Thinking about giving Kupala a spin? We tested it thoroughly so you know what to expect. Spinomenal are the provider behind it, tuning the release for a very high-variance maths model, with a published RTP of 95.95%. If everything lines up, Kupala can pay up to 500,000x your bet. You get 5 reels and 30 paylines, all given an engaging visual treatment. The full verdict is below.
Written by Alex Crawford · Last updated: March 2026
This release, Kupala, is the work of Spinomenal. Presentation-wise it's given an engaging visual treatment, and it leans toward a very high volatility profile at 95.95% RTP. Under the hood you'll find 30 paylines across 5 reels.
Dig into the bonuses and Kupala starts to stand out. 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. All told, it's a solid entry in the Spinomenal catalogue.
At 95.95%, 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.
Kupala 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
Kupala by Spinomenal is a solid offering that delivers good entertainment value. The 95.95% RTP combined with very high volatility creates a well-balanced gaming experience.