Three Jam Jars, then a bonus
3 or more Jam Jar symbols landing anywhere on the board start the Free Games Feature. You then get 6 fixed free spins, played under the same cluster and cascade rules as the base game.
Base game6 free spins
Push Gaming · 2018
Jammin' Jars
An 8x8 grid, high volatility, cluster pays: Jammin' Jars by Push Gaming works without paylines. Here is what it looks like before the first spin.
- RTP
- 96.83%
- Volatility
- High
- Maximum win multiple
- x19,998
- Grid
- 8x8
The demo is free. The real game needs an account and you must be 18+.
Page contents
Know the numbers
From guessing to knowing your odds
Read this table before your first spin to know what each figure means.
| What it means | In practice |
|---|---|
| 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 |
Forget paylines, Jammin' Jars counts clusters
An 8x8 grid of fruit, neon and party symbols makes up the board of Jammin' Jars, a video slot with no paylines. A win is formed when five or more matching symbols touch horizontally or vertically anywhere on the board. Winning symbols disappear, the rest drop down to fill the gaps, and new symbols cascade in. Each cascade can start another win, so one spin may run several rounds before it settles.
3 Jam Jar symbols landing anywhere on the board trigger the Free Games Feature, which awards 6 fixed free spins under the same cluster and cascade rules. The Rainbow Feature adds Giant Fruit Symbols of one fruit type in the base game only, converting every position they cover. Sticky Wild, Walking Wild, Wild Multiplier, Progressive Multiplier and Symbol Transform sit alongside Tumble and Scatter.
Jammin' Jars explained
Stake, cascades and feature triggers
Not sure what happens after you press spin? One round runs in five clear steps.
Know what each stake pays
A$0.20 is the lowest stake and A$100 the highest on Jammin' Jars. Every round starts with the bet you set, and the payouts you see scale with that bet.
What makes a win on the grid?
Five or more matching symbols touching sideways or up and down form a win. Winners vanish, the rest drop down, and new symbols fall in to refill the board.
What do Giant Fruit Symbols do?
One or more Giant Fruit Symbols of one fruit type can land after a collapse that wins nothing. Every position they cover turns into that fruit, which can build new wins.
How many Jam Jars trigger it?
Three or more Jam Jar symbols landing anywhere on the board trigger the Free Games Feature. You then get 6 fixed free spins played under the same cluster and cascade rules.
Jammin' Jars and your budget
A$10 a spin adds up to A$100 in just ten spins. Set your limit before the first spin. Call the National Gambling Helpline on 1800 858 858 if play stops being fun.
Bonus buy price in A$ and bets
84x the base bet is the price, so at the A$10 example bet the Free Games Feature costs A$840.
| Paid entry | Total cost | RTP |
|---|---|---|
| Free Games Feature at 84x | x84 · A$840 | – |
The 96.49 and 96.83 versions compared
96.83 percent is the share of each stake the game pays back over time, measured per A$100 staked, not a promise for any single session. Crownplay shows which version runs in the game rules.
| Payback setting | RTP | Default |
|---|---|---|
| Variant 1 | 96.83% | Supported |
| Variant 2 | 96.49% | No |
Mid-round check
From plain spins to free spins
Useful before your first session, when you want to recognise a win or a bonus start.
Win screen with a cluster of touching fruit symbols 
Jam Jar symbols triggering the Free Games Feature 
Six free spins played under cluster and cascade rules
Know your potential wins
Read the money value of every win
The payouts below are in money at the example bet of A$0.50, and more symbols in one win pay more.
| Fruit type | 12+ | 15+ | 20+ | 25+ |
|---|---|---|---|---|
 Strawberry | A$5 | A$10 | A$20 | A$50 |
 Orange | A$3.12 | A$5 | A$12.50 | A$31.25 |
 Raspberry / Mulberry | A$2 | A$3.75 | A$7.50 | A$18.75 |
 Green Apple | A$1.50 | A$2.50 | A$5 | A$12.50 |
 Plum | A$1.50 | A$2.50 | A$5 | A$12.50 |
 Blueberry | A$0.50 | A$1.50 | A$2 | A$5 |
Three modes to know
Free spins and bonus features in Jammin' Jars
The usual worry is whether the free spins start on their own or need an extra step.
After a non-winning cascade
One or more Giant Fruit Symbols of a single fruit type join the board when it triggers at random in the base game, after any non-winning collapse or cascade. Every board position they cover turns into that fruit type. The feature does not run during the Free Games Feature.
Non-winning cascadeGiant Fruit Symbols
Jammin' Jars 8x8 cluster board
8x8 grid with no paylines and no ways. A win is 5 or more matching symbols touching horizontally or vertically anywhere on the board. Winning symbols vanish, the rest fall down, and new symbols drop in to refill the grid.
Placing a betCluster wins
A clearer picture before the reels turn
3 Jam Jar symbols landing anywhere on the 8x8 board start the Free Games Feature. How often that happens is not known in advance. Each spin is random, so the outcome of one session is random too, whatever the RTP version you are playing.
2 RTP versions sit behind the same reels in Jammin' Jars. Which one runs on Crownplay is shown only in the game rules, so read them before you spin. RTP is a long-run average over very many spins, not a promise for any single session.
19,998 times the bet is the most this slot can pay, and that ceiling is reached very rarely. Nobody can predict whether a session will get anywhere near it, so the maximum win says what is possible, not what to expect.
Keep your budget in charge of the session
Only players aged 18+ can play Jammin' Jars. Support is available from the National Gambling Helpline, 1800 858 858, and BetStop is the national self-exclusion register.
A session you can afford
A$100 is the highest bet here, and A$0.20 the lowest, so decide a session budget before you pick a stake.
Decide your stop point now
6 free spins can tempt a longer session, so decide your stop point before the first spin, and keep it even after a win.
Keep your account in control
A$0.50 is the example stake on the paytable, but a session is many spins, so set deposit and loss limits in your account first.
When spins feel like work
A$0.20 a spin still adds up, so pause or self-exclude through BetStop once Jammin' Jars stops being fun.
Jammin' Jars facts
Know how Jammin' Jars pays before you bet
Most players first ask how risky Jammin' Jars is and how much a single spin can pay.
Can I try Jammin' Jars in demo mode before real money?
A$0.20 is the lowest bet on Jammin' Jars, and the paytable uses A$0.50 as its example stake. Read the rules and the payouts before you choose a stake that fits your budget.
How volatile is the Jammin' Jars slot?
5 or more matching symbols make a win on the 8x8 grid, and the volatility is high. Wins can be sparse and then large, so no session result can be predicted.
How is Jammin' Jars different from Jammin' Jars 2?
50,000 times the bet is the top win of Jammin' Jars 2, while the original caps at 19,998 times. The newer title's RTP is 96.40, against 96.49 and 96.83 for the original.
What is the maximum win on Jammin' Jars slot?
19,998 times the bet is the top payout of Jammin' Jars, which is A$199,980 at the A$10 example bet. At the highest bet of A$100, the same multiple reaches A$1,999,800, and nobody can know in advance whether a session gets there.
Jammin' Jars next up
When this game gets old
At Crownplay, each slot page gives the same facts, so you can compare before you play.
Rachel Cordell
Senior editor, Australian market, former responsible gambling reviewer
Before each review goes live, I check each slot's details against the provider's game information and I keep the helpline and self-exclusion details current for Australians.