Welcome to our deep dive on Book Of Clovers — the demo, the maths, and whether it earns a spot in your rotation. Developed by Spinomenal, Book Of Clovers arrives with a very high-variance maths model and a return-to-player rate of 96.14%. Visually it's leaning into a book of aesthetic, with the action running on 5 reels and 20 paylines. Top wins are capped at 500,000x your stake, a genuinely massive ceiling for the patient. It first went live in 2015 and still earns its place today. So does it deliver? Let's get into it.
Written by James Holloway · Last updated: March 2026
This release, Book Of Clovers, is the work of Spinomenal. Presentation-wise it's leaning into a book of aesthetic, and it leans toward very high volatility at a return-to-player rate of 96.14%. Under the hood you'll find 20 paylines across 5 reels.
Dig into the bonuses and Book Of Clovers starts to stand out. Look out for scatter symbols that unlock free spins and extra bonus rounds. With very high variance, this one is aimed at players who can ride out the swings for the top wins. All told, it's a solid entry in the Spinomenal catalogue.
The RTP of 96.14% is right around the industry average of ~96%. This represents a fair return that's in line with what most modern slots offer.
Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Book Of Clovers features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.1 / 5 — Good
Book Of Clovers by Spinomenal is a solid offering that delivers good entertainment value. The 96.14% RTP combined with very high volatility creates a well-balanced gaming experience.