Our review of Book of 4 Horsemen cuts through the marketing and looks at what matters: how it plays and how it pays. Developed by Spinomenal, Book of 4 Horsemen arrives with a medium low-variance maths model and a published RTP of 95.95%. The maximum win sits at 5,000x, so there's serious upside on the table. Dating back to 2024, it remains a regular pick. Visually it's wrapped in a horror theme, with the action running on 30 paylines across 5 reels. Here's how it stacks up.
Written by Michael Torres · Last updated: January 2026
Book of 4 Horsemen comes to us from Spinomenal, wrapped in a horror theme. It runs on a 5-reel grid running 30 paylines with medium low variance, and an RTP of 95.95%.
The mechanics are what make Book of 4 Horsemen interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. Thanks to its medium low variance, wins come often enough to suit casual, lower-risk play. Overall it's a well-rounded game that knows what it is.
At 95.95%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
Medium-low volatility offers a good balance of regular wins with occasional larger payouts. Expect frequent hits with modest amounts, suitable for casual players who want low-risk entertainment.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Book of 4 Horsemen 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.
3.0 / 5 — Good
Book of 4 Horsemen by Spinomenal is a solid offering that delivers good entertainment value. The 95.95% RTP combined with medium low volatility creates a well-balanced gaming experience.