Play money only · 18+
Demo powered by SlotsReach. Demos use virtual credits; nothing won here is real money.
Book of Monsters comes from Pragmatic Play (released 2025) and leans into fantasy world-building with a darker edge than most. The demo on this page runs on play money, so you can learn every corner of it without spending a cent.
This page gives you the facts we have on file — RTP, volatility, grid, features — and our honest read on who will enjoy it. It is part of Taboobet Bonus Guide, an independent guide that is not the official Taboobet site.
Book of Monsters at a glance
- Provider
- Pragmatic Play
- RTP
- 96.5%
- Volatility
- Very high
- Max win
- 5,000× stake
- Grid
- 7 × 7
- Hit frequency
- 23.2%
- Release date
- Pay type
- Cluster pays
- Features
- Free Spins, Wild, Scatter, Cluster Pays, Ante Bet, Buy Bonus, Gamble, Symbol Collection, Progressive Free Spins
Reels, grid and rules
The engine is a 7x7 grid and wins counted as cluster pays. On top of that sit free spins, wild and scatter. That is 49 visible positions in total — a crowded grid where a lot happens at once. Clusters reward connected groups, so your eye follows shapes on the grid rather than lines. The rules screen inside the game explains every symbol and feature trigger; reading it in demo mode costs nothing.
The bonus mechanics
Book of Monsters lists 9 feature tags in our data. Here is what the main ones mean in practice:
- Free Spins. A free-spins round is triggered in-game (usually by scatters) and plays a set number of spins without deducting your stake.
- Wild. Wilds stand in for regular symbols to help complete wins.
- Scatter. Scatters are position-free: what matters is how many land, not where.
- Ante Bet. The optional ante bet costs more per spin and, in return, nudges the bonus trigger rate upward.
What the maths says about Book of Monsters
On paper Book of Monsters returns 96.5% of stakes over time, right around the usual 96% benchmark; the remaining 3.50% is the house edge baked into the maths. Casinos can run different RTP versions of the same slot, so check the info panel wherever you play for real. Volatility is very high: expect long droughts and rare, outsized hits — the most extreme risk profile. Book of Monsters caps wins at 5,000× your bet. It sets the tone for what the game is chasing, but it is a rare outcome. Hit frequency is listed at 23.2%, so roughly that share of spins return something — often less than the stake.
Is Book of Monsters for you?
The risk profile points toward seasoned players who accept that most sessions end below where they started. It is also an obvious pick if fantasy and magic themes are your thing — the presentation is a big part of the appeal. Feature-hunters will notice the bonus buy; just remember it is usually off-limits while wagering a welcome bonus. If any of that sounds wrong for you, the demo will tell you in ten minutes — that is exactly what it is for.
Playing it with the welcome bonus
Call it a guilty pleasure: Book of Monsters sits on our after-dark shelf because it looks the part. What the reels do is down to chance, every single spin. If you want to take it further, Taboobet’s welcome package currently reads 400% + 400 Free Spins (400% + 400 free spins from a $35 minimum deposit, plus 9 fs no deposit for new users). Free spins are credited on the slots Taboobet names in the offer, which may or may not include Book of Monsters; bonus funds usually can be played on most slots, subject to the wagering, max-bet and excluded-games rules.
Search for Book of Monsters in the Taboobet lobby before depositing — game availability differs by region — and read our free spins guide first.
Bottom line
If you like your slots with fantasy world-building with a darker edge than most, Book of Monsters is worth a free session. Set a budget before you ever play it for real, and walk away when the budget is spent — win or lose.
Book of Monsters — FAQ
Is the Book of Monsters demo free?
It is completely free here: the demo uses play money, needs no sign-up and has no real-money wins or losses.
What is the RTP of Book of Monsters?
Book of Monsters has a published RTP of 96.5%. It is a long-run theoretical figure; individual sessions vary widely, and casinos may run a different RTP version, so check the game’s info panel.
How volatile is Book of Monsters?
Book of Monsters is rated very high volatility, meaning long droughts and rare, outsized hits — the most extreme risk profile. The maximum win is 5,000× the stake.
Do Taboobet welcome free spins work on Book of Monsters?
That depends on the offer. Welcome spins are tied to the slot Taboobet names at the time, which may or may not be Book of Monsters. Bonus funds are usually more flexible, within the wagering and excluded-games rules.
