Gemstone Jam

Yggdrasil Gaming
Gemstone Jam

Gemstone Jam is a gem and classic-themed slot by Yggdrasil Gaming.

It features a 5x3 reel configuration with 9 paylines.

Key features include a maximum win of 10,000x bet, multiplier wilds, and a nudge feature.

Specifications

Reel Config

5x3

Paylines

9 Lines

RTP

94.6%

Volatility

-

Max Win

10,000x

Bonus Buy

-

Demo Play

FeatureMatch™

A compact mechanical profile

The roles represented here are symbol changes, reward enhancement and separate prizes. The wild family brings combination-forming mechanics into the mix. The jackpot family accounts for a separate reward route within the profile.

Feature richness

The core game is accompanied by a limited number of special features, keeping the overall feature structure compact.

Feature mechanics
2
Feature families
2

Feature profile

Select a role to explore its contributing features.

Number of features contributing to each role. One feature can contribute to several roles.

How we analyze this game’s features

Each bar counts the features that contribute to a functional role. One feature can contribute to more than one role. Bar lengths are scaled to the largest count within this game; compare the numbers when looking across games.

These counts describe feature composition. They are not win probabilities, payout contributions, or quality ratings.

All features 4

Highlight Features

Multiplier Wild

A Multiplier Wild is a powerful hybrid wild that combines the basic ability of a wild to substitute for other symbols with a multiplier feature that amplifies the payout itself. The core of this feature is not just about connecting a broken combination, but about multiplying the value of the completed winning combination several times over, turning an ordinary win into a high-payout moment.

Fixed Jackpot

A Fixed Jackpot, as the name suggests, is a jackpot with a predetermined prize amount. It pays out the same amount regardless of the player's bet size or other factors.

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About Previews

Each SlotWise Preview examines a game’s rules, specifications, and special features. We identify individual mechanics and map them to standardized feature categories, then use FeatureMatch™ to describe the game’s mechanical character. Alongside free demo access, this gives you a consistent starting point for understanding and comparing games. Where a 300SPINS™ review is available, it adds observations and results from a recorded play session.

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