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Book of Shadows Slot

Book of Shadows
Book of Shadows
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Updated: 14.10.2025
Reviewed by: Fabio Duarte

Are you in the mood for something spooky? Then there’s no doubt that you will love the Book of Shadows, released on 20/08/2020 by Nolimit City! This fantastic slot takes you on a journey to an occult-inspired setting, accompanied by fantastic music and cool graphics. But it’s not only the graphics that make this game stand out, oh no.

As you will see in our review, Book of Shadows can also provide a fun gameplay experience, and we will share all the details here: from RTP and Volatility to features and many more you need to know.

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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Book of Shadows slot

General information about Book of Shadows slot

Rating by Fabio Duarte:
8.6
User’s Rating: (based on  reviews):
7.3
Nolimit City
Write a review +25 SJ points
  • Release Date:
    20.08.2020
  • Volatility:
    High
  • RTP:
    96.0%
  • Multiplier:
    No
  • Max. win:
    30,338x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    Yes
  • Symbol Stacked:
    Yes
  • Jackpot Game:
    No
  • Slot lines:
    10
  • Slot reels:
    5
  • Layout:
    5-5
  • Stakes range (€/£/$):
    0.10 to 100
  • Slot Theme:
    Horror
  • Technology:
    JS, HTML5
More infoLess info

Live stats from Slotsjudge

Slotsjudge employs its dedicated simulator, which processes 10,000 rounds daily for each game and regularly updates its data to reflect the latest outcomes; the current figures for Book of Shadows are based on the most recent analysis. The game showcases an simulated RTP of 81.31%, compared to a declared RTP of 96.0%, indicating a significant difference that highlights the importance of understanding variance in real gameplay. With a hit frequency of 12.04%, wins occur roughly once every eight or nine spins, while the average win stands at 6.75 times the initial bet, reflecting moderate-sized payouts amid high volatility. The maximum recorded win reaches an impressive 1468x the stake, underscoring the potential for substantial jackpots, albeit with a lower probability. These figures suggest that Book of Shadows favors high-risk players seeking big rewards, supported by the game’s unpredictable nature and elevated volatility, which aligns with the overall design intended for experienced players.
  • Declared RTP:
    96.0%
  • Simulated RTP:
    81.0%
  • Bets sum:
    €10,000
  • Wins sum:
    €8,131
  • Bets:
    10,000
  • Average Win:
    €6.8
  • Max Win Observed:
    €1,468
  • Bonus Frequency:
    51
  • Hit Rate:
    12.0%
  • Wins:
    1,204
More infoLess info

Licensed and tested by

  • AGCO
  • Gambling Comission
  • ISO 27001
  • MGA
  • ONJN
  • Spel inspectionen

How to Play

The playing field set against the background of a night forest consists of 5 reels in 3 rows and provides 10 paylines, however, you can change the grid to 5x4 or 5x5 from the very beginning of the game using the Shadow Rows feature. Prize combinations here are created from 3-5 matching low-paying or 2-5 matching premium symbols. You can bet from €0,10 to €100 per spin on any platform or device to try your luck in this game. Betting these sums is possible only when using the standard 3-row option, and as soon as you use the Shadow Rows feature, your bet will be increased by 1.5 or 2 times.

So then, how do you play this spooky, scary slot? After you’ve selected your casino just:

  • Load the game
  • See what payouts the paytable offers
  • Check out how the bonus features work
  • Place your bets (using the standard 3-row option)
  • All set!

Book of Shadows RTP and Volatility

7.9 
Book of Shadows is a slot with extreme volatility and adjustable RTP.

Night forest with animal skulls and fog is hardly the safest place to walk. The dark design of this slot machine perfectly reflects its highly volatile nature. Here you have to deal with high risk and adjustable RTP: 96.01% and 94.09%. By the way, the Shadow Rows feature not only increases your bet but also the RTP. The theoretical return will increase as you open more rows: 96.01%, 96.07%, and 96.19%.

Meanwhile, the volatility in this slot, like in most of the Nonlimit City games, is extremely high, which is not the most appropriate option for causal or newbie gamblers.

Theme

9 

We like good horror-themed designs even if they're not about Halloween, and Book of Shadows gives us a good scare in the middle of a spooky forest. Here we encountered creepy cats, eyeballs, and sacrificed animals with a haunting tune playing in the background. Well, definitely a lot of players will love it and we also really like the cartoon/comic style of this game.

Let's see what's going on in the paytable of this bloody slot.

As always, there are regular and premium symbols. Spellbook, girl, cat, goat skull, butterfly, and eye are the most valuable, while bloody playing card suits are low-paying. Also, the game has a special scatter symbol - the spellbook - which is your key to triggering the free spins feature.

Theme
Book of Shadows slot - payouts

Mobile Compatibility

Mobile Compatibility
Take a trip to a frightening dark forest full of mysteries and big prizes wherever you are! Book Of Shadows was created using JS and HTML5 technologies, which makes it perfectly compatible with all modern mobile devices. Just go to your favorite casino powered by Nolimit City software, find this game in its games library, click the play button and have fun!

About Nolimit City

Nolimit City is a cutting-edge provider that creates exciting games for both PC and mobile. This company was founded in 2013, but this team of professionals has been successfully developing gambling products for now close to 10 years! A fast, reliable, and experienced team, cooperating with many reputable operators, allows Nolimit to produce excellent gambling products. They have a lot of games people adore, with some popular titles like Tomb of Akhenaten, Harlequin Carnival, Deadwood, Punk Toilet, and more!

Bonus Rounds & Free Spins

9 

Lucky Locks

There is a Lucky Locks bonus feature that is very similar to what Microgaming calls Hyperspins. This feature allows you to lock up to 4 reels after each spin and only spin the remaining unlocked reels. The cost of each spin directly depends on how many reels you have blocked, what symbols are on the blocked reels, and so on. For example, you can block 2 scatter symbols in the hope of getting the 3rd one, and this will of course be worth more than a spin that cannot generate such a potentially lucrative result.

Gamble

Here, as in most "Book of..." slots, you have the opportunity to gamble your win. You can gamble any win obtained in the base game or in the bonus round. The rules are the same as usual: the correct card suit, red or black. You can play this game 5 times in a row if you want, but the winning amount cannot exceed €500,000.
Book of Shadows slot - gamble feature

Bonus Wheel

With the Bonus Wheel feature you can win the free spins feature and your chances of winning increase with your bet size but you cannot bet more than 60x the bet. You will see the Wheel of Fortune with a rotating red segment and the size of this segment increases with the size of your bet. With the Bonus Wheel, you can get 10 free spins.
Book of Shadows slot - Wheel of bonus

Freespin With Golden Symbol

As soon as 3+ Scatters land on the playing field, the slot will instantly launch the free spins feature and how many free spins you get depends on the number of your rows:

3, 4, and 5 rows trigger 14, 12, and 10 free spins.

Before the start of a feature, as is usually the case in "Book of..." style slots, a special symbol is selected and you have the opportunity to shuffle the deck if you are not happy with the result. However, this can also make the selected symbol worse, and you must accept whatever comes up on the second try. The selected symbol expands to cover the entire reel when it lands and the good news is that the expanded reels don't have to be next to each other to secure a win. The bonus round will be re-triggered when you land no more than 3 Scatter symbols.

Book Of Shadows Demo Play

You don't have to risk real money to try your luck in Book Of Shadows. This gloomy slot machine comes with a demo mode that you can easily use by clicking the play demo button right on this page. In the lower right corner, you will see "Balance: €10000.00” - this is the amount of free virtual coins you can use for betting.

Max Win

8.8 
Win up to 30,338x the bet.
The maximum you can win in this slot is 30.338x the bet and this is an extremely high max win potential for a high-risk game. It's hard to achieve, but we're sure that on a good day you'll be able to get something like this. For example, during the free spins feature, 5 stacked Goth Girls will bring you 10,000x the bet. Not bad!

Overall Rating

8.6
Well, we rarely see a creative take on the hackneyed "Book of..." genre. NoLimit City decided to deviate a little from the path most providers take, and there's a lot more to see here than just an unusual design. This title is literally a dream come true for any Book slot fan who wants to have huge winning potential as well as the ability to change the number of reels. The feature that blocks the reels is smart but can be quite expensive if you decide to block the scatter symbols. The bonus round is the least innovative thing in this slot machine and this fact surprised us as this is where most providers usually take a turn.
Hits
Choose 3, 4 or 5 rows
Pay to lock up to 4 reels
Free Spins with Expanding symbol
Win up to 30,338x
Misses
Adjustable RTP
Too volatile for casual and newbie players

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Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews, Payments
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.

2162 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks

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Overall rating

Based on 3 reviews

7.33/10
Sloto Toto own avatar
Sloto Toto
6 lvl Superstar
6
Winning: €2
Multiplier: x8
I hear NoLimit, I expect complex gameplay!
Not a fan of mega innovative features. Here you’ll find locked elements, also part of the board is in shadow. Honestly, I had no clue how to unlock them but clicked accidentally and...UNLOCKED! Wonder if I was the only one in such situation.
Another part of the story is high variance. Down streaks can be really costly here. IMO it’s better to play with unlocked reels. Yeah, u pay for it, but chances of hittin FS are hier!
Not bad, but not for me
Review image 1095-0
15.07.2022
Primstan own avatar
Primstan
6 lvl Superstar
9
Winning: €12
Multiplier: x60
Classic book slot concept with a nice addition to graphics and animations that you might enjoy, especially big win animations. You can increase the amount of rows, improving your chances of landing a bonus, I believe, however it will cost you twice your bet, in order to have maximum amount of rows, which is 5. Free game feature just like in any regular book game, aside from the fact that you can actually reload the symbol ones, better don't do it. Potential is as high as could be, which is nice.
Review image 753-0
29.05.2022
slotshunter own avatar
slotshunter
5 lvl Spinner
7
Winning: €10
Book of Shadows is a slot where you're able to control more things than usual. I mean this possibility to lock up reels. I can't say that appeals to me much, but it is quite interesting. I liked gamble feature (actually there are 2 types of gamble games) more, but wasn't lucky enough there. Scatters land quite often, but my wins in base game were much better.To sum it up, Book attracts by its graphic and well thought-out bonuses.
Review image 728-0
28.05.2022
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