If you're trying to work out whether In Jazz is worth your time, this hands-on review breaks it down. Endorphina are the provider behind it, tuning the slot for high variance, with 96.04% RTP. If everything lines up, In Jazz can pay up to 100,000x your bet. Originally released in 2018, it has aged well. You get a 5-reel grid running 30 paylines, all given an engaging visual treatment. So does it deliver? Let's get into it.
Written by Emma Roberts · Last updated: March 2026
At its core, In Jazz is a slot produced by Endorphina, given an engaging visual treatment. It runs on 5 reels and 30 paylines with a high volatility profile, and an RTP of 96.04%.
The mechanics are what make In Jazz interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. With high variance, this one is aimed at players who can ride out the swings for the top wins. Overall it's a well-rounded slot that knows what it is.
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.
High volatility means longer gaps between wins, but when wins do land, they can be significantly larger. A bigger bankroll and patience are recommended for this type of slot.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
In Jazz 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
In Jazz by Endorphina is a solid offering that delivers good entertainment value. The 96.04% RTP combined with high volatility creates a well-balanced gaming experience.