If you're trying to work out whether Book of Champions is worth your time, this hands-on review breaks it down. Built by Spinomenal, it lands as a release with a very high volatility profile and a published RTP of 96.14%. Top wins are capped at 500,000x your stake, a genuinely massive ceiling for the patient. Visually it's wrapped in a book of theme, with the action running on a 5-reel grid running 10 paylines. Originally released in 2015, it has aged well. The full verdict is below.
Written by Michael Torres · Last updated: January 2026
Book of Champions comes to us from Spinomenal, themed around book of. It runs on 10 paylines across 5 reels with very high volatility, and a return-to-player rate of 96.14%.
Dig into the bonuses and Book of Champions 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. On balance, Book of Champions is a dependable option worth a few spins in the demo first.
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 Champions 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 Champions 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.