Book of Inferno Slot Review

4.1/5
Based on our expert’s review. Reviewed by
Quickspin Slot Reviews
Review by
Martin Backhouse
Updated: 07/02/2023
Review by
Martin Backhouse
Updated: 07/02/2023

Join Anna the Explorer as you battle with a trio of demons in the Book of Inferno slot from Quickspin. This highly volatile game is a classic 10-line Book game with max wins of 5,846.5 x your total stake up for grabs. With Expanding Pay Anywhere symbols and a Free Spins feature that can be retriggered, there’s a lot going on here. Keep an eye out for Marked symbols as these could lead to potentially big wins. Read on to discover everything on offer in our detailed and unbiased Book of Inferno review below.

Max Win
5,846.5 x bet
Play
T&Cs Apply

18+ begambleaware.org, T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. #ad

Provider
Quickspin
Type of Slot
Video Slot
Theme
Fantasy
Reels
5
Paylines
10
Stakes Range
10p to £100
Bonus Features
Free Spins/Multiplier
10-Unlimited/NA
Max Win
5,846.5 x
RTP
96.15%
Volatility
Very High (5/5)

Book of Inferno Demo

18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply 18+ begambleaware.org, T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. #ad
18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply 18+ begambleaware.org, T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. #ad

Recommended Casino

Best casinos to play Book of Inferno slot with real money

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18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Max redeemable from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required. Max Free Spins winnings: £100. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45 times. Free Spins expire after 3 days. Some games may not be played with a bonus. Games may contribute differently when wagering a bonus. Play Responsibly! www.begambleaware.org. #ad

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New Players Only 18+. Minimum Deposit: £10. Maximum Offer: 300% Bonus up to £40 & 50 Spins on Book Of Dead. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 24hrs. Promo Code: 300. Withdrawal & full T&Cs apply. Valid until 31/12/2024. www.begambleaware.org #ad

100% Bonus up to £100 + 20 Bonus Spins
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18+. New customers. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” at 10p per spin and 100% Deposit Bonus up to £100 on first deposit (payment method and play restrictions apply). Min. deposit £10. 30x wagering for Bonus Spins and Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Please gamble responsibly • www.begambleaware.org #ad

100 Spins + 200% Bonus Promo Code: SPINIT
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First-time depositors only (18+ country restrictions apply). Min deposit: £10. Max offer: £20 Games Bonus & 100 Free Spins (on a game of our choice). Promo code: SPINIT. Any Games Bonus winnings, if applicable, must be wagered 60x before withdrawal. Any Free Spins winnings, if applicable, will be credited as bonus funds and capped at £10. FS are valid for 7 days and any winnings must be wagered 40x before withdrawal. Games Bonus win cap: £100 + original bonus amount. Wagering contribution varies by game. We reserve the right to deny bonuses based on abusive bonus activity across sites operated by the Company. Deposit balance is available for withdrawal at any time (UK only). General withdrawal restrictions apply. Valid until 31.12.2023. BeGambleAware.org #ad

Book of Inferno Slot RTP, Details & Wager Limits

Reels/Paylines: 5 reels + 10 paylines

Stakes Range: 10p to £100 per spin

RTP: 96.15%

Max Win: 5,846.5 x bet per spin

The Book of Inferno slot is played on 5 reels, 3 rows and has 10 fixed paylines. Wins are formed by landing 3 or more symbols (2 or more in some cases) from left to right. Pay anywhere line wins pay without the need to be connected.

Stakes range from just 10p up to £100 per spin, which is typical of a lot of Quickspin slot games and caters to all pockets. Simply use the + and – buttons below the reels or the coins icon where you can choose from 16 predefined bet values.

The Book of Inferno RTP is 96.15%, which is above average for UK online slots. 64.69% is reserved for the base game, with 31.45% for the Free Spins feature. But please note that volatility here is very high and rated as 5 out of 5 by the provider.

The maximum win is 5,846.5 x your total stake per spin. The Free Spins feature will be your best chance of landing this due to the possible retriggers. Your chances of landing the top prize are 1 in 100 million spins on average.

With the max win being very rare to achieve, here’s a useful table showing the chances of landing other types of wins in the game:

Win Odds
Big Win (15x) 1 in 137 spins
Super Win (40x) 1 in 314 spins
Mega Win (70x) 1 in 419 spins
Epic Win (100x) 1 in 572 spins

Quickspin released its Scatter Monsters slot just before this one, and the odds of landing certain wins are a lot better here in comparison.

Theme – channel your inner demon huntress

Theme: Fantasy

High Value Symbol: Anna the Demon Huntress

Compatibility: Mobile, Tablet, Desktop

book-of-inferno-slot-base-game

The fantasy world leads you to a hellish underworld in the Book of Inferno slot. The reels are set in front of a devilish firepit, with skulls on either side of the reels to give you the overall feeling that you may be battling to the death. The visuals are fantastic and the reel animations are great too.

The soundtrack is suspenseful, and it does sound like you’re about to go into battle. It’s the kind of audio you hear when you’re about to head into trouble at a certain part of a film. The eerie sounds make for some adrenaline-pumping gameplay. Feel free to increase the volume to make things a little scarier.

Land the Free Spins feature and the audio speeds up and it all turns quite heavy metal-like. It’s all very fast-paced too, so keep your eyes focused on the reels to understand what’s going on.

On the reels, the A-9 Royals make up the lower-paying symbols. The higher-paying ones include the Commander of Hell, the Lady of Hell, the Lord of Hell, and Anna. Anna the Demon Huntress pays the most, awarding 1, 10, 100 or 500 x your stake for 2, 3, 4 or 5 in combination.

The Book symbol acts as the Wild and the Scatter in the game. It substitutes for all symbols and can pay up to 500 x your stake. 3 or more in view will also trigger the Free Spins feature.

Symbol Payouts/Info
book-of-inferno-slot-9-symbol9 3, 4 or 5 = 0.5, 2 or 8 x stake
book-of-inferno-slot-10-symbol10 3, 4 or 5 = 0.5, 2 or 8 x stake
book-of-inferno-slot-j-symbolJ 3, 4 or 5 = 0.5, 2 or 8 x stake
book-of-inferno-slot-q-symbolQ 3, 4 or 5 = 0.5, 3 or 12 x stake
book-of-inferno-slot-k-symbolK 3, 4 or 5 = 0.5, 3 or 12 x stake
book-of-inferno-slot-a-symbolA 3, 4 or 5 = 0.5, 3 or 12 x stake
book-of-inferno-slot-commander-of-hell-symbolCommander of Hell 2, 3, 4 or 5 = 0.5, 3, 10 or 75 x stake
book-of-inferno-slot-lady-of-hell-symbolLady of Hell 2, 3, 4 or 5 = 0.5, 3, 10 or 75 x stake
book-of-inferno-slot-lord-of-hell-symbolLord of Hell 2, 3, 4 or 5 = 1, 3, 30 or 160 x stake
book-of-inferno-slot-anna-the-demon-huntress-symbolAnna the Demon Huntress 2, 3, 4 or 5 = 1, 10, 100 or 500 x stake
book-of-inferno-slot-book-symbolBook 3+ triggers Free Spins feature + paya up to 200 x stake

Book of Inferno Mobile

book-of-inferno-mobile-slot

The Book of Inferno slot game has been optimised to play on mobiles, tablets, laptops and PCs. Best played in a 16:9 ratio window, it’s compatible with iOS and Android devices. The 5×3 setup is ideal for smaller screens.

Book of Inferno Bonus Features

There are 3 bonus features to enjoy. From marked symbols to a fun Free Spins feature, there’s enough going on to keep things exciting. Let’s run you through how the bonus features work, starting with the marked symbols.

Marked Symbols

If a marked symbol lands on the reels, if there are enough of them to pay, it will expand to cover the entire reel and pay anywhere on a line. it doesn’t need to be in sequence from left to right either for an extra win consideration.

If a Book symbol lands together with a marked symbol, that marked symbol will be upgraded 1 step, which could lead to more marked symbols and expansions. But if the marked symbol is already upgraded past the highest symbol, the lowest symbol will then be converted into the highest.

Free Spins feature

book-of-inferno-slot-free-spins-feature

3 or more Book symbols anywhere in view in the base game of the Book of Inferno slot game will trigger this bonus feature. Here’s how many free spins you could get:

Books Free Spins Awarded
3 10
4 15
5 25

Before the bonus feature begins, a random symbol will be selected as marked. It then plays in the same way as the base game, and Books award the same amount of additional free spins as above when retriggered.

You can buy the Free Spins feature for 125 x your stake if you’re outside the UK. 3, 4 or 5 Book symbols will land randomly.

Book of Inferno Review Summary – one of the better ‘book of’ slots

Ratings
Theme & Symbols








Sounds & Music








Bonus Features








RTP (96.15%)








Max Win (5,846.5x)








Originality








As far as ‘book of’ games go, the Book of Inferno slot is a refreshing change to some of the standard ones previously released and similar to Book of Dead. The theme is great, the visuals are fantastic and the soundtrack fits perfectly.

The marked symbols are a great addition to the normal gameplay. You can’t knock the max win potential of 5,798.5 x your stake either along with an above-average RTP. But just make sure you tread carefully as volatility is as high as it can be.

Don’t dismiss this as just another ‘book of’ slot until you’ve tried it because it’s not. Feel free to give our demo a try and see for yourself. Hats off to Quickspin, they’ve created a slot that has gone a step further than Play’n GO by tweaking this a bit more than usual to deliver a really fun and suspenseful game.

For more ‘book of’ action that steers away from the standard ones, check out Nolimit City’s Book of Shadows. This highly volatile horror-themed slot comes with some great bonus features and 30,338 x max wins.

Pros
  • 5,856.5 x max wins
  • Unlimited free spins
  • Expanding symbols for bigger wins
Cons
  • Highly volatile

Book of Inferno FAQs

What is the Book of Inferno RTP?

The Book of Inferno RTP is 96.15%, which is above the industry average for an online slot. In terms of volatility, it’s in the very high range and rated as 5 out of 5 by the provider.

What is the Book of Inferno max win?

The maximum win is 5,846.5 x your stake. This falls somewhere in the middle compared to a lot of other slots around, but there are a lot more with higher max win potential in all honesty. 1 in every 100 million spins, on average, will result in a max win.

Are there any Book of Inferno free spins?

Yes. Land 3 or more Book symbols to trigger the Free Spins feature with at least 10 free spins. You can retrigger the feature in the bonus round for even more free spins too. We explain how the bonus feature works in detail in our review.

Is there a Book of Inferno demo?

Yes, the Book of Inferno demo is available here at Online-Slot.co.uk. Battle the trio of demons and outsmart the twisted logic of the Inferno on mobiles, laptops, PCs and/or tablets.

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