


In Jazz is a medium-volatility online slot from Endorphina with an RTP of 96.00%.
Page updated July 2026
IN JAZZ is Endorphina's tribute to 1930s Chicago nightlife, dropping players into a smoky underground jazz club filled with music and atmosphere. It's played on a 5-reel, 3-row grid with 25 fixed paylines, where matching symbols across an active line form the win.
The presentation is warm and intimate rather than flashy — dim lighting, a room full of captivated listeners, and a genuinely soulful soundtrack that leans into the golden age of jazz. The reels are populated by musical card symbols alongside jazz instruments and three standout character symbols: a saxophonist, a contrabass player and an elegant singer who commands the stage. A Treble Clef Wild substitutes for every regular symbol except the Scatter, while the IN JAZZ logo itself acts as the Scatter, with three or more landing anywhere on the reels triggering the Free Games feature.
IN JAZZ carries a 96% RTP, right around the healthy end of what you'll typically find across the wider slot market, giving it solid long-run value alongside its atmospheric presentation.
Rated medium volatility, IN JAZZ keeps the base game reasonably steady while saving its biggest swings for the bonus round. Three or more Scatters award 10 Free Games, during which the three musician symbols act as multiplier jokers — the saxophonist worth x1, the contrabass player x2, and the singer x3 — applied to any winning combination they're part of. The feature can also retrigger if three more Scatters land during the bonus itself, and a Bonus Pop option lets you buy direct entry into the Free Games round if you'd rather skip straight to the multipliers.
A specific max win multiplier isn't listed for IN JAZZ, so it's worth checking the in-game paytable for the exact ceiling before you dive in. Betting is flexible, running from 0.25 up to 200 per spin, covering everything from cautious to high-roller stakes.
IN JAZZ succeeds on atmosphere as much as mechanics, and the musician-multiplier Free Games feature gives the bonus round genuine teeth. If a smoky, character-driven jazz theme sounds like your kind of session, try the free demo at johnessyslots before deciding whether to play with real stakes.
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In Jazz has an RTP (return to player) of 96.00%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by Endorphina — individual sessions can land far above or below it.
In Jazz is rated medium volatility. Medium-volatility slots sit between the extremes — a balance of win frequency and win size.
In Jazz is developed by Endorphina and was released in Apr 28, 2017.
In Jazz plays on a 5×3 grid with 25 paylines.
Verified Data via Johnessy AI