Book of Shadows Slot


Technical Table Information

RTP (return to player)96.01-96.19%
Casino Software provider:Nolimit City
Release date20.08.2020
Maximum Multiplierx30,338
Volatility: (low, medium, high) High
Winning Lines:10-20
Min bet: 0.1-0.2
Max bet: 100-200
Provably Fair (yes/no)No
Jackpot slot (yes/no): No
Technology (for example HTML5)HTML5 
Theme slot (adventure, Egyptian, Aztec, animals, Christmas, etc…): Horror
Best Bitcoin casino to play with Bonus:LEAVE BLANK

Description of the Slot 

Nolimit City is known for using innovation in its slots, and the same can be said about Book of Shadows. While ‘Book of’ slots are pretty standard among game providers, credit goes to Nolimit City for infusing Book of Shadows with exciting segments. There are changing pay lines, RTP, and betting limits in the slot. Depending on active reels, the bonus features are also varying. Book of Shadows starts as a 5×3 grid layout machine that you can increase to a 5×4 or 5×5 grid. What’s more, at its best, you can land a massive win of 30,338x of your stake. So without further ado, let us explore the Book of Shadows in detail. 

Design and Audio 

Book of Shadows is arguably one of the creepiest slots out there. The reels are found inside dark and gloomy woods with no trace of sunlight. There are cats, ram skulls, a mysterious book of shadows as symbols to add to the nightmarish feel. The chilling background score can give anyone goosebumps. The distant howling of wolves and hooting owls do not let you forget you are in a dangerous place. For a slot in the horror genre, Book of Shadows is too spooky to be missed out on. 


From a practical point of view, Book of Shadows means business, and this is quite clear from its set of features.

Shadow Reels

The Shadow Reels help you select the number of active rows and pay lines you want to start playing. You can play the slot as either a 5×3, 5×4, or 5×5 gaming engine, with 10, 15, or 20 pay lines active, respectively. The bonus offers vary based on active pay lines. The betting cost also increases with increased rows. 

Lucky Locks Feature 

After each spin in the base game, you get the option to lock up to 4 reels. A price has to be paid for locking the number of reels. The more reels you lock, the higher you will have to pay. You cannot lock reels if there is no chance of forming a winning combination with the current set of symbols. The ideal way to use the Lucky Locks feature is to lock 2 reels with scatter symbols. This will make it easier to land another scatter and trigger the Free Spins feature. 

Free Spins Feature

Interestingly, the Book of Shadows symbol in this slot acts as both wilds and scatter symbols. So you can trigger the Free Spins feature by landing three or more Book of Shadows symbols. When 3 rows are active, you get 14 free spins; 4 rows give 12 free spins, and 5 rows award 10 free spins. In addition, a random symbol during this round is elevated to the status of Golden Symbol. A Golden Symbol expands to fill an entire reel or reels. Also, landing 3 or more Book of Shadows symbols during the Free Spins round retriggers the feature. 

Gamble 50/50

After hitting a winning combination, Book of Shadows offers the Gamble 50/50 option. If you use this feature, you will be given a chance to double your wins or lose out on it. All you have to do is pick a card between Red or Black, and if you choose the right one, your winning amount will be doubled, else forfeited. Unfortunately, the Gamble 50/50 feature may not be available in all jurisdictions. 

Gamble Wheel of Bonus 

Another option to gamble your wins is the Gamble Wheel of Bonus feature. If the wheel stops at the right outcome, you will be directly taken to the Free Spins round with 10 free spins at least. The Gamble Wheel of Bonus might not be available in all jurisdictions. 

Nolimit Bonus Feature 

To move directly to the Free Spins round, you can buy the Nolimit Bonus feature in Book of Shadows. To trigger the feature, pay 60x, 90x, or 120x of your bet with 3, 4, or 5 active rows, respectively.  


Book of Shadows has A to 10 low-paying symbols where the maximum you can win is 25x of your stake for landing 5-of-a-kind. The high-paying symbols constitute eye, butterfly, ram skull, cat, and a mysterious woman. The highest-paying symbol among them is the mysterious woman. Landing 5 mysterious woman symbols in a spin pays 500x of your stake. The Book of Shadows scatter+wild symbol also has the same payout as the mysterious woman.  


Book of Shadows makes stark use of the horror genre. It is full of spooky elements, leaving tension between the reels. But, in the words of Nolimit City, the Book of Shadows unfolds like a book of enchantment with the power to alternate the reality of the ‘reel’ world. If you are in luck, the alteration increases your bankroll. 


For a slot with such luxurious payouts, it was only expected that Book of Shadows would be a highly volatile slot. High volatility implies landing a high-paying winning combination is likely to take a long while, but the rewards are sky-high when it happens. 


About the Game Provider

Nolimit City was founded in 2014 and since then has produced over 50 slots available in different online casinos. With the implementation of HTML5 technology, their slots are well-optimized for mobile phones and tablets. Nolimit City has offices in Sweden, Malta, and India, which defines its international marketing approach. As they are fully independent as a game provider, we find unique innovations and features in their slots that bring something fresh to the table. 

Other Slots by Nolimit City 

  • San Quentin
  • Coins of Fortune 
  • Deadwood  

Final Summary

Book of Shadows is an exciting slot with a unique set of features. Because of the high customizations available in the game, the slot would bring something fresh for experienced players. Furthermore, you get additional advantages if you play Book of Shadows in Bitcoin Casinos or with operators supporting cryptocurrency. For example, unfinished game rounds will automatically reset after 24 hours, and payouts are made for accumulated wins during the interval when playing with cryptocurrency. Also, even with changing RTPs for different rows, their average remains above the standard 96%. All in all, Book of Shadows is worth giving a try. 


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