Nocturn Play

The Sapphire Sleeper

Play The Sapphire Sleeper slot by Nocturn Play for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

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

95.46%

return to player

Volatility

Medium volatility

variance

Max win

1,000×

top multiplier

Min bet

—

per spin

Reels

—

grid

Player rating

4.4 ★

19 votes

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4.4 / 5

19 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 95.46% → 8.0/10

Volatility8/10

medium → 8.0/10

Win Potential6/10

x1000.00 (1000×) → 6.0/10

Featuresn/a

not applicable

Game Mechanicsn/a

not applicable

Context signals (tie-breakers)

Layoutn/a

not applicable

Bet Flexibilityn/a

not applicable

Provider Reputation6.8/10

provider avg 6.8 → 6.8/10

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: 59 — The Sapphire Sleeper by Nocturn Play

https://slotranker.com/nocturn-play/the-sapphire-sleeper#score

How to cite

Spec sheet

The Sapphire Sleeper at a glance.

Identity

Slot nameThe Sapphire Sleeper

StudioNocturn Play

Released10/12/2026

Math

SlotRanker Score59

RTP95.46%

VolatilityMedium volatility

Max win1,000×

Bet range—

Player rating4.4 / 5 · 19 votes

Format

Reels—

Paylines—

Layout—

Expected average based on this slot's 95.46% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.63

Cost per session$3.63

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 The Sapphire Sleeper? 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 (95.46%), 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 The Sapphire Sleeper

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Compare The Sapphire Sleeper with other games

	The Sapphire Sleeper Score 59This game	Scratch Mania Score 82	Carnaval Scratchcard Score 78	Princess Goddess Scratch BB Score 77	Fortune Gems Scratch Score 74
Identity
Studio	Nocturn Play	Iron Panda	Caleta Gaming	Barbara Bang	Jili Games
Released	10/12/2026	2/2/2026	1/27/2022	12/4/2023	12/30/2024
Math
RTP	95.46%	96.89%	96.33%	97%	—
Volatility	Medium volatility	—	—	—	High volatility
Max win	1,000×	100,000×	40,000×	—	10,567×

Every number is shown as a delta against The Sapphire Sleeper.

Comparing against

The Sapphire Sleeper

Nocturn Play

RTP

95.46%

Max win

1,000×

Score

Princess Goddess Scratch BB

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