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Free Spins

Hit 4, 5, 6, or 7 BONUS symbols to trigger the FREE SPINS feature and win 5, 6, 7, or 8 free spins, respectively.

• A random paying symbol is selected to be the FAT symbol for the subsequent FREE SPINS round.
• Before the round starts, you can gamble separately to increase the value of the FAT symbol to the next higher value or increase the amount of free spins. You can also collect the current FAT symbol and start the round at any time.
• If you gamble for the FAT symbol, a book’s pages turn, and the next higher value symbol is revealed, or “THE END” is shown.
• If “THE END” is revealed, the gamble is lost, and the round ends. If the symbol is revealed, the gamble is won, and the FAT symbol is changed.
• If you gamble for additional free spins, a book’s pages turn, and either a new symbol or “THE END” is shown.
• The chance to win any gamble option depends on the current amount of free spins and the FAT symbol.
• It can only be gambled up to 8 free spins or the highest value symbol.
• The FREE SPINS round starts when you choose to collect the current FAT symbol or when the maximum gambles have been reached.

Progressive Feature

• The FREE SPINS round has a progressive feature with a 1×1 FAT symbol present on the screen.
• Instances of the selected FAT symbol that hit during the round are collected. When certain thresholds are reached, the FAT symbol grows in size.
  1. Collect 30 to level up to 2×2.
  2. Collect 27 more for 3×3.
  3. Collect 24 more for 4×4.
  4. Collect 20 more for 5×5.
  5. Collect 16 more for 6×6.
  6. Collect 12 more for 7×7.
• Each size increase awards 1, 2, or 3 additional free spins.

Max Win

• Maximum win is limited to 5,000x bet in both base game and free spins.
• If the total win reaches 5,000x, the round ends immediately, awarding the win.

Ante Bet

• Players can increase the bet multiplier to 40x per line, increasing the chance to hit BONUS symbols.

Game Rules

• High volatility: Games pay less often, but the chance to hit big wins is higher.
• Only the highest win is paid per combination.
• Free spins and bonus wins add to the payline.
• Wins are multiplied by the base bet.
• All values are expressed in coins.
• The RTP value is shown in-game.
• Malfunction voids all pays and plays.

How to Play

• Use the plus or minus buttons to change the bet value.
• The SETTINGS menu contains settings affecting gameplay.
• The Information page opens via the (i) button.
• CREDIT and BET labels show current balance and bet.
• Click labels to switch coin or cash views.
• The circular arrow starts the game.

Settings Menu

• Options for toggling sound, music, and game history.
• Scroll between information pages using arrow buttons.
• BET MENU shows bet multipliers.
• Maximum win limited to 5,000x bet.

Book of Monsters Demo Mode & Free Play Overview

Many players look for a Book of Monsters free play or Book of Monsters demo mode to get a feel for the slot before staking money. Although this website does not host playable demos or free versions of the game, this guide is here to provide a clear breakdown of what you can expect.

On this page, you’ll find an outline of the gameplay style, core mechanics, and standout features that make Book of Monsters unique. We cover the essentials such as special symbols, bonus triggers, and any distinctive elements that shape how the slot unfolds.

By reviewing this information, you can gain an accurate sense of the slot’s style and flow without needing direct access to a demo. Think of it as a preview that highlights how Book of Monsters works, giving you the knowledge you need before trying it out for real-money play.

*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.