If you're trying to work out whether King of Slots is worth your time, this hands-on review breaks it down. This is a NetEnt release, sitting firmly in the a very high-variance maths model bracket and paying back a published RTP of 95.71%. If everything lines up, King of Slots can pay up to 750,000x your bet. It's wrapped in polished, characterful visuals and plays out on 20 paylines across 5 reels. Expect a hit frequency around 30%, which sets the rhythm of play. Here's how it stacks up.
Written by Sophie Williams · Last updated: January 2026
At its core, King of Slots is a title produced by NetEnt. Presentation-wise it's finished with a clean, modern look, and it leans toward a very high-variance maths model at a published RTP of 95.71%. Under the hood you'll find a 5-reel grid running 20 paylines.
The mechanics are what make King of Slots interesting. 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, King of Slots is a dependable option worth a few spins in the demo first.
At 95.71%, 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.
King of Slots 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
King of Slots by NetEnt is a solid offering that delivers good entertainment value. The 95.71% RTP combined with very high volatility creates a well-balanced gaming experience.