Inspired

Book of Halloween

Slots Video Slots Magic Halloween Horror Book Festival Darkness Mystic

A Halloween treatment of the expanding-symbol book format

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

96.23%

return to player

Volatility

High volatility

variance

Max win

—

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.3 ★

8 votes

DEMO Play free, no signup

Inspired

Embed on your site

4.3 / 5

8 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 96.23% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential—

no data

Features7.5/10

12 features → 7.5/10

Game Mechanics4.2/10

f=12 r=5 p=10 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility4/10

0.1–5 (×50) → 4.0/10

Provider Reputation6/10

provider avg 6.0 → 6.0/10

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 — Book of Halloween by Inspired

https://slotranker.com/inspired/book-of-halloween#score

How to cite

Slot Summary

Halloween supplies the spellbook and the atmosphere in Inspired's Book of Halloween, while a selected expanding symbol gives the free-spin round its focus. The setting puts the book format into a spooky seasonal context. An optional gamble also connects ordinary winnings to the possibility of entering free spins.

How It Plays

The base game uses 10 paylines across a five-reel layout. Book bonus symbols also create a separate trigger when enough appear anywhere, so their positions are evaluated differently from ordinary line combinations.

After a qualifying win, the optional gamble offers a choice between pursuing increased winnings and pursuing free spins. Taking that option puts the existing award at risk rather than securing it immediately.

Bonus & Free Spins

At least 3 bonus symbols anywhere trigger 10 free spins. A symbol is selected at the start and remains the expanding symbol throughout the round, filling its reels when expansion would produce a win.

Spec sheet

Book of Halloween at a glance.

Identity

Slot nameBook of Halloween

StudioInspired

Released10/5/2019

Math

SlotRanker Score72

RTP96.23%

VolatilityHigh volatility

Max win—

Bet range$0.10 – $5.00

Player rating4.3 / 5 · 8 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 96.23% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.51

Cost per session$1.51

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 Book of Halloween? 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 (96.23%), 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 Book of Halloween

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Compare Book of Halloween with other games

	Book of Halloween Score 72This game	Dark Ritual Score 90	Book of Witches Score 68	Dr Jekyll Goes Wild Score 63	Voodoo People Score 82
Identity
Studio	Inspired	Advant Play	Thunderspin	Barcrest	BGaming
Released	10/5/2019	4/26/2024	10/24/2024	1/1/2013	9/18/2024
Math
RTP	96.23%	97.09%	95.89%	96%	96.88%
Volatility	High volatility	High volatility	High volatility	Medium volatility	Medium/High
Max win	—	20,000×	1,000×	—	7,500×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	10	3125	10	10	25
Min bet	0.1	0.1	0.1	0.1	0.1
Max bet	5	10	100	500	34
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	—	—	✓
Bonus game	—	✓	✓	✓	✓
Respins	—	—	—	—	✓

Every number is shown as a delta against Book of Halloween.

Comparing against

Book of Halloween

Inspired

RTP

96.23%

Max win

—

Score

+ Multiplier+ Bonus Game

+ Multiplier+ Bonus Game+ Respins

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