Jammin' Jars Slot Review

Game Overview

Jammin' Jars by Push Gaming is a vibrant fruit-themed cluster pays slot on an 8×8 grid that became an instant classic upon its 2018 release. The game features colourful fruit symbols — strawberries, plums, oranges, apples, and raspberries — bouncing across the grid with infectious energy. But the star of the show is the jam jar wild symbol.

Jam jars act as wild symbols that substitute for all fruit symbols. What makes them special is their stacking multiplier mechanic: every time a jam jar is part of a winning cluster, its multiplier increases by 1x. After the cascade, the jar moves to a new random position on the grid. If it creates another winning cluster in its new position, the multiplier grows again. A single jam jar can build a multiplier of 10x, 20x, or even higher across multiple cascades. In free spins (triggered by 3+ jars appearing simultaneously), the multipliers can reach astronomical levels, driving the game's impressive 20,000x maximum payout.

Key Features

• • Roaming Wild Jars: Jam jar wilds substitute for all symbols. After each cascade, they move to random positions. Each win they participate in increases their multiplier by 1x.
• • Stacking Multipliers: Jar multipliers persist and grow across cascades. Multiple jars in the same cluster multiply their multipliers together — a 5x and 8x jar in one cluster = 40x multiplier.
• • Cluster Pays: Match 5+ identical fruit symbols horizontally or vertically to win. Larger clusters pay significantly more.
• • Free Spins: 3+ jar symbols appearing on a single spin trigger 6 free spins. Jar multipliers continue building throughout the entire free spins session.
• • Rainbow Feature: Randomly transforms a group of symbols into one type for guaranteed large clusters.

Jammin' Jars vs Jammin' Jars 2

Push Gaming released Jammin' Jars 2 in 2021, adding a Giga Jar feature with a colossal jar that spawns multiple smaller jars when it lands. While the sequel adds excitement, it has a lower RTP (96.40% vs 96.83%) and a slightly different feel. Most experienced players prefer the original for its higher returns and purer multiplier stacking mechanic. The original also has a larger established player base and more proven win potential.