Jammin’ Jars is Push Gaming’s 2018 cluster pays slot on an 8×8 grid with no paylines: five or more touching fruit pay, and Jam Jar wilds carry a multiplier that rises by one with each win before hopping to a new spot. Three Jars start six free games where multipliers never reset. Jammin’ Jars returns 96.83% with a 20,000x cap. The free demo below is a similar cluster pokie.
Jammin’ Jars runs on an 8×8 grid and pays in clusters rather than lines: five or more identical symbols connected horizontally or vertically form a win, diagonals do not count, and winning symbols are removed so the rest drop and new ones fall in until no fresh cluster forms. Stakes run from 20 cents to $100 a spin at most casinos, lower at some. The default return to player is 96.83%, the bonus buy mode returns 96.49%, and Push Gaming also supplies a 95.25% setting, with 94.24% and 90.45% builds also reported, so the in-game paytable shows which applies. Volatility is high. No hit frequency is published; most spins form a small cluster, but the smallest pays return less than the stake. The most the game can pay on one spin is 20,000 times the total bet, which is $2,000,000 at the $100 maximum.
Jammin' Jars Pokies Characteristics
Six fruit symbols share the grid with one special symbol, the Jam Jar. It substitutes for any fruit and doubles as the scatter: three or more anywhere start the free games. It has no payout of its own; each Jar carries a multiplier that starts at 1x and gains one every time it joins a winning cluster, and after each win it walks to a random adjacent empty position before the next cascade. Several Jars in one cluster multiply together before the pay is calculated: a 10x Jar, an 8x Jar and a 6x Jar in one win make 480x. In the base game, Jars and whatever they have built leave the grid as soon as a spin ends with no win. There is no gamble feature and no jackpot of any kind; the bonus buy, added in October 2021, is covered below.
Wins below are multiples of the total bet for clusters of five, ten to eleven, 15 to 19 and 25 or more symbols; the full table has ten tiers.
The Jam Jar pays nothing by itself; its value is the multiplier. The top line, 25 or more strawberries at 100x the total bet, is $10,000 at a $100 stake before any multiplier, and it is the figure some sites quote as a base game cap. It is not one: a single 8x Jar in that cluster makes it 800x.
The Rainbow is the base game’s random event. After any spin or cascade that ends without a win, a rainbow can sweep the grid and drop one or more giant fruit symbols onto it. Every position covered becomes that fruit, matching fruit already touching it join the cluster, and a win is all but guaranteed. Sources differ on the size: most say 3×3, one says 2×2, 3×3 or larger. Its frequency is not published, it cannot be forced, and it is switched off during the free games.
Three or more Jam Jars in one base game spin, cascades included, award six free games. The triggering Jars stay on the grid for the whole feature and keep the multipliers they had built, every new Jar also becomes sticky, and the multipliers only go one way: they never reset on a losing spin and no cap is stated. The Jars still hop after each win, so over six spins several can end up in the same cluster and multiply together.
Extra spins are not awarded. Detailed rules sources say there is no retrigger, one aggregator lists retriggering, and in practice additional Jars add sticky multipliers rather than spins. The average round returns about 82 times the bet, and reviewers put the trigger at roughly one in 150 to 200 spins, not an official figure.
Push Gaming added a Buy Feature in October 2021. It costs 84 times the total bet and starts the six free games at once with three Jam Jars placed at random. The return in this mode is 96.49% at the standard setting, a shade below normal play, and since the average round pays back about 82x against the 84x price, buying is slightly worse value than waiting. It is absent from United Kingdom builds, where feature buys are banned, and from some casino versions elsewhere.
At 96.83% the game keeps a little over 3 cents of every dollar bet, on the generous side for an online pokie. At 95.25% it keeps almost 5 cents and at 90.45% nearly 10, so the paytable check matters more here than usual. High volatility here means most spins end with a cluster worth less than the stake, so the balance drains steadily and the session is decided by whether a Jar chain or the free games arrive before the money runs out.
At 20 cents a spin, $20 buys 100 spins, fewer than the estimated gap between free games triggers, so expect mostly base game and the occasional Rainbow; at $1 a spin the same $20 lasts 20 spins. The bonus buy costs $84 at $1 a spin and $16.80 at 20 cents, for a round that averages about 82x back.
Jammin’ Jars 2 arrived on 2 June 2021 with the same 8×8 cluster grid and multiplier Wild Jars and new machinery: a Gold Vinyl meter with five levels that alter features and return, Instant Prize symbols paying 1x to 1,000x, Fruit Blast in place of the Rainbow, and a Giga Jar bonus of eight Giga Spins. The cap rises from 20,000x to 50,000x, and each Jar’s multiplier is capped at 43x where the original has no stated limit. The base return is 96.40%, the five levels range from 96.10% to 96.60%, and reduced settings of 95.35% and 94.4% are also published. Sources disagree on the sequel’s top fruit pay, so check the in-game table.
Push Gaming has since taken the disco theme into Retro Tapes (November 2022), Giga Jar (March 2023) and Retro Sweets (May 2024). A lobby listing plain Jammin’ Jars means the 2018 game described here.
Jammin’ Jars is a 1970s disco take on the fruit machine. Glossy fruit sits on a dark neon dancefloor under a disco-ball logo, and the Jam Jars are rainbow-coloured and dance. The soundtrack is a funky, disco-inflected electronic loop that does not let up, and win sounds scale with the prize. Built in HTML5 at about 8 MB and designed for phones first, it has a portrait mode that suits the square grid and runs on iOS, Android, tablets and desktop. The pace is all or nothing, frequent sub-stake clusters broken by rare multiplier chains.
Jammin’ Jars has only ever existed online: Push Gaming makes no cabinets, so there is nothing in Australian clubs or casinos, and its licences cover the United Kingdom, Malta, Alderney and several other markets, none of them Australia. The game reaches offshore casinos that accept Australians through aggregators, and a third-party scan found it at 47 of 161 Australian-facing casinos: widely carried, far from universal. Availability varies and the lobby search is the way to check, as is the return setting in the paytable. Push Gaming publishes no standalone free demo of its own; free versions sit embedded on third-party review sites and run without registration.
Jammin’ Jars is a high-volatility pokie that earns its reputation. The walking, multiplying Jars still feel different, the free games can turn into something very large, and the 20,000x cap is real rather than decorative. The cost is a base game that pays below the stake far more often than above it and a feature that arrives rarely, so it is not for short sessions on a small bankroll or for anyone who likes steady returns. The one thing to check is the return setting: 96.83% is a fair price for this much variance, and anything lower is not.
96.83% by default. Casinos can run 95.25%, 94.24% or 90.45% versions, the bonus buy mode returns 96.49%, and the in-game paytable shows which applies.
Land three or more Jam Jar wilds anywhere on the 8×8 grid in one base game spin. You get six free games with every Jar sticky and multipliers that only increase.
20,000 times the total bet, 19,998.5x precisely, which is $2,000,000 at the $100 maximum stake.
Their multipliers multiply together before the cluster is paid: a 10x Jar, an 8x Jar and a 6x Jar in one win make 480x.
Only online, at offshore casinos that accept Australian players; Push Gaming has no Australian licence and makes no land-based machines. Carriage varies by casino, so use the lobby search.
The 2021 sequel keeps the grid and the Wild Jars, adds Instant Prize symbols up to 1,000x, a Gold Vinyl meter and the Giga Jar bonus, and lifts the cap to 50,000x at a 96.40% base return.
