In short: Jammin' Jars is Push Gaming's 2018 disco-fruit slot on an 8x8 cascading grid, where clusters of five or more pay and jam jars act as wild, scatter and growing multiplier all at once. It is a one-idea game done well: everything hinges on how long a jar can stay involved in a chain. It suits high-volatility fans who like a simple rulebook with a big ceiling.
Sixty-four cells and a dance floor
Push Gaming announced Jammin' Jars on 18 September 2018 as a mobile-first slot with a disco theme and a cast of fruit and jam jars. It plays on an 8x8 grid with cascading cluster pays: match five or more symbols to win, the winners clear, and new fruit drops in. The studio's pitch at launch was features that are easy to understand with large win potential, and that is a fair summary.
It sits in Push's Push Originals line and remains one of the studio's signature games, followed by a sequel in 2021.
The jam jar does three jobs
The jam jar is a wild and a scatter. It also carries a multiplier that starts at 1x and applies to every win the jar contributes to. As wins land, the jars dance across the grid and their multipliers grow, so a long cascade can hit the same jar several times with an ever-larger multiplier.
That is the whole design in one symbol. Single spins rarely matter on their own; what matters is whether a jar stays part of a chain long enough for its multiplier to climb. In the free demo, follow one jar through a cascade and watch its number rise.
Free Games and the Rainbow
Three or more jam jars anywhere on the grid start the Free Games, which Push billed as the Funky Free Games at launch. Multipliers join in during the round, and the bonus is where the game's biggest results come from.
The Rainbow feature triggers at random and drops giant fruit onto the dance floor, which can burst into wins. Push also offers a bonus buy for the game, where the market and casino allow it.
RTP, volatility and the 19,998.5x figure
Push supplies two RTP settings, 96.83% and 94.25%, and says the figure varies by casino; it appears in the game's user panel and on the loading screen. One Ontario-regulated casino shows the higher 96.83%. Check before playing for real; why the same slot can have different RTP explains why two versions exist.
Volatility is high, by Push's own rating. The 19,998.5x figure is worth reading carefully: Push presents it as the highest win it has observed rather than a hard cap, and some casinos round it to 20,000x. Either way it is a rare extreme, not a typical bonus result. Push does not publish a hit frequency, so there is no official figure for how often a spin pays.
Jammin' Jars 2
The 2021 sequel keeps the jars and adds a Gold Vinyl meter that unlocks a Giga Jar feature, plus a Fruit Blast mechanic, with a 50,000x maximum. It has more moving parts; the original is the cleaner of the two and easier to read in a short session.
Where it goes quiet
With five-symbol clusters needed on a 64-cell grid and most of the value tied to jars and free games, plenty of spins end with a small win or nothing. That is normal for a high-volatility game built on chains rather than single hits.
Jammin' Jars is a good pick if you like a slot you can understand in a minute but that can still produce a very large result. If you want a progress meter, several bonus types or steady small returns, the sequel or a lower-volatility game will suit you better.
