Book of Inferno Slot Review
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Book of Inferno Demo
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3,000+
Up to 24 hours-
United Kingdom (UKGC)
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Book of Inferno Slot RTP, Details & Wager Limits
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
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 |
|---|---|
 9 | 3, 4 or 5 = 0.5, 2 or 8 x stake |
 10 | 3, 4 or 5 = 0.5, 2 or 8 x stake |
 J | 3, 4 or 5 = 0.5, 2 or 8 x stake |
 Q | 3, 4 or 5 = 0.5, 3 or 12 x stake |
 K | 3, 4 or 5 = 0.5, 3 or 12 x stake |
 A | 3, 4 or 5 = 0.5, 3 or 12 x stake |
 Commander of Hell | 2, 3, 4 or 5 = 0.5, 3, 10 or 75 x stake |
 Lady of Hell | 2, 3, 4 or 5 = 0.5, 3, 10 or 75 x stake |
 Lord of Hell | 2, 3, 4 or 5 = 1, 3, 30 or 160 x stake |
 Anna the Demon Huntress | 2, 3, 4 or 5 = 1, 10, 100 or 500 x stake |
 Book | 3+ triggers Free Spins feature + paya up to 200 x stake |
Book of Inferno Mobile
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
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.
Book of Inferno Review Summary – one of the better ‘book of’ slots
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.
Book of Inferno FAQs
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.
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.
Yes. Land 3 or more Book symbols to trigger the $1 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.
Yes, the $1 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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Martin has worked for leading companies in the gaming industry and has a strong online casino background. He possesses extensive knowledge of casino operations, including bonuses, payment methods, and cashout times. His expertise extends to playing and reviewing slot games, making him a valuable resource.
