If you're trying to work out whether Mystery of Sun is worth your time, this hands-on review breaks it down. Built by PlayBro, it lands as a slot with low volatility and a published RTP of 95.1%. It's themed around egyptian and mystery and plays out on a 5-reel grid running 40 paylines. If everything lines up, Mystery of Sun can pay up to 5,000x your bet. Dating back to 2022, it remains a regular pick. Let's break down what works and what doesn't.
Written by Daniel Chen · Last updated: March 2026
Mystery of Sun comes to us from PlayBro. Presentation-wise it's leaning into an egyptian and mystery aesthetic, and it leans toward low volatility at a return-to-player rate of 95.1%. Under the hood you'll find 5 reels and 40 paylines.
The mechanics are what make Mystery of Sun interesting. 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 game that knows what it is.
At 95.1%, 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.
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.
Mystery of Sun 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
Mystery of Sun by PlayBro is a solid offering that delivers good entertainment value. The 95.1% RTP combined with low volatility creates a well-balanced gaming experience.