Clusters and jars
In the standard rules, five or more touching symbols win. Jar wilds join clusters and add their multiplier, which grows each time they take part.
Giga Jar
The Giga Jar feature drops fruit symbols across the grid, and the rules page explains how it triggers. It can start big chains, or fizzle.
Jammin Jars 2 at a glance
| Detail | What we know |
|---|---|
| Studio | Push Gaming |
| Grid | 8 by 8, clusters (check the paytable) |
| Volatility | Usually described as high; check the info panel |
| RTP on Stake | Check on Stake |
Before you play
Set a budget and a stop time. Read the paytable in the game. If you're new, start with how to play slots. More from Push Gaming is on our studio page.
Our verdict
Jammin Jars 2 is a bright, cheerful slot with harsh math underneath. It plays on an eight by eight grid with cluster pays. Jar wilds move around the grid with each tumble, and their multipliers grow when they join a winning cluster. The Giga Jar feature can fill the grid with fruit for a single big moment. Most spins are small or empty, and the game's biggest results need jars with high multipliers to land in the same clusters, which is rare. If you like a lively screen and accept high variance, it's a fun game to watch. If you want steady returns, look for something gentler. The RTP, max win and any buy price are shown in the info panel.
How jars move and grow
A jar acts as a wild. When it's part of a winning cluster, its multiplier increases, and after the tumble it moves to a new position on the grid. That means a jar can take part in several wins in one chain, growing each time. When more than one jar joins the same cluster, their multipliers combine on that win. The paytable explains the exact rules for growth and movement.
The Giga Jar
The Giga Jar is a feature that can trigger on a spin and fill parts of the grid with fruit symbols. It can lead to big clusters on a single spin. It doesn't trigger often. The rules page explains how it works in the version Stake runs.
Free spins
In the standard rules, free spins start when enough jars land at once. The paytable confirms the trigger. In free spins, jar multipliers can stay with the jars for the whole round, so a round that builds early can pay well. Bonus buys are offered where local rules allow.
Cluster math in plain terms
Clusters on a large grid tend to produce many small wins, because touching symbols are common. But the paytable values for small clusters are low, often less than your bet. The game's value sits in big clusters with high jar multipliers. So the base game feels busy while slowly costing you, and the rare big chain makes up the average. That's what high variance looks like on a cluster grid.
How it compares
Sugar Rush and Fruit Party use cluster grids too, with multiplier spots and random multipliers instead of moving jars. Razor Shark is the studio's reel-based alternative. The studio is covered on our Push Gaming page.
Who it suits
Players who enjoy a busy, colorful grid and can wait for a feature. Keep bets small enough to see several rounds of free spins, and set a deposit limit before your first spin.
What to check in the info panel
Read the RTP for the version Stake runs, how jar multipliers grow and whether they carry over, the max win, and the buy price where a buy is offered. Note the date, because figures can change.
A session plan
Use a bet that gives you several hundred spins. Expect long stretches of small wins below your bet. Set a stop point and keep to it.
Common misreadings
A jar with a big multiplier that moves away from a cluster isn't a near miss. Busy tumble chains that pay less than your bet aren't a sign the game is warming up. And the Giga Jar doesn't become more likely after a long gap. The paytable describes how often features happen in general, not when.
Staying in control
18+ only, or the higher legal age where you live. Stake.com isn't available in the United States, the United Kingdom, Australia, Ontario, and the other countries on Stake's prohibited list. The availability page has the current picture, and we won't explain ways around a block. Set a deposit limit on day one and turn on 2FA. Gambling can be addictive. If you notice yourself raising bets to win money back, stop and look at our responsible gambling page.
FAQ
Is it like the first Jammin Jars?
Same core idea with new features. Read the rules rather than assuming it plays the same.
Is it on the high-RTP list?
Check the RTP in the game's info panel on Stake. Our RTP explainer shows how to read it.
Does it have a bonus buy?
Where allowed.
Do jars keep their multipliers?
In free spins they can keep them for the round. In the base game, check the paytable for how the version on Stake handles it.
How big is the grid?
Eight by eight, with cluster pays. Five or more touching symbols usually make a win; the paytable confirms the rule.
Is it good for small budgets?
Usually not. It's usually described as high variance. Use a small bet if you try it.