StakeLogic

Gemstone Mine

Slots Video Slots Gems Treasure Underground Bomb

Underground cluster game where wins uncover multiplier positions

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

94%

return to player

Volatility

High volatility

variance

Max win

7,500×

top multiplier

Min bet

$0.20

per spin

Reels

0 lines

Player rating

4.3 ★

10 votes

DEMO Play free, no signup

StakeLogic

Embed on your site

4.3 / 5

10 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 & RTP6/10

RTP 94% → 6.0/10

Volatility9/10

high → 9.0/10

Win Potential7.8/10

x7500.00 (7500×) → 7.8/10

Features10/10

16 features → 10.0/10

Game Mechanics7.4/10

f=16 r=6 p=n/a → 7.3/10

Context signals (tie-breakers)

Layout5/10

6x6 → 5.0/10

Bet Flexibility6/10

0.2–63 (×315) → 6.0/10

Provider Reputation6.6/10

provider avg 6.6 → 6.6/10

Popularity5/10

synthetic proxy → 5.0/10

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: 70 — Gemstone Mine by StakeLogic

https://slotranker.com/stakelogic/gemstone-mine#score

How to cite

Slot Summary

Break winning clusters beside blocked positions and the mine opens outward, exposing multiplier spaces that can alter the same chain of wins. That single action gives Gemstone Mine its direction: Stakelogic uses an expanding underground grid, Cluster Pays, and Cascading to turn excavation into the actual play pattern. The 94% RTP, high volatility, and x7500 maximum place considerable weight on reaching and combining those multipliers.

How It Plays

The player needs winning clusters beside the stone perimeter to change the board. Each qualifying clear removes symbols, brings replacements into view, and weakens neighboring blocks.

Opening a blocked position reveals a hidden Multiplier. More than one active value can be combined, making the placement of consecutive cluster wins important throughout a single cascade sequence.

Theme & Atmosphere

The Underground setting is tied directly to play: clearing blocks resembles excavating deeper into a closed mine rather than simply spinning against a decorative cave.

Gems and Treasure supply the collectible objects, while the Bomb theme appears through dynamite Scatter symbols that connect the mine setting to the Free Spins trigger.

Gems Treasure Underground Bomb

Features & Win Potential

Cluster Pays replaces ordinary paylines, and Colossal Reels allow the Grid to widen as blocked positions open. Revealed Multipliers can combine before applying to wins.

High volatility and the x7500 ceiling put substantial weight on Multiplier combinations. Bonus Bet and Bonus Buy provide optional ways to increase feature access where available.

High volatility Free Spins 6 Reels Multiplier Scatter Symbol Medium/High Cluster Pays Medium volatility Bonus Buy Additional Free Spins RTP range Colossal Reels Grid Bonus Bet Free Spins Multiplier Random multiplier

Bonus & Free Spins

Free Spins are triggered by dynamite Scatter symbols and can award up to 30 spins. The Free Spins Multiplier persists during the round, while Additional Free Spins can extend it.

Bonus Buy offers direct entry to the feature in supported markets, while Bonus Bet increases the chance of reaching selected mechanics through ordinary paid play.

Spec sheet

Gemstone Mine at a glance.

Identity

Slot nameGemstone Mine

StudioStakeLogic

Released6/5/2024

Math

SlotRanker Score70

RTP94%

VolatilityHigh volatility

Max win7,500×

Bet range$0.20 – $63.00

Player rating4.3 / 5 · 10 votes

Format

Reels6

Paylines0

Layout6x6

Expected average based on this slot's 94% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$4.80

Cost per session$4.80

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 Gemstone Mine? 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: High

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 (High). The model is calibrated so the average return equals this slot's published RTP (94.00%), with wins capped at its top multiplier (7,500×).

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 Gemstone Mine

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 Gemstone Mine with other games

	Gemstone Mine Score 70This game	Miners Matter Score 77	Glow Dig Score 73	Ready to Blow: Thundershots Score 66	Cave of Gems Score 62
Identity
Studio	StakeLogic	RAW iGaming	Max Win Gaming	Psiclone Games	BF games
Released	6/5/2024	9/12/2024	8/21/2024	4/8/2023	8/7/2024
Math
RTP	94%	95.57%	96.04%	95.51%	94.09%
Volatility	High volatility	Medium/High	High volatility	Medium volatility	High volatility
Max win	7,500×	7,265×	5,000×	15,633×	500×
Format
Reels	6	6	5	5	5
Layout	6x6	6x5	5x4	5x3	5x3
Paylines	0	Cluster Pays	20	20	30
Min bet	0.2	0.2	0.1	0.1	0.3
Max bet	63	30	100	500	90
Features
Progressive	—	—	—	—	—
Wild symbol	—	—	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	✓	✓	—	—	✓
Bonus game	—	✓	—	—	—
Respins	—	✓	—	—	—

Every number is shown as a delta against Gemstone Mine.

Comparing against

Gemstone Mine

StakeLogic

RTP

94%

Max win

7,500×

Score

+ Bonus Game+ Respins

Ready to Blow: Thundershots

Explore More Games with Similar RTP

	Provider	RTP	Volatility	Max win	Score
Scopa	Habanero	93.96%	High volatility	4,000×	67
Carnival Cow Coin Combo	Light & Wonder	93.97%	High volatility	30,000×	71
Dream Drop Diamonds	Relax Gaming	93.98%	High volatility	10,640×	66
Flying Hippo	Pragmatic Play	93.99%	High volatility	5,000×	68
Gemstone Mine	StakeLogic	94%	High volatility	7,500×	70
Cash Truck 3 Turbo	Quickspin	94%	High volatility	40,000×	78
Thunderstruck Stormchaser	Stormcraft Studios	94.01%	High volatility	10,200×	75
Masters Of Olympus	Snowborn Games	94.02%	High volatility	20,000×	77
San Quentin 2	NoLimit City	94.03%	High volatility	200,000×	76
I Hate Fairytales	Elysium Studios	94.04%	High volatility	33,934×	78
Cash Truck	Quickspin	94.05%	High volatility	25,000×	76

01How do wins form in Gemstone Mine?

Matching symbols pay as clusters rather than across paylines. Winning groups disappear through Cascading, allowing replacement symbols to create another result in the same sequence.

02What happens when blocked positions open?

Winning clusters beside a blocked position gradually uncover it. Once exposed, the position can reveal a Multiplier that applies to qualifying wins in the active sequence.

03Does Gemstone Mine have free spins?

Yes. Dynamite Scatter symbols trigger Free Spins, where the Multiplier becomes persistent and can increase as the round continues. Additional Free Spins are also available.

No player notes yet

Be the first to share your experience with this slot.