Our review of Gronk's Gems cuts through the marketing and looks at what matters: how it plays and how it pays. Hacksaw Gaming are the team behind it, tuning the slot game for a medium high-variance maths model, with an RTP of 93.77%. Top wins are capped at 5,000x your stake, a healthy ceiling worth chasing. You get 5 reels and 40 paylines, all themed around gem. Dating back to 2022, it remains a regular pick. Let's break down what works and what doesn't.
Written by Sophie Williams · Last updated: March 2026
Gronk's Gems is a title from Hacksaw Gaming, leaning into a gem aesthetic and powered by 40 paylines across 5 reels. The result is a medium high-variance maths model paired with 93.77% RTP.
Where Gronk's Gems earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. The medium high volatility strikes a middle ground that should suit most playing styles. Overall it's a well-rounded title that knows what it is.
The RTP of 93.77% is below the industry average of ~96%. This is common for older slots or those with special features. The lower RTP may be offset by unique mechanics or higher maximum win potential.
Medium-high volatility means wins come less frequently but tend to be larger when they hit. Players should be prepared for dry spells between bigger wins, requiring a moderate bankroll.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Gronk's Gems 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
Gronk's Gems by Hacksaw Gaming is a solid offering that delivers good entertainment value. The 93.77% RTP combined with medium high volatility creates a well-balanced gaming experience.