Curious what Devil's Heart actually feels like to play? Here's our full, no-fluff take. This is a Octavian Gaming slot game, sitting firmly in the high volatility bracket and paying back a published RTP of 95.2%. Top wins are capped at 5,000x your stake, a healthy ceiling worth chasing. It first went live in 2022 and still earns its place today. Visually it's wrapped in a valentine's day and love & romance theme, with the action running on 5 reels and 30 paylines. So does it deliver? Let's get into it.
Written by James Holloway · Last updated: January 2026
Devil's Heart comes to us from Octavian Gaming. Presentation-wise it's dressed up with a valentine's day and love & romance theme, and it leans toward high variance at a published RTP of 95.2%. Under the hood you'll find a 5-reel grid running 30 paylines.
Dig into the bonuses and Devil's Heart starts to stand out. Look out for scatter symbols that unlock free spins and extra bonus rounds. With high variance, this one is aimed at players who can ride out the swings for the top wins. Overall it's a well-rounded release that knows what it is.
At 95.2%, 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.
High volatility means longer gaps between wins, but when wins do land, they can be significantly larger. A bigger bankroll and patience are recommended for this type of slot.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Devil's Heart 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
Devil's Heart by Octavian Gaming is a solid offering that delivers good entertainment value. The 95.2% RTP combined with high volatility creates a well-balanced gaming experience.