Our review of Dark Hearts cuts through the marketing and looks at what matters: how it plays and how it pays. Developed by Rival, Dark Hearts arrives with very high variance and a return-to-player rate of 96.17%. Top wins are capped at 75,000x your stake, a genuinely massive ceiling for the patient. It's given an engaging visual treatment and plays out on a 5-reel grid running 40 paylines. So does it deliver? Let's get into it.
Written by Alex Crawford · Last updated: January 2026
Dark Hearts is a game from Rival. Presentation-wise it's finished with a clean, modern look, and it leans toward a very high-variance maths model at a return-to-player rate of 96.17%. Under the hood you'll find 5 reels and 40 paylines.
The mechanics are what make Dark Hearts interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. The very high volatility means patience is rewarded — expect quiet spells broken by bigger hits. On balance, Dark Hearts is a dependable option worth a few spins in the demo first.
The RTP of 96.17% is right around the industry average of ~96%. This represents a fair return that's in line with what most modern slots offer.
Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Dark Hearts 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
Dark Hearts by Rival is a solid offering that delivers good entertainment value. The 96.17% RTP combined with very high volatility creates a well-balanced gaming experience.