Quickspin

Book of Inferno

Slots Video Slots Fantasy Magic Fire Hell Demon

High-volatility demon fantasy slot with upgradeable expanding symbols

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

94.19%

return to player

Volatility

High volatility

variance

Max win

5,798×

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.6 ★

2 votes

DEMO Play free, no signup

Quickspin

Embed on your site

4.6 / 5

2 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 & RTP6/10

RTP 94.19% → 6.0/10

Volatility9/10

high → 9.0/10

Win Potential7.5/10

x5798.00 (5798×) → 7.5/10

Features6/10

9 features → 6.0/10

Game Mechanics4.2/10

f=9 r=5 p=10 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–100 (×1000) → 6.0/10

Provider Reputation7.3/10

provider avg 7.3 → 7.3/10

Popularity5/10

synthetic proxy → 5.0/10

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: 62 — Book of Inferno by Quickspin

https://slotranker.com/quickspin/book-of-inferno#score

How to cite

Slot Summary

Fire, demons, and a book that guides an explorer into Hell establish Book of Inferno's Fantasy setting. Quickspin uses that subject for a high-volatility, 10-payline book slot whose expanding-symbol rules carry more weight than its familiar format suggests. The 94.19% RTP makes the return profile a material part of the choice, while symbol upgrades, Free Spins, and Bonus Buy access concentrate the game's larger outcomes in specific feature states.

How It Plays

Wins are evaluated across 10 paylines on a 5x3 layout, but qualifying expanding symbols receive an additional pay-anywhere check without needing to connect consecutively from the left.

A marked symbol that forms a paying result expands across its reel. Book symbols landing with it raise the symbol through the paytable, changing which icon receives the expansion treatment.

Theme & Atmosphere

The Hell setting follows Anna the Explorer into a confrontation with demons, including named infernal commanders. Fire and Magic frame the conflict as dark Fantasy rather than historical adventure.

The Book links the visual subject to the rules by acting as more than scenery. It directs the demon hunt in the story and serves as the Wild Symbol in play.

Fantasy Magic Fire Hell Demon

Features & Win Potential

Expanding Symbols can cover full reels after forming a qualifying result, then receive a separate pay-anywhere evaluation. This changes the value of partial line coverage without adding paylines.

The Wild Symbol substitutes for regular symbols and can upgrade an expanding symbol when both appear together. Repeated upgrades can shift the selected symbol toward a higher-paying position.

High volatility Free Spins Scatter Symbol Wild Symbol 5 Reels Bonus Buy Expanding Symbols RTP range 10 Paylines

Bonus & Free Spins

The Free Spins round starts with one randomly selected expanding symbol. Landing 3, 4, or 5 Book scatters awards 10, 15, or 25 spins, and matching Book counts retrigger the same quantities.

Bonus Buy provides immediate access for 125 times the bet where the option is available. The purchased round begins through the same Book trigger conditions used by natural entry.

Spec sheet

Book of Inferno at a glance.

Identity

Slot nameBook of Inferno

StudioQuickspin

Released1/25/2023

Math

SlotRanker Score62

RTP94.19%

VolatilityHigh volatility

Max win5,798×

Bet range$0.10 – $100.00

Player rating4.6 / 5 · 2 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 94.19% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.32

Cost per session$2.32

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 Inferno? 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 (94.19%), with wins capped at its top multiplier (5,798×).

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 Inferno

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Compare Book of Inferno with other games

	Book of Inferno Score 62This game	Lucky Lucifer Score 83	Leprechaun Goes to Hell Score 76	Dance with the Devil Score 84	Devil Fire 2 Score 80
Identity
Studio	Quickspin	SlotMill	Play'n Go	Skywind Group	Tada Gaming
Released	1/25/2023	4/19/2021	6/7/2016	1/12/2022	4/19/2024
Math
RTP	94.19%	96.35%	96.54%	96.5%	97.16%
Volatility	High volatility	High volatility	Medium volatility	High volatility	High volatility
Max win	5,798×	10,000×	50,000×	—	14,000×
Format
Reels	5	5	5	6	5
Layout	5x3	5x3	5x3	6x5	5x3
Paylines	10	40	25	25	40
Min bet	0.1	0.1	0.25	0.25	0.1
Max bet	100	30	5	250	100
Features
Progressive	—	—	✓	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	—	✓	✓	✓
Scatter symbol	✓	—	✓	✓	✓
Multiplier	—	✓	✓	✓	—
Bonus game	—	✓	✓	—	—
Respins	—	✓	—	—	—

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

Comparing against

Book of Inferno

Quickspin

RTP

94.19%

Max win

5,798×

Score

+ Multiplier+ Bonus Game+ Respins− Free Spins− Scatter

Leprechaun Goes to Hell

+ Progressive+ Multiplier+ Bonus Game

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01What is the RTP of Book of Inferno?

Book of Inferno has a catalog RTP of 94.19%. It pairs that return figure with high volatility and a maximum win of x5798.00.

02How do expanding symbols work in Book of Inferno?

A selected symbol can expand across its reel and receive an extra pay-anywhere evaluation. Book symbols appearing with it can raise its upgrade level.

03How many Free Spins can the Book symbols award?

Landing 3, 4, or 5 Book symbols awards 10, 15, or 25 Free Spins respectively, and the same combinations can add spins during the feature.

04Does Book of Inferno have a Bonus Buy?

Yes. Quickspin states that the Bonus Buy costs 125 times the bet and provides immediate entry to the Free Spins feature where permitted.

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