What starts the free games?
The Free Games Feature starts when 3 or more Jam Jar symbols land anywhere on the board. It awards 6 fixed free spins, and those spins follow the same cluster and cascade rules as the base game.
Base game6 free spins
Push Gaming · 2018
Jammin' Jars
Jammin' Jars is a high volatility video slot from Push Gaming. Its 8x8 grid pays clusters, not paylines, and this page walks through every part.
- RTP 96.83%
- Volatility High
- Maximum win multiple x19,998
- Grid 8x8
On this page
What kind of game is Jammin' Jars?
On the 8x8 grid, a win forms when five or more matching symbols touch horizontally or vertically anywhere on the board. There are no paylines or ways to count. After a win, its symbols disappear, the symbols above fall into the gaps, and new ones drop in from the top. The Fruits, Neon and Party theme sits on top of this cluster pays mechanic.
When three or more Jam Jar symbols land anywhere on the board, the Free Games Feature starts with 6 fixed free spins, played under the same cluster and cascade rules as the base game. In the base game only, the Rainbow Feature can follow any collapse that pays nothing. It adds Giant Fruit Symbols of one type that convert every position they cover.
Seven numbers to read
Before you set your bet
This table settles what each number means for your money before you start playing.
| What it measures | At your bet |
|---|---|
| Provider | Push Gaming |
| Return to player (RTP) | 96.49% / 96.83% |
| Volatility | High |
| Grid | 8x8 |
| Maximum win multiple | x19,998 |
| Maximum win in money | A$1,999,800 |
| Release date | 18/09/2018 |
Waiting for a trigger
Read each mode before the reels move
By the end you will know how each bonus starts and what it pays.
Watch covered spaces change type
The Rainbow Feature is random and appears in the base game only. It triggers after any non-winning collapse or cascade. It adds one or more Giant Fruit Symbols of a single fruit type, which convert every board position they cover to that fruit type.
Non-winning cascadeGiant fruit symbols
Loose icons versus connected groups
The base game uses an 8x8 grid with cluster pays. A win is 5 or more matching symbols touching horizontally and/or vertically anywhere on the board. Winning symbols are removed, remaining symbols collapse downward, and new symbols cascade in to refill it. There are no paylines or ways.
Before any spinCluster wins
Jammin' Jars symbols
Before your first spin, see what fruit is worth
Payouts below are in Australian dollars at the example bet of A$1, and more symbols in a cluster pay more.
| Cluster value | 12+ | 15+ | 20+ | 25+ |
|---|---|---|---|---|
 Strawberry | A$10 | A$20 | A$40 | A$100 |
 Orange | A$6.25 | A$10 | A$25 | A$62.50 |
 Raspberry / Mulberry | A$4 | A$7.50 | A$15 | A$37.50 |
 Green Apple | A$3 | A$5 | A$10 | A$25 |
 Plum | A$3 | A$5 | A$10 | A$25 |
 Blueberry | A$1 | A$3 | A$4 | A$10 |
A Win Understood
From One Bet to One Payout
Five steps that settle how a spin on this 8x8 board behaves from stake to cash.
Small Spin or Top Stake
Set your bet anywhere from A$0.20 to a top of A$100 before the symbols drop. Many players start at the A$1 stake the tables on this page use.
Cluster Pays Rule
Five or more matching fruits touching sideways or up and down form a cluster, and every symbol in it pays. There are no paylines to read here.
Cascades After Every Cluster
Winning symbols vanish, the rest fall toward the base and fresh fruit drops in to fill the gaps. Keep a Giant Fruit in mind, since one can turn up between these collapses.
Jam Jar Trigger
Three Jam Jars or more anywhere on the board start the Free Games Feature and a set of 6 spins runs on the same cluster rules. The jars can land on any collapse inside a round.
The Point Where You Stop
Decide a loss limit and a length of play before the first spin, then stop at whichever you reach. High volatility means those cold stretches arrive without warning.
Jammin' Jars bonus buy and its price
Three or more Jam Jar symbols start the Free Games Feature, and Bonus Buy skips the wait for 84 times the bet: A$840 at A$10.
| Bonus Buy | Price (A$) | RTP |
|---|---|---|
| Bonus Buy for Free Games | x84 · A$840 | – |
Which version Casino Rocket runs
Each spin on the 8x8 grid pays part of the stake as wins. The RTP shows how much of every A$100 staked returns over many spins; the game rules state which version Casino Rocket runs.
| Setting name | RTP | Default: yes |
|---|---|---|
| Variant 1 | 96.83% | Yes |
| Variant 2 | 96.49% | Excluded |
Screens
Jammin' Jars in Four Frames
Useful while the reels are still still and you want to see how a round looks.
Cluster win paid and multipliers counted on board 
Jam Jars landing, free spins about to start 
Free Games Feature running with sticky multipliers 
Giant Fruit symbol covering part of the board
Jammin' Jars demo
Start with the demo before wagering
Useful when you want to see how the cluster rounds work before staking.
The demo costs no money and pays nothing. The real game needs an account at Casino Rocket and the legal age of 18.
Start playingJammin' Jars results stay random
Three or more Jam Jar symbols landing anywhere on the grid start the Free Games Feature, and how often that happens is not known in advance. The result of one session is random, whatever the RTP version in use. A quiet hour and a rich one can both follow the same settings, so the RTP describes a long run, not a single visit.
Every spin on the reels is played under one of the two RTP versions listed for this slot, and which one is in use appears only in the game rules. Check that section before you compare this game with another title.
Clusters of matching symbols and the cascades after them can build toward the maximum win of Jammin' Jars, x19,998 of the bet. That ceiling is reached very rarely, so read it as an upper limit, not a target.
Jammin' Jars peers
When you want another title
This block settles which other slots this site reviews, so you can compare them before you play.
Jammin' Jars is no reason to keep going
This page is for players aged 18 and over. If gambling stops feeling like a choice, call the National Gambling Helpline on 1800 858 858 or join BetStop, the national self-exclusion register.
Decide Your Stake First
Settle on a figure you can lose without it changing your week, then keep the stake per spin inside it. A lump sum set aside up front beats watching the balance as you go.
A Win Worth Banking
Pick a point at which you stop, whether the balance is up or down when you reach it. A cascade can go on for a long time, and a stop point fixed beforehand is easier to keep.
Account Limits Already Set
Set deposit and loss limits in your account before the first spin, when the decision is calm. Lowering a limit is quick; raising one takes time, which is the point.
Take a Break or Step Away
If the next round feels like something you have to do rather than want to, stop and take a break. A pause or full self-exclusion is there for exactly that moment.
Jammin' Jars in Short
Not guesswork: what this slot actually does
You will know how the game starts, what it pays and what stays unknown.
How do the free spins start in Jammin' Jars?
Three or more Jam Jar symbols can land anywhere on the 8x8 board, and none of them needs to sit on a line. They award 6 free spins, played on the same cluster and cascade rules as paid spins.
What bets can I place on Jammin' Jars?
The lowest bet is A$0.20 and the highest is A$100. This page uses A$1, A$5 and A$10 as examples; the top of that range is where the game limit sits.
How is Jammin' Jars different from Jammin' Jars 2?
Jammin' Jars runs on an 8x8 grid with a top win of x19,998 and two return settings. The sequel came later in the series with a different grid and a top win of x50,000.
Is Jammin' Jars a high volatility slot?
Yes, the game is classed as high volatility. Wins arrive in clusters of 5 or more, and stretches without a cascade are normal rather than a sign something is wrong.
Can I play Jammin' Jars in demo mode?
Demo play is arranged at account level, so the lobby decides which titles open for practice. When a version is available to try, it runs the same board and features without staking money.
Can I buy the bonus in Jammin' Jars and what does it cost?
The Free Games Feature can be bought outright for 84 times your bet, which is A$840 at a A$10 bet. A purchase removes the wait for three Jam Jars but not the swing of a high volatility game.
Tamsin Rowe
Senior editor for Australian player content, former responsible gambling adviser
I test how every page reads on a phone screen, and I take the return and volatility figures for our six reviewed slots straight from the game information each provider publishes.