Push Gaming · 2018
Before you bet, know the basics: Jammin' Jars is a high volatility video slot by Push Gaming on an 8x8 grid with cluster pays.
The demo is free; the real game needs an account and you must be 18+.
Pick Jammin' Jars if you want a fruit-themed game with a neon and party look and no paylines. The board is an 8x8 grid, and a win needs 5 or more matching symbols that touch horizontally or vertically anywhere on the grid. Winning symbols disappear, the remaining symbols drop down, and new symbols fall in to fill the gaps. A single spin can therefore chain several wins as new symbols land.
Choose Jammin' Jars if you want a bonus round that starts from the board. Three or more Jam Jar symbols anywhere on the grid trigger the Free Games Feature, which gives 6 fixed free spins. The random Rainbow Feature appears only in the base game after a non-winning collapse, and adds Giant Fruit Symbols that convert the positions they cover to one fruit type.
Figure guide
After this table you will know what each figure means before your first spin.
| Game detail | What you see |
|---|---|
| Provider | Push Gaming |
| Return to player (RTP) | 96.49% / 96.83% |
| Volatility level | High |
| Grid layout | 8x8 |
| Maximum win multiple | x19,998 |
| Top win at highest bet | A$1,999,800 |
| Release date | 18/09/2018 |
Step order
Decide your bet, read each cluster and see when the bonus starts, before you play.
Choose a bet between A$0.20 and A$100 before the first spin. Every round uses that stake, so the bet decides what each win pays in money.
Spot five 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.
Expect the Rainbow Feature at random in the base game, after any non-winning collapse or cascade. Giant Fruit Symbols of one type convert every board position they cover.
Watch for three or more Jam Jar symbols anywhere on the board to start six fixed free spins. The spins follow the same cluster and cascade rules as the base game.
Set your limit before the first spin and stop once you reach it. Call the National Gambling Helpline on 1800 858 858 if play feels out of hand.
Payout guide
The payouts below are in Australian dollars at the example bet of A$0.40, and more symbols pay more.
| Symbol | 12+ | 15+ | 20+ | 25+ |
|---|---|---|---|---|
 Strawberry | A$4 | A$8 | A$16 | A$40 |
 Orange | A$2.50 | A$4 | A$10 | A$25 |
 Raspberry and Mulberry | A$1.60 | A$3 | A$6 | A$15 |
 Green Apple | A$1.20 | A$2 | A$4 | A$10 |
 Plum | A$1.20 | A$2 | A$4 | A$10 |
 Blueberry | A$0.40 | A$1.20 | A$1.60 | A$4 |
Clearer picture
Look at these screens and you will know how the bonus, free spins and a win appear.
Three modes to know
This part settles how each bonus starts and what happens inside it.
Keep spinning until 3 or more Jam Jar symbols land anywhere on the board, and the feature starts. It awards 6 fixed free spins, and each spin follows the same cluster and cascade rules as the base game.
Base game spin6 free spins
Keep to the base game, where the Rainbow Feature may trigger randomly after any non-winning collapse or cascade. It adds one or more Giant Fruit Symbols of a single fruit type, and each converts what it covers to that fruit type. It does not run in the Free Games Feature.
Non-winning cascadeGiant fruit symbols
Pick a bet and watch the 8x8 grid for 5 or more matching symbols touching horizontally and/or vertically anywhere on the board. Winning symbols are removed, the remaining symbols collapse downward, and new symbols cascade in to refill the grid. There are no paylines or ways.
Choosing a betCluster wins
Before you buy the Free Games Feature, note the price is 84 times your bet, so at A$10 the amount is listed in the table.
| Free Games | Price tag | RTP |
|---|---|---|
| Free Games Feature | x84 · A$840 | – |
Before you set a stake, know what the return means: for every A$100 staked, the game pays back its RTP percentage over a long run. The version running here is shown in the game rules.
| Payout rate | RTP | Set by provider |
|---|---|---|
| Variant 1 | 96.83% | Available |
| Variant 2 | 96.49% | No |
Deciding how long to keep spinning Jammin' Jars is easier when you know what comes next, and nobody knows that in advance. The frequency of the Free Games Feature is not known before you play. The result of one session is random, whatever RTP version the game runs.
Comparing the two RTP versions starts with the game rules, because the version we run for Jammin' Jars is shown only there. Read the rules before you set a bet, and do not rely on memory. Each version returns a different share of the stake over the long run, and the table shows the gap in money.
Setting expectations for the top prize starts with one fact: the maximum win of Jammin' Jars is a ceiling reached very rarely. It is set as a multiple of the bet, so the amount changes with the stake. Reaching it on one session tells you nothing about the next session, and no spin brings it closer.
Jammin' Jars practice
At Vvip15 Casino the practice mode comes first, so you see every rule before you deposit.
The demo needs no money and pays nothing. The real game needs an account with Vvip15 Casino and players aged 18+.
Play for realEntry is 18+. For support, call the National Gambling Helpline on 1800 858 858 or use the BetStop self-exclusion register.
Decide how much you can afford to lose before the first spin. Stop once that amount is gone.
Set your stopping point before the session, and keep it after a win as well.
Set deposit and loss limits on your account before the first bet, so the cap applies before any spin.
Take a break as soon as the game stops being fun, and self-exclude through BetStop if you need a longer pause.
Know what to expect
Vvip15 Casino explains each rule first, so you judge the game on its numbers.
Choosing between the two titles starts with the top prize. This slot pays up to 19,998 times the bet, while Jammin' Jars 2 pays up to 50,000 times. Jammin' Jars 2 also lists a lower RTP of 96.40, so the two versions return different amounts over time.
Comparing the two RTP versions helps you judge long-run return, not a single session. This slot offers 96.49 and 96.83, both measured per A$100 staked. Over very many spins the return moves toward these figures, while any one session can finish well above or below them.
Before you bet real money, read how a round runs on this page. Jammin' Jars is an 8x8 video slot where five or more matching symbols touching horizontally or vertically form a win. Check each stake against the A$0.20 minimum before betting.
Choosing a stake sets how much each spin costs. The lowest bet is A$0.20, and A$100 is the highest allowed here. The example bets A$0.40, A$2 and A$10 are only samples used on this page.
Aiming for the Free Games Feature means watching the grid, because three or more Jam Jar symbols anywhere on the board trigger it. The feature then awards 6 fixed free spins, played under the same cluster and cascade rules as the base game.
Wanting the bonus now means paying 84 times the base bet through Bonus Buy. At the top example bet of A$10, that comes to A$840. The purchased round plays under the same cluster and cascade rules as one triggered by symbols.
Five other slots
After this, you will have compared five other slots we review with Jammin' Jars before picking one.
Senior editor, ex-payments analyst for Australian banks
I test each verification step myself, from the photo ID to the card image, and time it. I also check every payout and withdrawal figure against the cashier before it goes live.
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