Welcome to our deep dive on Joker Stoker — the demo, the maths, and whether it earns a spot in your rotation. This is a Endorphina title, sitting firmly in the a very high volatility profile bracket and paying back a published RTP of 96.04%. You get 10 paylines across 5 reels, all built around a fruit and joker theme. The maximum win sits at 80,000x, so there's serious upside on the table. The full verdict is below.
Written by James Holloway · Last updated: January 2026
Joker Stoker is a game from Endorphina. Presentation-wise it's wrapped in a fruit and joker theme, and it leans toward a very high volatility profile at an RTP of 96.04%. Under the hood you'll find a 5-reel grid running 10 paylines.
The mechanics are what make Joker Stoker interesting. 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 Endorphina catalogue.
The RTP of 96.04% 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.
Joker Stoker 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
Joker Stoker by Endorphina is a solid offering that delivers good entertainment value. The 96.04% RTP combined with very high volatility creates a well-balanced gaming experience.