Our review of Game of Castles cuts through the marketing and looks at what matters: how it plays and how it pays. Developed by Adell, Game of Castles arrives with a very high volatility profile and 95% RTP. Top wins are capped at 5,000x your stake, a healthy ceiling worth chasing. It first went live in 2021 and still earns its place today. It's built with crisp artwork and atmosphere and plays out on 15 paylines across 5 reels. The full verdict is below.
Written by James Holloway · Last updated: January 2026
Game of Castles comes to us from Adell. Presentation-wise it's built with crisp artwork and atmosphere, and it leans toward a very high-variance maths model at an RTP of 95%. Under the hood you'll find 15 paylines across 5 reels.
Where Game of Castles earns its keep is the feature set. 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. Overall it's a well-rounded release that knows what it is.
At 95%, 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.
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.
Game of Castles 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
Game of Castles by Adell is a solid offering that delivers good entertainment value. The 95% RTP combined with very high volatility creates a well-balanced gaming experience.