Stonelions has been catching plenty of attention, so we put it through its paces to see how it really holds up. BT Gaming are the studio behind it, tuning the slot game for a very high-variance maths model, with an RTP of 96.33%. Originally released in 2025, it has aged well. You get a 5-reel grid running 20 paylines, all finished with a clean, modern look. Top wins are capped at 5,000x your stake, a healthy ceiling worth chasing. Here's how it stacks up.
Written by Alex Crawford · Last updated: February 2026
This slot game, Stonelions, is the work of BT Gaming, wrapped in polished, characterful visuals. It runs on 5 reels and 20 paylines with very high variance, and a return-to-player rate of 96.33%.
Where Stonelions earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. With very high variance, this one is aimed at players who can ride out the swings for the top wins. On balance, Stonelions is a dependable option worth a few spins in the demo first.
The RTP of 96.33% 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.
Stonelions 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
Stonelions by BT Gaming is a solid offering that delivers good entertainment value. The 96.33% RTP combined with very high volatility creates a well-balanced gaming experience.