Promatic Games

Galaxy Gems

RARE Slots Video Slots Fantasy Space Gems

Space-themed line slot combining expanding Wilds with measured variance

Only 0.2% of slots feature Starburst Mechanic.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

96.05%

return to player

Volatility

Low/Medium

variance

Max win

—

top multiplier

Min bet

$5.00

per spin

Reels

grid

Player rating

5.0 ★

16 votes

DEMO Play free, no signup

Promatic Games

Embed on your site

5.0 / 5

16 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP9/10

RTP 96.05% → 9.0/10

Volatility6/10

low → 6.0/10

Win Potential—

no data

Features4.5/10

6 features → 4.5/10

Game Mechanics4.3/10

f=6 r=5 → 4.3/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

5–5000 (×1000) → 6.0/10

Provider Reputation5.8/10

provider avg 5.8 → 5.8/10

Popularity3.3/10

synthetic proxy → 3.3/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 59 — Galaxy Gems by Promatic Games

https://slotranker.com/promatic-games/galaxy-gems#score

How to cite

Slot Summary

An expanding Wild that can cover a reel and award a free spin gives Galaxy Gems its clearest break from ordinary line play. Promatic Games pairs that interruption with a 5x3 Space and Gems format, a 96.05% RTP, and Low/Medium volatility. The measured math profile contrasts with the optional Risk/Gamble decision after a win, splitting the experience between steady base play and a sharper voluntary choice.

How It Plays

Each paid spin evaluates 10 fixed paylines on the 5x3 layout. Matching combinations can form in either direction, giving both outer reels a role in starting wins.

After a payout, the Risk/Gamble option offers a separate double-or-lose decision. It is optional, so ordinary reel play does not depend on accepting that added risk.

Theme & Atmosphere

The Space setting turns Gems into the central motif rather than using conventional fruit or card imagery. Its Fantasy element comes from the interstellar treatment of those objects.

That combination gives the game a compact arcade-like identity: recognizable gem values placed in a cosmic setting without requiring a character-led story or branded narrative.

Fantasy Space Gems

Features & Win Potential

The Wild substitutes for regular symbols and can expand to occupy its complete reel. That change increases the number of paylines passing through a substitute position.

Scatter symbols and the named Starburst mechanic add event symbols to the line game, while the separate Risk/Gamble feature moves one decision beyond the reels.

Free Spins Scatter Symbol Wild Symbol Expanding Symbols Risk/Gamble (Double) game Starburst mechanic

Bonus & Free Spins

The expanding Wild awards a free spin when it activates. This is a short reel-driven interruption rather than a separately described multi-spin bonus round.

Spec sheet

Galaxy Gems at a glance.

Identity

Slot nameGalaxy Gems

StudioPromatic Games

Released

Math

SlotRanker Score59

RTP96.05%

VolatilityLow/Medium

Max win—

Bet range$5.00 – $5000.00

Player rating5.0 / 5 · 16 votes

Format

Reels5

Paylines—

Layout5x3

Features

Themes

Expected average based on this slot's 96.05% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$79.00

Cost per session$79.00

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Galaxy Gems? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: Medium-Low

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium-Low). The model is calibrated so the average return equals this slot's published RTP (96.05%), with wins capped at its top multiplier (1,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play Galaxy Gems

No matching casinos for your region yet

Casino availability depends on where you play from. We only show casinos that accept players from your country.

Compare Galaxy Gems with other games

	Galaxy Gems Score 59This game	Devil's Deal Score 83	Euphoria Megaways Score 79	Wild Worlds Score 79	3 Stellar Bonanza Score 75
Identity
Studio	Promatic Games	Hot Rise Games	iSoftbet	NetEnt	PearFiction
Released	—	10/4/2023	5/10/2023	4/9/2019	8/5/2024
Math
RTP	96.05%	96.05%	96%	96.47%	96%
Volatility	Low/Medium	Medium volatility	High volatility	Medium volatility	High volatility
Max win	—	20,000×	10,000×	2,500×	5,000×
Format
Reels	5	5	6	5	5
Layout	5x3	5x3	6x7	5x5	5x5
Paylines	—	243	117649	20	5
Min bet	5	0.2	0.2	0.2	0.2
Max bet	5000	60	20	400	5
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	—
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	✓	—	—
Bonus game	—	✓	—	✓	✓
Respins	—	—	—	—	—

Every number is shown as a delta against Galaxy Gems.

Comparing against

Galaxy Gems

Promatic Games

RTP

96.05%

Max win

—

Score

+ Multiplier+ Bonus Game

+ Bonus Game− Free Spins

Explore More Games with Similar RTP

	Provider	RTP	Volatility	Max win	Score
Candyways Bonanza 3	StakeLogic	96.01%	High volatility	20,000×	88
Zombie aPOPalypse MultiPop	AvatarUX	96.01%	High volatility	20,000×	87
Freaked Out Fish	Blue Guru Games	96.02%	High volatility	30,000×	88
Dr. Rock & The Riff Reactor	TrueLab Games	96.03%	High volatility	50,000×	88
Crystal Prince	Quickspin	96.04%	High volatility	11,630×	87
Galaxy Gems	Promatic Games	96.05%	Low/Medium	—	59
Nugget	AvatarUX	96.05%	High volatility	25,000×	88
Monkey Bonanza	Northern Lights Gaming	96.06%	High volatility	52,000×	87
Olympus Raging Megaways	iSoftbet	96.07%	High volatility	25,000×	87
JunglePop	AvatarUX	96.08%	High volatility	50,000×	88
Gluttony	NoLimit City	96.09%	High volatility	32,000×	88