Know the fixed count up front
Three or more Jam Jar symbols landing anywhere on the board start the feature. It awards 6 fixed free spins, and each spin follows the same cluster and cascade rules as the base game.
Base game spinsFixed free spins
Push Gaming · 2018
Jammin' Jars
Matching fruit land on an 8x8 grid in Jammin' Jars, a high volatility Push Gaming video slot. Below, the page sets out each rule, payout and bonus.
- RTP
- 96.83%
- Volatility
- High
- Max win multiple
- x19,998
- Grid
- 8x8
The demo is free. The real game needs an account and players must be 18+.
Contents
Jammin' Jars overview
Jammin' Jars: what each value means for your bankroll
Ok Casino shows what each bet means in money, so you can read the game plainly.
| What you check | Per bet |
|---|---|
| Provider | Push Gaming |
| RTP | 96.49% / 96.83% |
| Volatility | High |
| Grid | 8x8 |
| Max win multiple | x19,998 |
| Max win in money | A$1,999,800 |
| Release date | 18/09/2018 |
Symbols that touch, not lines that pay
Symbols land across an 8x8 grid, and the look comes from three themes: Fruits, Neon and Party. A win needs five or more matching symbols that touch horizontally or vertically anywhere on the board. Paylines and ways play no part. Winning symbols disappear, the rest drop down, and new symbols cascade in to fill the gaps. Every cascade can make a fresh win, so one spin can run several rounds.
Three or more Jam Jar symbols that land anywhere on the board start the Free Games Feature. It awards 6 fixed free spins under the same cluster and cascade rules. The Rainbow Feature can appear at random in the base game after a collapse or cascade that wins nothing. Its Giant Fruit Symbols turn covered positions into one fruit type.
See every feature
Learn what a winning board looks like
Useful when you want to match the free spins and win screens to the rules above.
Free Games Feature board during the 6 free spins 
Free spins round under the same cluster rules 
Jam Jar symbols that trigger the Free Games Feature 
Win after a cluster of five or more symbols
Know the bonus rules
Jammin' Jars free spins and Rainbow rules
After this section you will know how each mode starts and what happens inside it.
What does the Rainbow Feature convert?
After a collapse or cascade that pays nothing, the Rainbow Feature can trigger at random. It adds one or more Giant Fruit Symbols of a single fruit type, and each one converts every board position it covers to that fruit type. It never runs during the Free Games Feature.
Base game collapseGiant fruit symbols
Your first spin on the board
Each spin lands symbols on an 8x8 grid, and a win is 5 or more matching symbols that touch horizontally or vertically anywhere on the board. Winning symbols are removed, the rest collapse downward, and new symbols cascade in to refill them. No paylines or ways apply.
Bet placedCluster wins
What a bet of A$10 costs
The bonus buy price is 84 times the bet, so at the A$10 top bet the Free Games Feature costs A$840.
| Paid extra | Amount due | RTP |
|---|---|---|
| Free Games Feature | x84 · A$840 | – |
Payback in money for every A$100
Return to player shows how much of every A$100 staked the game pays back over time. The version we run is listed in the game rules.
| RTP level | RTP | Default? |
|---|---|---|
| Variant 1 | 96.83% | Supported |
| Variant 2 | 96.49% | No |
How to play
Your first spin, step by step
By the end you will have followed one round from bet to payout.
Jammin' Jars from A$0.20
Before the board fills, you pick a bet between A$0.20 and A$100. The paytable uses A$0.50, so its payouts show what that stake returns.
When five symbols touch
Five or more matching symbols that touch horizontally or vertically form a win anywhere on the 8x8 board. Winning symbols vanish, the rest drop down, and new symbols cascade in.
Mixed board before, one fruit after
A non-winning collapse can trigger the Rainbow Feature, which adds Giant Fruit Symbols to the board. Every position they cover turns into that one fruit type.
Jammin' Jars opens with three Jam Jars
Three or more Jam Jar symbols anywhere on the board start the Free Games Feature. You receive 6 fixed free spins under the same cluster and cascade rules.
Fix your budget before spinning
Each round ends when the board shows no new cluster. Set your budget and stop point before the first spin, because no one can know the session length in advance.
Six symbols to know
What does each symbol pay?
The payouts below are in dollars at an A$0.50 bet, and a win with more matching symbols pays more.
| Which fruit | 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 |
Two ways to play
Testing the reels before you stake real money
Staking real money on a grid you have never watched cascade.
The demo needs no money and pays nothing; the real game needs an account at Ok Casino and the legal age, 18+.
Play for moneyBefore the bonus round lands
Three or more Jam Jar symbols landing anywhere on the board trigger the Free Games Feature, but no one can tell when that happens. How often the bonus round comes is not known in advance. The result of one session is random, whatever the RTP. Two sessions with the same bet can end at opposite ends of the balance, so each spin stays an open question.
Each spin on the reels runs under one of two RTP versions, and only the game rules name the one in play. Jammin' Jars has two versions, so a return figure on its own does not tell you which one you are playing. Read the game rules before you compare returns with another title.
Clusters of matching symbols can grow across the 8x8 board, and the largest pay is x19,998 of the bet. At the A$10 example bet, that ceiling is A$199,980. The ceiling is reached very rarely, so treat it as the top of the scale, not a target for any session.
Decide your limit before you press Spin
You must be 18+. If play stops being fun, call the National Gambling Helpline on 1800 858 858, or register with BetStop, the national self-exclusion register.
Jammin' Jars budget, set first
Set a budget for Jammin' Jars before you start, and treat it as money you are ready to lose. Stop when it runs out.
Right after a big win
Pick your stop point before the first spin, and keep to it after a win too. A win does not change your budget.
Losses with a fixed ceiling
Set deposit and loss limits in your account before you play, so your losses have a fixed ceiling.
From enjoyment to forced play
If Jammin' Jars stops being fun, take a break, or register for self-exclusion with BetStop. A break is the simplest way to get back in control.
Choosing a game
Compare Gates of Olympus and Zeus vs Typhon
Ok Casino puts each game's rules up front, so you can compare before you play.
Five questions answered
Bets, volatility and the feature costs
Read this before your first spin or when you compare bets and versions.
How is Jammin' Jars different from Jammin' Jars 2?
On the reels, Jammin' Jars 2 returns a little less over the long run, but its top prize is much higher. It is a separate game in the same series, with its own RTP and maximum win. This page covers Jammin' Jars only.
What is the RTP of Jammin' Jars and its versions?
The reels return an average share of bets over a very long run, which is the RTP. Jammin' Jars comes in two RTP versions, and the table shows what each one returns per A$100 staked. A short session can land far from that average.
What bets can I play on Jammin' Jars?
Every spin on the reels takes the bet you set, between A$0.20 and A$100. The examples on this page use A$0.50, A$2 and A$10, and those are illustrations, not the limits. A$100 is the highest bet allowed here.
Can I buy the Jammin' Jars free spins bonus?
Three or more Jam Jar symbols start the Free Games Feature, which gives 6 fixed free spins. Yes, you can buy it directly with Bonus Buy, for 84 times the base bet. The cost scales with your bet, so a bigger bet makes the buy cost more.
Is Jammin' Jars a high volatility slot?
Wins on the reels come unevenly, so Jammin' Jars is a high volatility slot. Long stretches without a win can happen, and the top prizes are rare. No session can show when a big win will come.
Laura Bennett
Senior editor, formerly reviewing payment processors for regulated markets
I check every payout and withdrawal figure on this site against the operator's own records before it is printed, and I confirm the licence and company details myself.