If you're trying to work out whether Book of Secrets is worth your time, this hands-on review breaks it down. Developed by SYNOT Games, Book of Secrets arrives with a low-variance maths model and a return-to-player rate of 96%. Originally released in 2016, it has aged well. If everything lines up, Book of Secrets can pay up to 1,000x your bet. It's themed around book of and egyptian and plays out on a 5-reel grid running 25 paylines. Let's break down what works and what doesn't.
Written by Emma Roberts · Last updated: January 2026
Book of Secrets is a title from SYNOT Games, dressed up with a book of and egyptian theme. It runs on a 5-reel grid running 25 paylines with a low-variance maths model, and an RTP of 96%.
Where Book of Secrets earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. The low volatility makes it forgiving on the bankroll, ideal for relaxed, longer sessions. Overall it's a well-rounded title that knows what it is.
The RTP of 96% is right around the industry average of ~96%. This represents a fair return that's in line with what most modern slots offer.
Low volatility means frequent small wins with less risk. This slot is ideal for players who prefer steady, consistent payouts and longer play sessions without dramatic bankroll swings.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Book of Secrets 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 Secrets by SYNOT Games is a solid offering that delivers good entertainment value. The 96% RTP combined with low volatility creates a well-balanced gaming experience.