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Jammin’ Jars is Push Gaming’s 2018 cluster-pays slot on an 8×8 grid: cascading fruit, wandering jam jar wilds with growing multipliers and 6 free games where the jars stick. 96.83% RTP (a 94.25% version exists), high volatility, 20,000x max win. UnionSlots rating: 8.5/10. There is no demo on this page; UKGC-licensed casinos offer demo mode after registration and age verification (18+).
Where to Play Jammin’ Jars at UK-Licensed Casinos
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UnionSlots rating: 8.5/10. Jammin’ Jars is the rare slot that is both easy to read and seriously volatile. Wandering jam jars, each with its own multiplier that climbs with every cascade, give it a 20,000x ceiling and some of the most memorable free games in the genre. It rewards patience and a bankroll that can sit through long dry runs; if you want steady small wins, look elsewhere. Years on, it’s still the Push Gaming game to try first.
Pros
20,000x max win with a mechanic you can see building
96.83% default RTP, well above the UK average
Rainbow feature and cascades keep base-game spins interesting
Cons
High volatility: the free games are rare and bonuses can fail completely
Only 6 free spins per trigger, with no retrigger
No bonus buy in the UK
Jammin’ Jars Slot Facts
Provider
Push Gaming
Release date
September 2018
RTP
96.83% (a 94.25% version also exists)
Volatility
High
Max win
19,998.5x stake (usually quoted as 20,000x)
Grid
8 × 8
Wins
Cluster pays, 5 or more matching symbols touching horizontally or vertically
Bets
£0.20 to £100 (UKGC limit: £5 per spin, £2 if you are 18–24)
Jammin’ Jars is Push Gaming’s 2018 cluster-pays slot on an 8×8 grid of fruit: strawberries, oranges, raspberries, plums, green apples and blueberries. There are no paylines. A win is five or more matching symbols touching horizontally or vertically, and the bigger the cluster the more it pays: 25 or more strawberries is worth 100x your stake on its own. Winning symbols are removed and new ones cascade in, so one spin can chain several wins.
Jam Jars, Multipliers and Cascades
The jam jar is the game’s wild and scatter in one. Each jar carries a multiplier that starts at 1x. Whenever a jar is part of a cluster win, its multiplier increases by one, the jar hops to an adjacent position and the grid cascades again. If two jars sit in the same cluster their multipliers are added together before being applied. Long cascade chains with a jar in the middle are the moments the game is built around.
Rainbow Feature
After a spin with no win, the Rainbow feature can trigger at random. A rainbow arcs across the grid and drops in one or more giant fruit symbols, each covering a block of positions. If a giant fruit completes a cluster, it bursts into regular symbols and the win is paid, often with a jar multiplier attached. It’s the base game’s safety valve and it does not occur during the free games.
Free Games
Three or more jam jars anywhere on the grid award 6 free spins. The triggering jars stay on the grid for the whole feature, keep whatever multiplier they’ve already built and only ever go up; any jar that lands during the free games sticks too. With several sticky jars hopping around an 8×8 grid and multipliers compounding, this is where the 20,000x maximum lives. There is no retrigger, and most bonuses pay well under 100x: the feature is rare and swingy by design.
Jammin’ Jars Paytable
For the top cluster tier (25 or more symbols) as multiples of your total stake: strawberry 100x, orange 62.5x, raspberry 37.5x, plum and green apple 25x, blueberry 10x. The minimum five-symbol cluster pays from 0.1x (blueberry) to 1x (strawberry). All of these can be multiplied by any jars involved.
The default RTP is 96.83%; a 94.25% version exists, so the in-game information page is the one to trust. Push Gaming rates the volatility high, and it plays that way: many spins return nothing, the free games arrive rarely, and a session can turn on a single cascade chain. Treat it as a game for a set budget rather than a long grind.
Playing Jammin’ Jars in the UK and on Mobile
Jammin’ Jars runs in the browser on iOS and Android, in portrait mode on phones. At UKGC-licensed casinos the stake is capped at £5 per spin (£2 if you are 18–24), autoplay and turbo are switched off and the bonus buy is removed. Demo mode is available at most UKGC sites once you’ve registered and verified your age. For more cascading cluster games, see Reactoonz, Fruit Party and Push Gaming’s Razor Shark.
Slots should stay a paid-for form of entertainment. Set a budget before you play, and if gambling stops being fun, these UK services offer free, confidential help:
GamStop: free self-exclusion from all UKGC-licensed gambling sites.
GamCare: National Gambling Helpline, 0808 8020 133, open 24/7.
Molly Linwood
Content Specialist
I’m Molly Linwood, a Content Specialist at UnionSlots, where I’m dedicated to delivering the best online slot reviews and comprehensive industry insights for UK players. With a deep understanding of the latest trends in online gambling, I craft engaging, SEO-optimized content that helps UK players navigate the world of online slots. By staying up to date with the newest releases and slot mechanics, I ensure every piece of content adheres to UKGC and ASA guidelines. My work is driven by a passion for delivering valuable information about the best online slots in the UK, while keeping players informed about responsible gaming practices.
FAQ
What is the RTP of Jammin' Jars?
96.83% by default. Push Gaming also supplies a 94.25% build, and casinos can use it; the in-game paytable shows which one you’re playing.
What is the max win on Jammin' Jars?
19,998.5x your stake, the highest win Push Gaming has recorded, usually rounded to 20,000x.
How do the jam jar multipliers work?
Every jam jar is a wild with a multiplier that starts at 1x and goes up by 1 each time the jar is part of a win. After a win the jar moves to a neighbouring space and the symbols cascade; multipliers of jars in the same cluster are added together.
How do you trigger the free games?
Land 3 or more jam jars on one spin. You get 6 free spins in which the jars stay on the grid and keep their multipliers for the whole feature.
What is the Rainbow feature?
A random event after a non-winning spin that drops one or more giant fruit symbols onto the grid, which can burst into instant clusters. It doesn’t appear in free games.
Can I play Jammin' Jars for free in the UK?
Not on this page; UKGC casinos can offer demo mode after registration and age verification (18+).
Is there a bonus buy in the UK?
No. The bonus buy, autoplay and turbo mode are not available at UKGC-licensed casinos.
