Nucleus Gaming

Solar Spins

A Space slot divided between two distinct bonus routes

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

96.3%

return to player

Volatility

—

variance

Max win

—

top multiplier

Min bet

$0.20

per spin

Reels

20 lines

Player rating

4.7 ★

5 votes

DEMO Play free, no signup

Nucleus Gaming

Embed on your site

4.7 / 5

5 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 96.3% → 9.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential—

no data

Features6.5/10

8 features → 6.5/10

Game Mechanics5.4/10

f=8 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 Reputation6.3/10

provider avg 6.3 → 6.3/10

Popularity6.7/10

synthetic proxy → 6.7/10

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: 72 — Solar Spins by Nucleus Gaming

https://slotranker.com/nucleus-gaming/solar-spins#score

How to cite

Slot Summary

Solar Spins occupies the middle ground between a conventional 20-line Space slot and a feature-led Hold and Win game. Nucleus Gaming gives the Sun theme two separate routes beyond the base game: Free Spins through Scatter symbols, and a Hold and Win round where collected symbols can extend the respins. The 96.3% RTP and Bonus Buy option make the choice of entry route as important as the familiar 5x3 format.

How It Plays

The base game uses 20 fixed paylines across a 5x3 layout. Wild symbols substitute in line combinations, while Scatter and Sun Bonus symbols direct play toward different features.

Solar Spins separates its special-symbol objectives clearly. Blackhole Scatters lead to Free Spins, whereas a sufficient group of Sun Bonus symbols moves play onto a dedicated Hold and Win grid.

Theme & Atmosphere

The Space setting gives each feature an immediate visual role: the Sun identifies the collection round, while a black hole marks the route into Free Spins.

Rather than treating the Sun theme as decoration alone, Solar Spins connects it to the symbols retained during Hold and Win, keeping the central motif readable during play.

Space Sun

Features & Win Potential

Hold and Win begins with retained Sun Bonus symbols and three respins. Every new qualifying symbol resets the remaining respins, extending the opportunity to fill more positions.

The Wild and Scatter Symbol handle conventional substitution and Free Spins access, while Bonus Buy provides an optional shortcut to the principal feature routes.

Free Spins Scatter Symbol Wild Symbol 5 Reels Bonus Buy 96% RTP Hold and Win 20 Paylines

Bonus & Free Spins

Six or more Sun Bonus symbols trigger Hold and Win. The triggering symbols stay fixed, three respins begin, and every new Sun Bonus symbol resets that count.

Three or more Blackhole Scatter symbols open Free Spins instead. Solar Spins therefore asks players to watch two independent triggers rather than funneling every bonus outcome through one symbol.

Spec sheet

Solar Spins at a glance.

Identity

Slot nameSolar Spins

StudioNucleus Gaming

Released10/16/2023

Math

SlotRanker Score72

RTP96.3%

Max win—

Bet range$0.20 – $100.00

Player rating4.7 / 5 · 5 votes

Format

Reels5

Paylines20

Layout5x3

Features

Themes

Expected average based on this slot's 96.3% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.96

Cost per session$2.96

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 Solar Spins? 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: Mediumassumed — not published for this slot

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 (96.30%), 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 Solar Spins

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Compare Solar Spins with other games

	Solar Spins Score 72This game	Big Bang Score 86	Starburst Galaxy Score 84	Hypernova Megaways Score 80	Starsign Clusters Score 80
Identity
Studio	Nucleus Gaming	Belatra Games	NetEnt	ReelPlay	G.Games
Released	10/16/2023	1/23/2023	10/31/2024	8/16/2019	8/2/2022
Math
RTP	96.3%	96.11%	96%	96.09%	97.5%
Volatility	—	High volatility	Medium/High	High volatility	—
Max win	—	5,000×	25,000×	8,641×	—
Format
Reels	5	8	6	6	7
Layout	5x3	8x8	6x5	6x7	7x7
Paylines	20	Cluster Pays	10	117659	6
Min bet	0.2	0.2	0.2	0.2	0.2
Max bet	100	100	28	25	20
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	—
Free spins	✓	✓	—	—	✓
Scatter symbol	✓	—	✓	✓	—
Multiplier	—	✓	✓	✓	—
Bonus game	—	—	✓	—	✓
Respins	—	—	—	✓	—

Every number is shown as a delta against Solar Spins.

Comparing against

Solar Spins

Nucleus Gaming

RTP

96.3%

Max win

—

Score

+ Multiplier− Scatter

+ Multiplier+ Bonus Game− Free Spins

+ Multiplier+ Respins− Free Spins

+ Bonus Game− Wild− Scatter

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