Book of Monsters puts a spooky-fun twist on the classic “Book of” slot format. Instead of ancient pharaohs or hidden tombs, you’re stepping into a cartoonish monster world filled with creepy-yet-cute creatures, glowing books, and magical surprises. The slot runs on a simple 5×3 layout with 10 paylines and sticks close to the formula fans know and love.
Land three or more Book symbols—acting as both wild and scatter—to trigger the Free Spins feature. Before the round kicks off, one symbol is chosen at random to become the expanding special symbol. This symbol can stretch to fill full reels, even if it’s not in adjacent positions, which is where the big wins start to roll in.
The game has an RTP of 96.08% and runs with high volatility, so don’t expect frequent hits, but when they land, they can hit hard. The maximum win is 5,000x your spin amount, which is pretty standard for a slot in this genre.
Visually, Book of Monsters ditches the usual serious tone and goes for something more playful and spooky-light. It’s like Halloween meets a fantasy storybook, and it works well—especially if you want something different from the usual “Book of” visuals.
