Can I play Jammin' Jars for free?

Yes. The demo at the top of this page uses play money — no sign-up needed — and the jars, cascades and free games work as in the real game.

How do clusters work?

There are no paylines. Five or more matching fruit touching horizontally or vertically form a cluster and pay. Bigger clusters pay more, up to 25 or more.

What does a Jam Jar do?

It's a Wild that joins any adjacent cluster. Each time it's part of a win its multiplier goes up by 1, and it moves to a new spot before the next cascade.

How do I get the free games?

Land three or more Jam Jars on one spin to get six free games. The jars stay on the grid all round and their multipliers never reset.

What is the Rainbow feature?

On a spin with no win, a rainbow can appear at random and add giant fruit symbols that join clusters with the fruit around them.

What are the RTP, volatility and max win?

The RTP is 96.83%, volatility is high and the top win is about 20,000 times the bet.

Free demo · by

Jammin'Jars

An 8×8 disco floor of glossy fruit and rainbow jam jars that dance from spot to spot. Clusters of five pay, winners pop, new fruit drops — and every time a jar joins in, its multiplier climbs.

96.83%RTP

8×8Grid

20,000×Max win

5+Cluster

Play with Bonus Jammin' Jars · free demo, play money

Four dance moves

Jammin' Jars has four rules worth seeing. Each scene is a playable 8×8 mini-grid — press its button and watch one at work.

01Cluster pays

Clusters, not lines

There are no lines. Five or more matching fruit touching up, down, left or right form a cluster — the bigger the cluster, the bigger the pay.

Press the button to see it.

02Cascade

Pop and drop

Every winning cluster pops. The fruit above slides down, new fruit falls in from the top, and if a new cluster forms it pays again — all on the same spin.

Press the button to see it.

03Jam Jar

The dancing jar

Jam Jars are Wilds that join any cluster next to them. Each win adds +1 to the jar's multiplier, and then it hops to a fresh spot before the next drop.

Press the button to see it.

04Rainbow

Rainbow to the rescue

On a spin with no win, the Rainbow feature can strike at random and drop giant fruit onto the grid — big blocks that link up with the fruit around them.

Press the button to see it.

Spin the jam

A playable 8×8 grid with the real fruit values. Five or more touching fruit make a cluster and Jam Jars join any of them — spin and see which clusters paid.

Spins0Last win0×Total won0×

This spin pays

0×the total bet

Press Spin to play.

Paytable · × total bet

Values in × total bet; cluster sizes between 5 and 25+ are smoothed from the official end points. A toy — no bets, no payouts.

Spin the bonus wheel

The wheel decides how many free games you play and how big the multiplier on every win is. Spin it, then play the round on the grid beside it.

Tap the centre to spin the wheel

Free spins—

Multiplier—

Spins left0Wins0Total0×

Spin the wheel first

Tap the centre of the wheel to see what you win.

A toy: in the real game three Jam Jars start 6 free games with sticky, growing jars. No bets, no payouts.

By the numbers

96.83%

Return to player

The standard setting. Lower versions exist at some casinos — the in-game paytable shows which one runs.

Max win20,000×

Your bet (19,998.5× to be exact) — a free-games story with big jars.

VolatilityHigh

Grid8 × 8

Clusters of 5+

Released2018

By Push Gaming

Jar multiplier+1

Every win it joins

Free games6

From 3+ Jam Jars; jars stay and keep growing for the whole round

Under the disco lights

Jammin' Jars — the grid — **The grid**Eight by eight glossy fruit on a disco floor, with a Jam Jar waiting for a cluster.

Jammin' Jars — full board — **Full board**A whole board of fruit — clusters can snake around corners in any direction.

Jammin' Jars — splat — **Splat**A Jam Jar win splashes jam across the grid with the total in the middle.

Jammin' Jars — free games — **Free games**Free games in progress: the jars stay put and carry their multipliers from spin to spin.

07 · Our verdict

A party that builds and builds

Jammin' Jars is a modern classic of cluster slots. The grid is busy, the cascades keep spins alive, and the Jam Jars give the game a story: a jar that joins win after win keeps growing, and in the six free games it never resets. Most spins pay little or nothing — this is high volatility — but few slots make a single bonus round this exciting to watch.

Reviewed by Lewis Marsh · Updated November 9, 2026

+Growing jar multipliers
+Jars stay in free games
+Cascades on every win
+20,000× ceiling
−High volatility
−Only 6 free games

8.6OF 10

Excellent

Our score

08 · The studio

From Push Gaming

Push Gaming is a London studio with a small, carefully made catalogue of high-volatility slots. Jammin' Jars became one of its signature titles and got a sequel, Jammin' Jars 2, in 2021.

More about Push Gaming

2010Founded

LondonHead office

2018Jammin' Jars

2021The sequel

The jar hits the floor

One of the Jam Jars has grown four wobbly jelly legs and is dancing across the disco floor. Tap a tile to steer it, or start a fruit rush.

Jam Jar · 4 × 2-segment legsBest 000 · Steps 0000

Fruit rush

Strawberries and other fruit pop up on the dance floor for a few seconds — tap one and the jar boogies over: strawberries score 3, other fruit 1. Wasps buzz around the jam and a sting costs a leg; a sugar cube fixes it. Lose three legs or run out of 60 seconds and the party is over.