Jammin' Jars Demo & review

In Jammin' Jars the multiplier lives on the wild: every Jam Jar that helps a cluster win gains a step on its own multiplier, then hops to an empty square before the next cascade. Push Gaming released this 8x8 original in September 2018, and Jammin' Jars 2 followed in 2021. It suits players who like to follow a few wilds as they grow over a round, and buyers, since the free games can be bought.

Jammin' Jars before our first spin, at the demo's opening 0.40 bet: six fruits on an 8x8 dance floor and no jar in sight. FluxPlays demo test, 28 October 2026.

How Jammin' Jars works

Wins come from clusters of five or more matching fruits touching horizontally or vertically, and one symbol can count in more than one cluster. Winning fruit is removed, everything above falls, and new symbols cascade in until nothing new connects.

The strawberry tops the paytable and the blueberry sits at the bottom, with each fruit paying in ten bands from 5 symbols up to 25 or more. Pays climb steeply with size: a cluster of 25 or more strawberries pays 100 times what five of them do. That steepness is the key to the game, because the jars are what turn a big cluster into a big win.

Jam Jars: what stays on the grid

The Jam Jar is the only special symbol, and it does three jobs. It is a wild for every fruit. It carries a multiplier that starts unboosted and rises by one step each time the jar helps a win, applied to every win it joins. And it moves: after helping a cluster, the jar steps to a neighbouring empty square before the collapse, then holds its place while the fruit around it falls.

That last rule is why the jars matter. A jar does not leave with the cluster it helped, so on a long cascade chain it can join a second and a third win, gaining a step each time. The rules we captured do not say how two jars in the same cluster combine, so this page makes no claim about it.

The Rainbow Feature

After any collapse that does not win, the Rainbow Feature can trigger at random and drop one or more Giant Fruits onto the grid. Each one turns every square it covers into its fruit, which can build a large cluster in one move. It is the base game's other route to a big hit, beside a jar riding a long cascade chain.

Free spins: how they trigger

Three or more Jam Jars anywhere start the Free Games Feature with 6 free games. Jars stay on the grid for the whole round and keep their multipliers, so a jar's value carries from one free game into the next. By the rules, a jar that helps two clusters in the first free game starts the second already at x3, and it can only climb from there.

Free game 3 of 6 in our bought round: three jars at x2, x4 and x5 held their squares while the grid refilled around them. FluxPlays demo test, 28 October 2026.

Can you buy the bonus?

Yes. The Bonus Buy sells the Free Games Feature outright after a confirmation, at the price in the table above, and by the rules it returns a touch less in theory than normal play. It is the only paid option in the game.

The Bonus Buy panel at a 1.00 base bet: 84.00 for the free games, at the buy's own stated RTP. FluxPlays demo test, 28 October 2026.

RTP, volatility and max win

Push also lists a 94.25% version of the game, and the casino picks which one it runs, so the game's information panel is where to confirm it. Push rates the volatility High. The rules cap any one round at 19,998.45x the bet, a figure usually rounded to 20,000x elsewhere.

Our Jammin' Jars demo test

The bought round showed both what the sticky jars do and what they need. The trigger spin landed three jars, two of them already at x2. Through six free games the jars held their squares and kept climbing, with x6 the highest we saw. What they never met was a large cluster of top fruit, so the round paid $23.00 against its price.

The base game paid on about a quarter of spins, almost all of it small cascades, and no three-jar trigger came. Its best was a four-step cascade chain on spin 22. No Giant Fruits fell for us, so the Rainbow Feature is described from the rules. A hundred spins and one bought round are too few to say anything about the game's return.

End of the bought free games: 20.45 from the six games, which with the trigger spin made $23.00 for the round. FluxPlays demo test, 28 October 2026.

The settled board after the buy: WIN 23.00 for the whole round, with the x6 jar still where the last free game left it. FluxPlays demo test, 28 October 2026.

Is Jammin' Jars worth playing?

For a player who follows multipliers, yes, and the free games are the reason: six games in which every jar keeps its value and its square. The base game is quicker to read than to enjoy, with frequent cascades that mostly pay small. For us, a wild that hops to the next square after each win is still one of the neater ideas in cluster slots.

Pick Sugar Rush if you want multipliers fixed to squares on the grid, doubling up to x128 and kept all round in its free spins. Stay with Jammin' Jars when the multiplier should travel with the wild and a short bonus suits you.

In the demo, follow one jar through a long cascade chain in the base game. How many steps it gains before the chain ends is the whole game in miniature.