Our review of Diamond Boost cuts through the marketing and looks at what matters: how it plays and how it pays. This is a AGS release, sitting firmly in the a medium high-variance maths model bracket and paying back 94% RTP. It's built around a retro theme and plays out on a 3-reel grid running 5 paylines. It first went live in 2024 and still earns its place today. Top wins are capped at 5,000x your stake, a healthy ceiling worth chasing. Let's break down what works and what doesn't.
Written by James Holloway · Last updated: March 2026
At its core, Diamond Boost is a slot produced by AGS, wrapped in a retro theme and powered by a 3-reel grid running 5 paylines. The result is a medium high-variance maths model paired with 94% RTP.
The mechanics are what make Diamond Boost interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. Its medium high variance balances steady wins with the odd larger payout. All told, it's a serviceable entry in the AGS catalogue.
The RTP of 94% 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.
Diamond Boost 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.
2.5 / 5 — Average
Diamond Boost by AGS provides a straightforward slot experience. While it may not break new ground, it offers medium high volatility gameplay that will appeal to certain player preferences.