Push Gaming · Slot

Jammin' Jars — Everything We Know About It

Jammin' Jars is eight years old and still one of the most recognisable slots ever made. An 8x8 grid, cluster pays, and a jam jar wild whose multiplier grows every time it wins and, during free spins, never resets. Six spins does not sound like much until you understand that the multipliers carry through all of them.

Jammin' Jars slot by Push Gaming in the Oxibet Canada lobby, 96.83% return on the top build
Jammin' Jars sits in our casino lobby alongside 3,000-odd other titles. The artwork here is ours; the game belongs to Push Gaming.

Jammin' Jars — the numbers

What follows is the studio's own published data on its top certified build, checked against independent game databases. Where two sources contradict each other we say which and why rather than quietly picking the friendlier figure.

Jammin' Jars — the numbers, on the studio's top certified build
DetailFigure
GameJammin' Jars
StudioPush Gaming
Launched2018
Return rate (top build)96.83%
Other certified builds95.25% and 94.25% builds are widely deployed; a 90.45% build is also reported
SwingHigh
Top win19,998.5x
Reel layout8x8
Ways to winCluster pays — 5 or more matching symbols connected horizontally or vertically
Lowest stakeC$0.20
Highest stakeC$100
ThemeA neon 1980s dancefloor stacked with fruit
Try it freeYes, in demo mode once you are signed in
MobileRuns in iOS and Android browsers
CurrencyCanadian dollars

Slot studios certify the same game at several different return rates and each operator licenses one of them. The figure above is the top certified build. Open the info panel inside the game itself and read the return rate printed there — that is the one governing your spins, and on some of these titles the gap is large.

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What it is like to actually play

The thing that makes Jammin' Jars memorable is watching a jar climb. It ticks up one at a time, visibly, and because it holds its value through blank spins during the bonus you spend the round willing another cluster into the jar's neighbourhood. That is a genuinely engaging feedback loop and very few slots reproduce it. Two practical notes from us. Six spins go quickly, so the rounds that matter are the ones where a jar gets going early. And the RTP situation on this title is messier than most — see the note below, because it is worth thirty seconds of your attention before you play.

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How the game works

Sixty-four grid positions, and wins form as clusters of five or more matching symbols touching horizontally or vertically. Winners cascade away and are replaced. The jam jar is the symbol that matters: it is wild, it is the scatter, and every time it participates in a win its personal multiplier increases by one.

Three jars award six free spins. In the base game the jar multipliers reset between spins; in free spins they do not. They stay sticky, they keep climbing, and they hold their value across losing spins too. Two or three jars sitting on high multipliers late in a round is where the ceiling becomes theoretically reachable.

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The parts that matter

Jam jar wild

Acts as both wild and scatter, and its multiplier rises by one every single time it takes part in a winning cluster.

Cascading reels

Winners are destroyed and replaced from above, so one spin can chain several wins while the jar multiplier climbs.

Rainbow feature

Triggers at random after a non-winning cascade in the base game, dropping one or more giant 3x3 fruit symbols onto the grid.

Free games

Three or more jars award six free spins during which the jars are sticky and their multipliers never reset — not even on losing spins.

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Return rate, swing, and what they mean for an evening

Six free spins with persistent multipliers is a very different proposition from six free spins without them, and that single design decision is why this game has outlasted almost everything released alongside it. The base game is quieter. As with most of the cluster games on this page, the value is concentrated in the bonus.

Where the published numbers disagree. This game has one of the most fragmented RTP pictures we have come across. Push Gaming's own page names two builds, 96.83% and 94.25%. Independent databases variously report 96.83%, 95.25% and 90.45%, and at least one lists 95.25% as the default — which matches what is widely deployed in practice. So four figures circulate and no two sources agree on the full set. Read the in-game info panel. On the maximum win: Push Gaming's own page states 19,998.5x, which is the precise certified cap, while essentially all marketing rounds it to 20,000x. We have published the provider's exact figure.

Two terms that get thrown around loosely, so here is what we mean by them. Return rate is the share of everything ever staked that a game gives back across millions of spins. It says nothing whatsoever about your next fifty. Swing — volatility, if you prefer — is how that return arrives: small and steady, or rare and enormous. Swing is the number that decides whether an evening feels pleasant or brutal. Our games run on number generators built by the studios and certified by outside test houses; nobody at our end can lean on a spin, and neither can you.

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Playing Jammin' Jars with us

Getting from nothing to your first spin takes about five minutes. Here is the whole thing:

  1. Set up the account

    Pick Canadian dollars when you register. It is locked in permanently afterwards, and getting it wrong costs you a conversion fee on every transaction for as long as the account exists — our registration walkthrough covers the form field by field.

  2. Look at the welcome offer before you deposit

    Ours runs at 400% up to C$1,500 with 240 free spins, and you have to tick the opt-in at the cashier before that first deposit settles. The wagering terms are laid out on our bonuses page — read them, because 25 to 35 times is a real number.

  3. Fund it

    Interac e-Transfer clears in minutes and costs nothing from our side, from C$10 up. Cards and six cryptocurrencies work too.

  4. Put your limits in place first

    Deposit, loss and session caps live in your account settings. It is ten seconds of work and we would rather you did it now than wished you had later.

  5. Find it, and try demo first

    Search the lobby by name or filter to Push Gaming. Demo mode runs on play credits so you can learn the mechanics before real money is involved.

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If you like this one

These three are the nearest things we have to Jammin' Jars. The full set of ten is on our popular slots page.

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Questions we get about Jammin' Jars

What is the RTP of Jammin' Jars?

Push Gaming publish 96.83% and 94.25%. Independent sources also report 95.25% and 90.45%, and 95.25% appears to be very widely deployed. There is no single answer for this title — check the game's own info panel.

Why do jar multipliers matter so much in free spins?

Because they are sticky and never reset for the whole round, including across losing spins. In the base game they clear between spins. That difference is the entire game.

What is the maximum win?

19,998.5x your stake, which is Push Gaming's own certified figure. You will see 20,000x quoted almost everywhere; that is the rounded marketing number.

How many free spins do you get?

Six, from three or more jars. It sounds short, and it is — the persistent multipliers are what make it worthwhile.

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Give it a go

Jammin' Jars is in the lobby now, with 3,000-odd others for company. Put your deposit limits in while you are in the cashier — ten seconds, and the single most sensible thing you will do this evening.

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