Thinking about giving Book of Inferno a spin? We tested it thoroughly so you know what to expect. Quickspin are the software studio behind it, tuning the game for medium high variance, with an RTP of 95.55%. Dating back to 2023, it remains a regular pick. You get 25 paylines across 5 reels, all leaning into a halloween and horror aesthetic. The maximum win sits at 5,000x, so there's serious upside on the table. Here's how it stacks up.
Written by Emma Roberts · Last updated: February 2026
This slot, Book of Inferno, is the work of Quickspin, leaning into a halloween and horror aesthetic. It runs on 25 paylines across 5 reels with medium high variance, and 95.55% RTP.
The mechanics are what make Book of Inferno interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. Its medium high variance balances steady wins with the odd larger payout. All told, it's a solid entry in the Quickspin catalogue.
At 95.55%, 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-high volatility means wins come less frequently but tend to be larger when they hit. Players should be prepared for dry spells between bigger wins, requiring a moderate bankroll.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Book of Inferno 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 Inferno by Quickspin is a solid offering that delivers good entertainment value. The 95.55% RTP combined with medium high volatility creates a well-balanced gaming experience.