Our review of Empire of the Sun Stones cuts through the marketing and looks at what matters: how it plays and how it pays. Developed by Genii, Empire of the Sun Stones arrives with a high-variance maths model and an RTP of 95.57%. It's built around an ancient theme and plays out on a 5-reel grid running 40 paylines. The maximum win sits at 29,250x, so there's serious upside on the table. Originally released in 2025, it has aged well. So does it deliver? Let's get into it.
Written by Alex Crawford · Last updated: March 2026
At its core, Empire of the Sun Stones is a release produced by Genii, built around an ancient theme and powered by 40 paylines across 5 reels. The result is high volatility paired with 95.57% RTP.
Where Empire of the Sun Stones earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. With high variance, this one is aimed at players who can ride out the swings for the top wins. Overall it's a well-rounded release that knows what it is.
At 95.57%, 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.
High volatility means longer gaps between wins, but when wins do land, they can be significantly larger. A bigger bankroll and patience are recommended for this type of slot.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Empire of the Sun Stones 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
Empire of the Sun Stones by Genii is a solid offering that delivers good entertainment value. The 95.57% RTP combined with high volatility creates a well-balanced gaming experience.