SlotMill

StarSpell

RARE Slots Video Slots Fantasy Magic Space Book Witches

A low-volatility spellcasting slot driven by accumulating sticky Wild reels

Only 0.2% of slots feature Starburst Mechanic.

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

96.12%

return to player

Volatility

Low volatility

variance

Max win

1,200×

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.6 ★

12 votes

DEMO Play free, no signup

SlotMill

Embed on your site

4.6 / 5

12 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 96.12% → 9.0/10

Volatility6/10

low → 6.0/10

Win Potential6.2/10

x1200.00 (1200×) → 6.2/10

Features7.5/10

12 features → 7.5/10

Game Mechanics5.1/10

f=12 r=5 p=10 → 5.1/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–100 (×1000) → 6.0/10

Provider Reputation7.8/10

provider avg 7.8 → 7.8/10

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: 65 — StarSpell by SlotMill

https://slotranker.com/slotmill/starspell#score

How to cite

Slot Summary

Arriving in July 2020, StarSpell uses its Magic and Witches setting to frame a low-volatility game about Wild placement rather than a separate bonus round. Slotmill lets Expanding Wilds appear on the three middle reels, where they trigger Respins, remain Sticky, and raise the win Multiplier as more Wilds join. Wins also run in both directions across ten fixed lines.

How It Plays

All ten paylines remain active, and combinations are checked from both sides of the reel set. The player changes only the total stake rather than selecting individual lines.

The central reels carry the feature pressure because only those positions can receive Expanding Wilds. Each qualifying Wild creates a free Respin with its reel held in place.

Theme & Atmosphere

Magic, Witches, Fantasy, and Space shape StarSpell as a compact spellcasting scene rather than a Book slot dependent on chapter-like bonus stages.

The supernatural theme supports the mechanic cleanly: Wild reels appear like accumulating spell effects, and their continued presence during Respins makes the magical subject functional rather than ornamental.

Fantasy Magic Space Book Witches

Features & Win Potential

Expanding Wilds can appear on the three middle reels and remain Sticky during the resulting Respin. Another Wild can trigger a further Respin with more fixed substitution space.

The Multiplier depends on Wild count. Two present Wilds increase qualifying wins, while three raise the Multiplier again, linking the Respin chain directly to win value.

Multiplier Respins 5 Reels Expanding Wilds Pay Both Ways Low volatility Sticky Wilds Expanding Symbols RTP range 10 Paylines 96% RTP Starburst mechanic

Spec sheet

StarSpell at a glance.

Identity

Slot nameStarSpell

StudioSlotMill

Released7/10/2020

Math

SlotRanker Score65

RTP96.12%

VolatilityLow volatility

Max win1,200×

Bet range$0.10 – $100.00

Player rating4.6 / 5 · 12 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 96.12% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.55

Cost per session$1.55

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 StarSpell? 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: Low

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 (Low). The model is calibrated so the average return equals this slot's published RTP (96.12%), with wins capped at its top multiplier (1,200×).

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 StarSpell

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 StarSpell with other games

	StarSpell Score 65This game	Wild Witches Score 82	Witchin WInnin Score 82	3 Lucky Witches Score 78	Diamond Tales: The Little Mermaid Score 76
Identity
Studio	SlotMill	Popiplay	Skywind Group	4ThePlayer	Greentube
Released	7/10/2020	2/20/2024	11/25/2021	10/4/2023	3/28/2023
Math
RTP	96.12%	97.42%	96.5%	96%	95.04%
Volatility	Low volatility	High volatility	High volatility	High volatility	—
Max win	1,200×	10,100×	—	5,000×	50,000×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	10	15	5	243	40
Min bet	0.1	0.1	0.1	0.2	0.2
Max bet	100	20	300	30	40
Features
Progressive	—	—	—	—	—
Wild symbol	—	✓	✓	✓	✓
Free spins	—	✓	✓	✓	—
Scatter symbol	—	✓	✓	✓	✓
Multiplier	✓	—	—	✓	✓
Bonus game	—	—	—	—	✓
Respins	✓	—	✓	—	✓

Every number is shown as a delta against StarSpell.

Comparing against

StarSpell

SlotMill

RTP

96.12%

Max win

1,200×

Score

+ Wild+ Free Spins+ Scatter− Multiplier− Respins

+ Wild+ Free Spins+ Scatter− Multiplier

+ Wild+ Free Spins+ Scatter− Respins

Diamond Tales: The Little Mermaid

+ Wild+ Scatter+ Bonus Game

Explore More Games with Similar RTP

	Provider	RTP	Volatility	Max win	Score
Gluttony	NoLimit City	96.09%	High volatility	32,000×	88
Hypernova Megaways	ReelPlay	96.09%	High volatility	8,641×	80
Pond of Plinko	Print Studios	96.1%	High volatility	30,000×	91
Big Bucks Bandits	ReelPlay	96.1%	High volatility	10,000×	84
Chilli Bandits	SlotMill	96.11%	High volatility	15,000×	87
StarSpell	SlotMill	96.12%	Low volatility	1,200×	65
Aussies Vs Emus	Blue Guru Games	96.12%	High volatility	—	88
Super Rainbow Megaways	1X2gaming	96.13%	High volatility	35,000×	88
Megaways Jack Frost	Iron Dog Studio	96.14%	High volatility	25,000×	88
Coop Clash	Bullshark Games	96.15%	Medium/High	12,000×	90
Showdown Saloon	Fortune Factory Studios	96.16%	High volatility	—	71