Slots Like Jammin Jars and Other Disco-Grid Cluster Slots Worth Playing
Jammin Jars is a Push Gaming cluster-pays slot whose whole identity is the Jam Jar wild, a symbol that refuses to leave the grid, shuffling one space at a time while its multiplier climbs by 1x on every cascade it touches. Played on an 8×8 disco dancefloor with a 96.83% RTP, very high volatility and a 20,000x stake max win, it is one of the most-streamed slots ever made, available to play free or for real money at UK casinos.
Released in 2018, Jammin Jars took the then-novel cluster-pays format and gave it a personality: neon fruit, a thumping 70s soundtrack and those bouncing jars that turned a single lucky spin into a chain reaction. It became a Twitch and YouTube staple precisely because of how its big wins build, slowly, then all at once. Push Gaming liked it enough to build an official sequel, Jammin Jars 2, around the idea in June 2021, and we cover exactly what that sequel changes further down this page. If you want to understand why slots like Jammin Jars dominate the grid-slot shelf, this is the one that set the template. It is not a gentle game, and this review is honest about that.
Recommended Casinos
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Because the bouncing-wild-plus-cascades blueprint has been copied so widely, anyone hunting for slots like Jammin Jars has plenty to choose from, from Push Gaming’s own sequels and later hits such as Razor Shark to high-volatility cluster titles by other studios, Play’n GO’s Reactoonz and Pragmatic Play’s Sweet Bonanza being the two most players try next. We compare the closest alternatives further down, so you can match the feature set and risk level you actually enjoy rather than chasing the name alone.
Pros and Cons
Reviewed by Brian TaylorPublished: October 2018 · Updated: July 2026
What four years of community play has taught us about where this slot delights and where it punishes.
| Pros | Cons |
|---|---|
| The 96.83% default RTP is genuinely high for a slot this volatile, most games swinging this hard return less, so you are not paying a premium for the chaos. | Very high volatility with a vicious dead-spin problem: long runs where the grid simply will not connect five of anything are part of the deal, and they test your bankroll. |
| The Jam Jar wild staying on the grid and sliding one cell per cascade means a single jar can survive five or six tumbles, stacking its multiplier the whole way, that slow build is the slot’s signature thrill. | As our readers’ own reviews below say, a high share of free-spins rounds end as flat 5x to 20x bonuses. The feature is hard to trigger and often disappointing when it lands. |
| Land two or more jars in the same cascade and their multipliers add together before they hit the win, this is how the 20,000x results are built, and watching it happen live is the reason people stream it. | The headline 20,000x is extraordinarily rare. Realistic big sessions top out far lower, and most players will never see four figures. |
| The Rainbow Feature dropping a giant 2×2 fruit symbol into a near-miss board can turn a dead spin into a huge cluster without warning, the best unscripted moments come from it. | Almost all the win potential is locked behind the jars and the Rainbow Feature; the plain fruit clusters pay little, so quiet spells feel genuinely empty. |
| Built portrait-first for mobile, so the 8×8 grid and the bouncing-jar animation actually work one-handed on a phone rather than being a shrunk-down desktop port. | Push later added an 84x bonus buy, but it runs at a lower 96.49% RTP, paying up front quietly costs you return, and it is not offered at UK-licensed casinos in any case. |
How the Game Works
Forget reels and paylines, Jammin Jars is an 8×8 grid running cluster pays. Symbols drop in from the top, and you win when five or more matching fruits touch each other horizontally or vertically (diagonals do not count). Every winning cluster pays, then those symbols are removed and new ones tumble down to fill the gaps, so one spin can chain into a run of cascades. The grid is set in front of a spinning mirror ball, and the action plays out on a dancefloor, it is a fruit-and-disco theme, not the “music” label some listings give it.
Because more symbols are on screen than a standard slot, clusters form more readily, but the low-value fruit pays are small. The real money is in keeping the cascade chain alive long enough for a jar to get involved. That is the loop slots like Jammin Jars are built on: tumble, connect, repeat, and pray a jar lands.
Symbols and Paytable
Six fruits make up the pay symbols: blueberries, plums, apples, oranges, raspberries and strawberries. The strawberry is the premium, paying around 100x for a cluster of 25 or more, though clusters that large only realistically happen mid-cascade. There are no card royals here; the only non-fruit symbol is the Jam Jar, which is both the wild and the scatter. That dual role is central: the same symbol you need for the bonus is also the one carrying every multiplier.
The Jam Jar Wilds and Multipliers
This is the mechanic everything else orbits. A Jam Jar substitutes for any fruit, and crucially it does not vanish when it helps make a win, instead it stays on the grid and shifts one space horizontally or vertically on the next cascade. Each cascade it contributes to bumps its personal multiplier up by 1x: a jar that survives four tumbling wins is sitting on a 5x. Land more than one jar at once and their multipliers combine on the same win, which is exactly how a modest cluster suddenly pays hundreds of times your stake. Watching two high-multiplier jars collide is the single most exciting thing this slot does.
Free Games and the Rainbow Feature
Land three or more Jam Jars in a single cascade and you trigger the Free Games round, starting with 6 free spins and the triggering jars carried over. The key difference from the base game: during free spins the jar multipliers only ever increase, they never reset between spins, so a good round compounds, and landing more jars extends it. It is a feast-or-famine feature, and the community knows it: plenty of rounds fizzle at 5x to 20x, but the rare one that keeps the jars alive is where the slot earns its reputation. Separately, the Rainbow Feature can fire at random in the base game, dropping one or more giant fruit symbols onto the grid to force a cluster, it is the slot’s way of rescuing an otherwise dead spin, and it can do so spectacularly. Push Gaming’s own game page puts it more cheerfully, promising “massive fruits to the dance floor, which can burst into juicy wins”, and for once the marketing copy is accurate.
Jammin Jars 2 and the Giga Jar: What the Official Sequel Changes
Push Gaming confirmed the sequel for June 2021 in its own launch announcement, and Jammin Jars 2 is the single most useful comparison point for this game, because it keeps the 8×8 grid, the fruit clusters and the wandering multiplier jars, then bolts a collection mechanic on top. Officially the sequel runs at a 96.40% RTP (with a reduced 94.40% configuration also published, and the usual warning that RTPs may vary per casino), is rated High volatility, and its recorded top win stands at 50,000x, two and a half times the original’s ceiling.
The headline addition is the Giga Jar. Wins are collected on a Gold Vinyl meter, and filling it to MAX gives you the chance to trigger the Giga Jar feature, where a giant jar lands as a 2×2, or as a paying 3×3 or 4×4 Instant Prize Block worth up to 1,000x, and 8 Giga Spins are awarded with the wild jar multipliers adding to every cluster they touch. The original’s Rainbow Feature returns as Fruit Blast: an equaliser sweeps the reels and the Giga Jar DJ fires out one to three shots of giant fruit that burst and form a cluster. Free spins still work the classic way, 3 or more Wild Jars award 6 free spins.
Our take: the sequel is the better pick if you are chasing ceiling, the original if you want the purer, more readable version of the jar mechanic. Players who enjoy this collect-and-trigger structure should also look at Push Gaming’s later grid hit Big Bamboo, which develops the same ideas in a different theme.
Our Verdict
Jammin Jars deserves its status. The moving-jar multiplier is one of the genuinely original ideas in modern slots, the 96.83% RTP is honest for the volatility on offer, and the moment two loaded jars meet is hard to beat anywhere. But it is a demanding game that will happily empty a balance through dead spins before it gives anything back, and the free-spins round disappoints more often than it delivers, be clear-eyed about that. It is for experienced, bankroll-aware players who actively enjoy high variance and the slow-build payoff, not for anyone after steady entertainment. If you want slots like Jammin Jars, try the sequel Jammin Jars 2 for a higher ceiling, Push Gaming’s own Fat Santa, or Pragmatic’s Fruit Party for the same fruity cluster rhythm at gentler variance.
SlotsLike rating: 8/10
Player Reviews
Editor’s note (July 2026): the comments below are archived player opinions originally posted on third-party forums (AskGamblers and LCB), reproduced here as a snapshot of community sentiment. They are not SlotsLike reviews and we cannot verify the individual wins described. Two factual corrections from us before you read them: the free spins round actually starts with 6 free spins whenever 3 or more Jam Jars land in a single cascade, not three spins as one commenter recalls; and there is no “Jar Ore” feature in this game, that commenter appears to have mixed Jammin Jars up with a different slot, the real mechanics are the multiplier Jam Jar wilds and the Rainbow Feature. Their recurring complaint about flat 5x to 20x bonus rounds, though, matches our own testing exactly and is reflected in our cons table above.
Slots With a Similar Feel
Jammin Jars is a colourful cluster-pays slot built by Push Gaming on an 8×8 grid, there are no paylines. It runs a high 96.83% RTP with very high volatility, so wins are big but infrequent. You form combinations by landing clusters of five or more matching fruits that touch each other, the giant fruit Rainbow Feature can drop in at random, and the Jam Jar wilds carry multipliers that climb on every cascade. The maximum win is 20,000x your stake. Among the slots like Jammin Jars listed below, these are the closest matches by feel and format.
Chicago the Musical is a low volatility game from High 5 Games with 5 reels, 3 rows, and 40 paylines. The game has an RTP of 95.03% and a music theme. Other features include free spins and improving symbols. Old King Cole is medium-low volatility and RTP game by Microgaming that plays with 5 reels, 3 rows, and 20 paylines. It features a music theme, free spins, and increasing multipliers. Poprocks is a Yggdrasil Gaming creation that plays on 5 reels, 3 rows, and 486-33614 paylines. The game comes with medium-low volatility and a high RTP of 96.80%. Its music themes and also feature free spins, cascading wins, and increasing multipliers. Once Upon a Rhyme is a medium-low volatility game from Blueprint with an RTP of 96.36%. The slot plays on 5 reels, 3 rows, and 20 paylines.
Jammin Jars has several slots that are closely matched based on theme, bonus features, RTP and developer, they are Chicago The Musical, Old King Cole, Poprocks and Once Upon A Rhyme.
Similar Slots Worth a Spin
Jammin Jars has a music theme. The game’s design is bold and bright, and its background is a mirror ball. Players will hear a 70s style disco soundtrack playing. The slot’s 8×8 grid is on top of a dancefloor, and six types of fruity symbols can be seen. The symbols include plums, blueberries, apples, oranges, raspberries, and strawberries. The strawberry is the highest-paying symbol. Despite the disco mirror-ball backdrop, Jammin Jars is at heart a fruit slot dressed in a 70s nightclub theme rather than a true music game.
Our favourite Music slots
Jammin Jars is a Music themed slot game. Similar Music themed slots include Jazz Of New Orleans, Ambiance, Madness House Of Fun and Autumn Queen.
More Push Gaming Slots to Explore
Here are the best similar Push Gaming slots to enjoy today, these slots are all created by the same developer as Jammin Jars, they are The Shadow Order, Bonus Beans, Fat Santa, Blaze Of Ra, Tricky Treats and Wild Swarm Triple Hive.
Push Gaming is an independent British studio founded in 2010, originally building social and mobile games before moving into real-money slots. It is privately owned (not part of a larger group) and holds licences in regulated markets including the UK Gambling Commission and the Malta Gaming Authority. Jammin Jars is its breakout hit and remains its signature title, alongside Fat Santa, Razor Shark and the 2021 sequel Jammin Jars 2. The studio is known for distinctive maths models and mobile-first design rather than churning out high volumes of games.
If you enjoy the upbeat, fast-tumbling feel of Jammin Jars, these other Push Gaming titles share the studio’s design sensibility and are worth a look.
Where to Play
Tsars
Tsars is an online casino that carries Push Gaming titles including Jammin Jars, with a large multi-provider slots library and standard card and e-wallet banking. Availability and licensing vary by country, so check that it is licensed for your region before depositing. 18+.
Platin Casino
Platin Casino stocks a broad slots catalogue including Jammin Jars and supports mainstream payment methods such as Visa, Mastercard and common e-wallets. As always, confirm the site holds a valid licence for your jurisdiction and review its withdrawal terms first. 18+.
Vulkan Vegas
Vulkan Vegas carries Jammin Jars and runs tiered welcome promotions with their own wagering requirements. Bonus terms change often, so read the current conditions and the wagering multiplier before opting in, and check the casino is licensed for your region. 18+.
Virgin Games
Virgin Games is a UK-facing casino running on the Gamesys platform (now part of the Bally’s group) and is licensed by the UK Gambling Commission, so UK players get full regulatory protection and GAMSTOP coverage. It is one of the more reputable places to find Jammin Jars. 18+. Please gamble responsibly.
Hard Rock Social Casino
Hard Rock Social Casino is a free-to-play social casino, not a real-money site, you play Jammin Jars with virtual coins rather than cash, so there are no real winnings or withdrawals. It is a no-risk way to try the game, but treat it as entertainment only. 18+.
Jammin Jars, Key Stats
The verified specifications for the Jammin Jars slot.
| Jammin Jars, Key Stats | |
|---|---|
| Name: | Jammin Jars |
| Provider: | Push Gaming (independent studio) |
| Developer Rank: | 2 out of 22 Push Gaming games |
| RTP: | 96.83% default; Push Gaming’s own game sheet also lists a reduced 94.25% configuration and warns that RTPs may vary per casino, so check the paytable before playing |
| RTP Category: | High |
| RTP Rank: | 342 out of all games |
| Feature Description: | Rainbow Feature, Free Game, Multiplier |
| Feature Categories: | Free Spins, Increasing Multipliers |
| Reels: | 8 |
| Rows: | 8 |
| Paylines: | Cluster pays (no paylines), 5+ matching symbols |
| Volatility: | Very High on our banding (Push Gaming officially rates it High) |
| Volatility Rank: | 37 out of all games |
| Min Bet: | £0.20 (varies by operator) |
| Max Bet: | £100 (varies by operator) |
| Max Win: | 20,000x stake (officially 19,998.5x) |
| Released: | September 2018 |
| Slotslike Rank: | 104 out of 4,200+ games View Top 100 |
Jammin Jars slot information last reviewed: July 2026
Game Screenshot
Games With the Same Features
Jammin Jars has similar slots with the bonus features: Free Spins and Increasing Multipliers.
Slot games with Free Spins
Other matching slots with Free Spins are Macau Racing, Wild Orient, Respin Circus and All Aboard.
Slots with Increasing Multipliers
Other matching slots with Increasing Multipliers are Hound Hotel, Cashanova, Boomberries, 4 Foxx Crew and Ashoka.
Sources & Verification
Facts on this page were checked in July 2026 against Push Gaming’s own official game pages for Jammin’ Jars and Jammin’ Jars 2, which confirm the RTP configurations, volatility ratings, max win figures and feature mechanics described above, along with Push Gaming’s official June 2021 launch announcement for the sequel. We also checked the UK Gambling Commission’s Licence Conditions and Codes of Practice, Social Responsibility Code 5.1.1, which sets the current UK bonus and wagering rules referenced in this review.
Frequently Asked Questions
What is the RTP?
The default Jammin Jars RTP is 96.83%, which is high for a slot this volatile. Push Gaming’s official game page also lists a reduced 94.25% configuration that some operators use, notes that RTPs may vary per casino, and the bonus-buy version runs at 96.49%. Check the paytable at your casino to confirm which build you are playing.
How do you trigger the free spins?
Land three or more Jam Jars within a single cascade. You start with 6 free spins, the triggering jars carry over, and during the round the jar multipliers only increase, they never reset between spins, so a good run compounds.
What is the maximum win?
The win is capped at 20,000x your stake (precisely 19,998.5x). It is reached by keeping multiple high-multiplier Jam Jars alive across a long cascade chain, usually inside the free spins. It is extraordinarily rare, most big sessions land far below it.
Why is this slot so volatile?
Almost all the win potential sits behind the Jam Jar multipliers and the Rainbow Feature, while the plain fruit clusters pay little. That means long dead-spin stretches between the moments that matter. It is a feast-or-famine game by design, budget for the quiet runs.
What is the Rainbow Feature?
It is a random base-game feature that drops one or more giant (2×2) fruit symbols onto the grid, often creating a cluster from a board that was about to pay nothing. It is the slot’s main way of turning a dead spin into a big one outside the bonus.
Should I use the bonus buy?
You can buy direct entry to the free spins for 84x your stake where it is offered, but that version runs at a lower 96.49% RTP, so it quietly costs you return over time. Buying also does not fix the feature’s variance, you can still land a flat round. UK players will not see the option at all: feature buys are not available at UKGC-licensed casinos. Bonus details re-checked against the UKGC 2026 bonus rules (Social Responsibility Code 5.1.1, which since 19 January 2026 also caps wagering requirements on UK bonuses at 10x) in July 2026.
Can I play it for free?
Yes. The Jammin Jars demo on this page lets you play with practice credits to get used to the cascade and jar mechanic before staking real money. Demo winnings cannot be withdrawn.
What are the best slots like Jammin Jars?
The closest is its sequel, Jammin Jars 2, which adds the Giga Jar and a far higher 50,000x cap. Beyond that, Push Gaming’s Fat Santa shares the studio’s flair, and Pragmatic Play’s Fruit Party offers the same fruity cluster-pays rhythm with slightly gentler variance.
Who made this slot and is it fair?
Jammin Jars was built by Push Gaming, an independent studio licensed in several regulated markets including the UK Gambling Commission and the Malta Gaming Authority. Its RTP is independently tested, and you can verify the figure in the game’s own paytable.