Booming Games

Stellar Spins

High-volatility Space slot with expanding-symbol bonus play

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

95.13%

return to player

Volatility

High volatility

variance

Max win

1,000×

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.4 ★

10 votes

DEMO Play free, no signup

Booming Games

Embed on your site

4.4 / 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 & RTP8/10

RTP 95.13% → 8.0/10

Volatility9/10

high → 9.0/10

Win Potential6/10

x1000.00 (1000×) → 6.0/10

Features6.5/10

10 features → 6.5/10

Game Mechanics4.2/10

f=10 r=5 p=10 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility8/10

0.1–500 (×5000) → 8.0/10

Provider Reputation6.7/10

provider avg 6.7 → 6.7/10

Popularity2.5/10

synthetic proxy → 2.5/10

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: 63 — Stellar Spins by Booming Games

https://slotranker.com/booming-games/stellar-spins#score

How to cite

Slot Summary

Outer space gives Stellar Spins a setting for a compact, high-volatility game rather than a sprawling bonus machine. Booming Games uses 10 lines and a 95.13% RTP, then places its main changes in Expanding Wilds, Expanding Symbols, and Free Spins. That mix makes the game a short-line format whose risk profile matters as much as its Space and Gems presentation.

How It Plays

The base game uses 10 fixed paylines, and winning combinations can clear space for replacement symbols, allowing another result to form from the same paid spin.

An Expanding Wild can appear on the third reel, creating a focused change at the center of the 5x3 grid rather than altering every reel equally.

Theme & Atmosphere

Space supplies the backdrop while Gems provide the lower-value symbol language, giving Stellar Spins a hybrid of cosmic scenery and recognizable reel-machine objects.

The stellar subject also explains why its expanding effects carry celestial names, connecting the bonus presentation to the Space label without obscuring the compact 10-line format.

Space Gems

Features & Win Potential

Expanding Wilds can alter the center reel, while Expanding Symbols change symbol coverage more broadly during the Free Spins feature after it activates.

Wild, Scatter, and Bonus symbols divide the special functions among substitution and feature access, leaving ordinary payline wins separate from the bonus route.

High volatility Free Spins Scatter Symbol Wild Symbol Medium/High 5 Reels Expanding Wilds Expanding Symbols 10 Paylines Bonus symbols

Bonus & Free Spins

Landing 3 Scatter symbols can award 8 Free Spins, with an Expanding Symbol providing the main alteration during the awarded sequence.

Spec sheet

Stellar Spins at a glance.

Identity

Slot nameStellar Spins

StudioBooming Games

Released3/14/2019

Math

SlotRanker Score63

RTP95.13%

VolatilityHigh volatility

Max win1,000×

Bet range$0.10 – $500.00

Player rating4.4 / 5 · 10 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 95.13% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.95

Cost per session$1.95

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 Stellar 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: 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 (95.13%), 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 Stellar Spins

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

Compare Stellar Spins with other games

	Stellar Spins Score 63This game	Hot Rocks Score 88	Starburst Galaxy Score 84	Devil's Deal Score 84	Chocolate Rocket Score 83
Identity
Studio	Booming Games	Massive Studios	NetEnt	Hot Rise Games	Backseat Gaming
Released	3/14/2019	4/20/2025	10/31/2024	10/4/2023	2/18/2025
Math
RTP	95.13%	96.65%	96%	96.05%	96.37%
Volatility	High volatility	High volatility	Medium/High	Medium volatility	High volatility
Max win	1,000×	50,000×	25,000×	20,000×	12,500×
Format
Reels	5	6	6	5	6
Layout	5x3	6x6	6x5	5x3	6x5
Paylines	10	Pay Anywhere	10	243	19
Min bet	0.1	0.1	0.2	0.2	0.1
Max bet	500	100	28	60	100
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	—	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	✓	✓	✓
Bonus game	—	—	✓	✓	—
Respins	—	—	—	—	—

Every number is shown as a delta against Stellar Spins.

Comparing against

Stellar Spins

Booming Games

RTP

95.13%

Max win

1,000×

Score

+ Multiplier+ Bonus Game− Free Spins

+ Multiplier+ Bonus Game

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