Our review of Jewel Mastermind cuts through the marketing and looks at what matters: how it plays and how it pays. This is a Advantplay title, sitting firmly in the a medium volatility profile bracket and paying back 97.03% RTP. It's finished with a clean, modern look and plays out on 20 paylines across 5 reels. If everything lines up, Jewel Mastermind can pay up to 5,000x your bet. Dating back to 2023, it remains a regular pick. Here's how it stacks up.
Written by James Holloway · Last updated: January 2026
This release, Jewel Mastermind, is the work of Advantplay. Presentation-wise it's finished with a clean, modern look, and it leans toward a medium-variance maths model at a return-to-player rate of 97.03%. Under the hood you'll find 20 paylines across 5 reels.
The mechanics are what make Jewel Mastermind interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. Its medium variance balances steady wins with the odd larger payout. All told, it's a solid entry in the Advantplay catalogue.
At 97.03%, this slot offers an excellent return to player rate, well above the industry average of ~96%. This makes it one of the more generous slots available in terms of long-term payout potential.
A balanced volatility profile with a mix of smaller frequent wins and occasional larger bonus payouts. Suitable for players who want steady action without extreme swings.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Jewel Mastermind 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
Jewel Mastermind by Advantplay is a solid offering that delivers good entertainment value. The 97.03% RTP combined with medium volatility creates a well-balanced gaming experience.