Jammin' Jars

By Becky M. | Updated 17 July 2026

Jammin’ Jars is what happens when someone scribbles a pun on a whiteboard and builds a slot around it. Released in September 2018 by Push Gaming, this fruit-themed cluster pays game runs on an 8×8 grid and leans hard into a Candy Crush-meets-disco aesthetic. The name came first, the slot came second, and honestly, it shows in the best and worst ways. The theme won’t surprise anyone, but the mechanics underneath are what built its reputation.

We’ve spent plenty of time on this one over the years, and it keeps pulling us back. A 96.83% RTP on a high-volatility cluster pays game is genuinely competitive, and the walking wild multiplier system gives the bonus round a sense of escalation that most slots from this era simply didn’t have. Whether that translates into your session or leaves you staring at a barren grid for forty spins straight is, of course, the eternal question with anything this volatile.

Quick Facts

Technical Features

Jammin’ Jars runs on an 8-reel, 8-row grid with 64 symbol positions. No traditional paylines. Wins form when five or more matching symbols connect horizontally or vertically in a cluster. The default RTP is 96.83%, though lower configurations (95.25% and 94.21%) do exist at certain casinos, so check the info panel before you start. Volatility is high – expect longer dry patches with sharper spikes when things connect.

Bets run from £0.20 up to £100 per spin. The max win caps at 20,000x stake (19,998.5x if you want to be exact). Hit frequency is around 45%, which is relatively generous for a high-volatility game and keeps the base game ticking over even when big clusters aren’t forming. It plays well across desktop, mobile and tablet.

Design and Theme

Visually, Jammin’ Jars goes for neon-bright fruit on a dark grid, like someone threw a bag of Haribo at a disco ball. Strawberries, apples, blueberries, plums and oranges fill the reels in vivid colour, and the overall mood is upbeat without being obnoxious. A funky dance soundtrack runs underneath, leaning into the “jammin'” side of the title. It’s not subtle, but it fits.

Push Gaming didn’t do anything new with the theme. Fruit slots are as old as the industry, and dressing them in neon doesn’t change that. What it does do is keep the grid readable. On an 8×8 layout, visual clarity matters, and the bold colour palette makes it easy to spot clusters forming. The jam jar wilds stand out clearly against the fruit symbols, which is exactly what you need when cascades start chaining.

Symbols and Paytable

The symbol set is straightforward fruit: apples, blueberries, plums, oranges and strawberries make up the regular pays, with strawberries at the top. Land a cluster of 25 or more strawberries and you’re looking at 100x stake in the base game alone. The lower-value fruits fill out the grid and keep smaller clusters ticking over during cascades.

The jam jar is the star. It acts as the wild, substituting for all fruit symbols, and it’s also how you trigger free spins. Three or more jars on a single spin opens the bonus round. During cascades, the jar walks one position on the grid after each win, carrying its multiplier with it.

Bonus Features

Three mechanics drive the action, and they’re built to feed into each other.

Cascading Reels: Every winning cluster disappears and new symbols tumble down to fill the gaps. This chain reaction can produce multiple wins from a single spin and is the engine that powers everything else. If you’ve played any match-three puzzle game, the rhythm feels immediately familiar.

Wild Jars with Walking Multipliers: Each jam jar wild starts at 1x. Every time it contributes to a winning cluster and the cascade continues, that multiplier ticks up. The jar then shifts one position on the grid. In a good run, a single jar can rack up serious multiplier value as it walks across the board, and when multiple jars are active at once, their multipliers combine. This is where the 20,000x ceiling lives.

Free Spins: Land three or more jam jars in one spin and you trigger 6 free games. Any multipliers already on those jars carry over into the bonus and can only go up. During free spins, after non-winning spins, a rainbow feature can drop a colossal fruit symbol onto the grid, with adjacent matching symbols absorbed into the cluster. It’s a rescue mechanic that keeps the bonus alive when the cascades stall.

A Bonus Buy option exists internationally at 84x the base bet, but UK players won’t see it. UKGC regulations prohibit purchasing bonus rounds directly, so you’ll need to trigger it the old-fashioned way.

How to Play

Where to Play

Jammin’ Jars is one of Push Gaming’s most widely distributed titles and you’ll find it at the vast majority of UK-licensed online casinos. For more Push Gaming slots, take a look at our Push Gaming hub page. If you’re hunting for a good welcome offer to play it with, our casino reviews cover the current deals worth considering.

FAQ

Becky M.

Founder & Editor-in-Chief at Slotfruit

Rebecca (Becky) Mosley has been at the heart of the UK online gambling industry since 2008 – making her one of the most experienced voices in the space. She founded Take Marketing Limited and built SlotFruit.co.uk into one of the longest-running independent casino comparison sites in the country.

As editor-in-chief, Becky brings a genuine player-first perspective to everything on the site. She personally oversees every casino review and slot guide, making sure readers get straight-talking, honest information rather than marketing fluff. Her approach has always been the same: transparency, fair bonus terms, and responsible gambling above all else.

Over 17 years in the industry, Becky has built deep expertise across UK Gambling Commission licensing, slot game mechanics, bonus structures, and the constantly evolving regulatory landscape. She works directly with operators and software providers to keep every listing accurate and up to date.

Becky is a Companies House registered director (Take Marketing Limited, company no. 07619813) and is based in Lincolnshire, England.

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