Synot Games

Grand Gems

Slots Video Slots Joker Carnival Gems Luxury

Play Grand Gems slot by Synot Games for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

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SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

95.08%

return to player

Volatility

Medium volatility

variance

Max win

500×

top multiplier

Min bet

$0.20

per spin

Reels

20 lines

Player rating

5.0 ★

1 votes

DEMO Play free, no signup

Synot Games

5.0 / 5

1 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 & RTP8/10

RTP 95.08% → 8.0/10

Volatility8/10

medium → 8.0/10

Win Potential5.4/10

x500.00 (500×) → 5.4/10

Features5/10

7 features → 5.0/10

Game Mechanics5.4/10

f=7 r=5 p=20 → 5.4/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.2–100 (×500) → 6.0/10

Provider Reputation6.1/10

provider avg 6.1 → 6.1/10

Popularity0/10

synthetic proxy → 0.0/10

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: 55 — Grand Gems by Synot Games

https://slotranker.com/synot-games/grand-gems#score

How to cite

Spec sheet

Grand Gems at a glance.

Identity

Slot nameGrand Gems

StudioSynot Games

Released8/10/2019

Math

SlotRanker Score55

RTP95.08%

VolatilityMedium volatility

Max win500×

Bet range$0.20 – $100.00

Player rating5.0 / 5 · 1 votes

Format

Reels5

Paylines20

Layout5x3

Features

Themes

Expected average based on this slot's 95.08% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.94

Cost per session$3.94

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 Grand 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

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). The model is calibrated so the average return equals this slot's published RTP (95.08%), with wins capped at its top multiplier (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.

Compare Grand Gems with other games

	Grand Gems Score 55This game	Countdown to Fortune Score 75	Lady Luxe Joker Score 72	Harlequin Carnival Score 68	Heart of Romance Score 68
Identity
Studio	Synot Games	Naga Games	Just For The Win	NoLimit City	Konami
Released	8/10/2019	12/25/2024	5/30/2024	4/7/2020	2/2/2018
Math
RTP	95.08%	96.46%	96.05%	94.29%	96.06%
Volatility	Medium volatility	Medium volatility	Medium volatility	High volatility	Medium volatility
Max win	500×	—	5,000×	5,861×	1,000×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	20	5	30	20	30
Min bet	0.20	0.00	0.20	0.20	0.30
Max bet	100.00	0.00	50.00	1.00	100.00
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	—	✓	✓	✓	✓
Multiplier	✓	✓	—	✓	✓
Bonus game	—	✓	✓	—	—
Respins	✓	✓	—	✓	—

Every number is shown as a delta against Grand Gems.

Comparing against

Grand Gems

Synot Games

RTP

95.08%

Max win

500×

Score

+ Free Spins+ Scatter+ Bonus Game

+ Free Spins+ Scatter+ Bonus Game− Multiplier− Respins

+ Free Spins+ Scatter

+ Free Spins+ Scatter− Respins

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01What RTP percentage does Grand Gems come with?

Grand Gems offers a return to player (RTP) rate of 95.08%.

02Is a demo mode available for Grand Gems?

Grand Gems is playable in demo mode, perfect for risk-free exploration.

03Is there a mobile version of Grand Gems?

Yes, the mobile version of Grand Gems has all the same functionality as the desktop version.

04Can you play for real money on Grand Gems?

Yes, just select one of the casinos shown above to start playing Grand Gems with real funds.

05How much can you win on Grand Gems in one spin?

The most you can win from a single spin in Grand Gems is x500.00 your bet.Depending on the combinations of features, you can win up to x500.00 your bet in Grand Gems.

06Can I buy the bonus round in Grand Gems?

You can’t purchase the bonus round in Grand Gems.

07Is there a Free Spins feature in Grand Gems?

In Grand Gems, there are no free spins.

08Is Grand Gems one of the Megaways games?

Grand Gems doesn’t use the Megaways mechanic.

09Does Grand Gems have a progressive jackpot?

This game does not feature a progressive jackpot.

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