Curious what Diamond Charge Extra actually feels like to play? Here's our full, no-fluff take. This is a Iron Dog Studio slot, sitting firmly in the medium high volatility bracket and paying back 95.42% RTP. Dating back to 2026, it remains a regular pick. If everything lines up, Diamond Charge Extra can pay up to 5,000x your bet. It's built around a diamond theme and plays out on 5 reels and 30 paylines. So does it deliver? Let's get into it.
Written by Michael Torres · Last updated: March 2026
At its core, Diamond Charge Extra is a release produced by Iron Dog Studio, wrapped in a diamond theme. It runs on 30 paylines across 5 reels with a medium high-variance maths model, and a published RTP of 95.42%.
Dig into the bonuses and Diamond Charge Extra starts to stand out. 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. On balance, Diamond Charge Extra is a dependable option worth a few spins in the demo first.
At 95.42%, 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.
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 Charge Extra 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
Diamond Charge Extra by Iron Dog Studio is a solid offering that delivers good entertainment value. The 95.42% RTP combined with medium high volatility creates a well-balanced gaming experience.