may not be available in your jurisdiction)

Game Panel

  • Click the menu icon to expand or collapse the menu tray.
  • Sound – (if applicable) Turns the sounds on or off.
  • Cash Bet - Displays the current bet.
  • Spin Button – Places the bet and spins the reels. When the reels are spinning, the spin button transforms into the Stop Button (Stop Button may be disabled). Pressing the Stop Button stops the reels immediately.
  • Autoplay Button - (if applicable) You can use Autoplay to play several game rounds automatically. It can be disabled at any time. Press the ‘Autoplay’ button to access the Autoplay menu. Choose the number of rounds. 
  • Select the Loss Limit (if applicable). Select the Max Single Win (if applicable). 
  • Start Autoplay by pressing the ‘Start’ button. You can see the number of Rounds remaining on the Stop button. 
  • When Autoplay is running, all remaining rounds are cancelled by pressing the Stop button.
  • Fast play Button - (if applicable) Press to enable or disable fast play of game rounds.
  • Win – Displays the win for the current or last win payout step.
  • Balance – Displays the player's account balance.

(Some features and options may not be available in your jurisdiction)

Keyboard Shortcuts

  • Space Bar – Press the space bar to spin on the desktop.

Return To Player

  • The expected payback reflects the theoretical return across a very large number of spins by numerous players over an extended period of time and cannot be affected by the player's strategy.
  • The overall theoretical return to player is 90.5%

Additional Information

  • The reels are spun with a fair and equal chance for each stop position by a certified random number generator.
  • If your game is interrupted during play, you may replay the game round after restarting the game within 22 hours after interruption. After that time, any winnings from an interrupted game will be added to your account. If you choose to skip the replay, your win will be added to your balance immediately.
  • In any situation where the replay functionality is not sufficient, please contact the support team of your gaming website.
  • In the event of a malfunction of the gaming hardware/software, all affected game bets and payouts are rendered void, and all affected bets are refunded.

*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.