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Book of Shadows Slot — Online Slot Review & Free Demo

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Book of Shadows Slot Review: RTP, Bonuses & Features

Take on the horrors of Book of Shadows, NoLimit City’s most successful “Book” themed slot game and one of the studio’s most popular games. Packed with a gamble feature with a double-or-nothing option, a wheel bonus, free spins, scatters, and multipliers, this slot will have you on the edge of your seat. Will luck smile your way?!

Key Takeaways

  • The game’s unique “lock” feature allows you to pay a percentage of your bet to lock a reel after one round ends. Would you like to keep a scatter or wild after they show up on the reels? You can! For a price, of course.
  • Decide how many rows and paylines you like to play with. More rows mean more paylines, but also translate into higher base stakes.
  • Golden symbols during free spins can convert all symbols into one, giving away payouts worth thousands of times the amount of your stake.

Book of Shadows Gameplay: What to Expect?

Book of Shadows lets you shape your own experience. You are allowed to choose whether to play with 3, 4 or 5 rows. The game’s default setup is 5x3, but you can click on the rows covered by shadows to unlock them. This will increase your bet accordingly – you should always look at the “Total Cost” prize to see how much money your bet will actually cost. It’s located atop the “Bet” indicator.

This game’s high volatility stems from the fact that the title’s high-paying rounds, which are its free spins bonus rounds, are very unlikely to activate. They come once ever 147 spins. In the meantime, you can expect frequent wins of low value (generally lower than your bet, hence the game’s volatility), as you can win with two-symbol combinations of high-value symbols on a single payline.

book of shadows slot
Book of Shadows gives you the versatility to choose how you want to play

Just as it occurs in most online slots, 10, J, Q, K, and A symbols are the low-paying symbols of the game, whilst the rest act as the high-value symbols of the slot. During free spins, one random symbol will turn gold, and it’ll cover an entire reel whenever it shows up on a spin.

Expect the highest payouts during free spins and dare to take risks with the gamble feature to double your winnings or obtain free spins without collecting scatters!

Book of Shadows Pros

  • Lock feature allows you to keep reels in place
  • Betting range ideal for low rollers and high roller
  • Massive potential payout of more than 30,000x

Book of Shadows Cons

  • The game has an average return rate

What Makes Book of Shadows Unique?

Book of Shadow gives you the option to select the number of reels with which you want to play and comes with two different gamble features. That, combined with the golden symbols during free spins, which make the game feel very profitable, makes this a fantastic high-volatility slot game with two features that you rarely see on any casino slot game.

Bonus Features, Bonus Gameplay & Special Features

This game has a couple of crazy mechanics, but it’s not one of those online slots that is difficult to get a hang of. You’ll pick it up quickly, just as it occurs with most NoLimit City games. Let’s take a look at its main features and how they work:

  • Lock Reels: At any point after a spin, you’ll be allowed to pay a determined amount of money to lock one of the reels before you play the next spin. This can be done with any reel, no matter which symbols are in it. The cost of locking a reel is determined by the value of its current symbols, and it’s affected by the value of symbols in other locked reels!
  • Gamble Feature: Whenever you win, you can select the option to cash out or gamble your winnings. You can gamble by choosing a card (you have a 50/50 chance of winning: pick red or black and wait for the reveal) and double your winnings, or spin the bonus wheel to earn free spins.
book of shadows bonus gamble
The bigger your win is, the larger the red "win" area will be during the wheel gamble round

The game comes with a max potential win of30,338x the amount of your bet, which can be achieved during free spins, when the highest-paying symbol of the game is selected as the golden symbol and covers all of the reels. This needs to occur multiple times for the max payout to be achieved.

Free Spins Round

Free spins are activated when you collect at least three book scatter symbols at any point during the game. You’ll always be granted 10 free spins. A book will show up on your screen, and it’ll tell you how many spins you’ve earned.

You’ll also be presented with one random symbol that’ll turn gold during the spins. Golden symbols will only cover an entire reel when you collect three low-paying golden symbols or two high-paying golden symbols. One golden symbol on their own won’t turn into anything – there needs to be a winning combination for this to occur.

book of shadows bonus
Symbols cover the entire reels during bonus free spins rounds!

During free spins, if you collect three additional book scatters, you’ll get 10 additional free spins. This feature can be retriggered as many times as you like!

RTP, Hitting Frequency & Volatility

Book of Shadows doesn’t have a crazy high return rate, but it does feature a massive variance that makes it a favorite among casino players of all types. These are its technical mechanics:

  • RTP: 96.01%
  • Hit Frequency: 33.18%
  • Volatility: Very High

Free Demo of Book of Shadows 

Test the Book of Shadows slot for free before you spend real money playing it and get a hang of how its bonus features work to get a better idea of when to activate them. While playing for free, we recommend taking more risks with the gamble option.

Available Bonuses to Play Book of Shadows for Real Money?

As a 96% RTP slot game, this title can be played with casino bonuses in sites that have NoLimit City games. These are some of our favorite bonuses offered by casinos that have Book of Shadows in their game catalogs:

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Best Book of Shadows Alternatives

Book of Shadows is an extremely popular casino game that stands out as one of NoLimit City’s most popular titles. Let’s take a look at a couple of alternatives that you’ll like to try out if you enjoy this game:


Mental is another popular NoLimit City slot game that features three of the company’s original mechanics: xWays, xSplit, and xNudge. If you love the irreverent concept of NoLimit City slot games, then you need to try Mental and its crazy setup. You’ll really feel as if you were in an asylum with such a unique reel setup!

Book of Dead

The world’s most popular “Book” game is available to be played on trial mode. Play’N GO’s iconic slot game remains relevant a decade after its release, with symbols that act like wilds and scattersat the same time, just like it happens on Book of Shadows. Explore the Egyptian catacombs with Rich Wilde and uncover the hidden riches that the Book of Dead has in store for you.


8.5 / 10


Book of Shadows Verdict

Book of Shadows free spin rounds are enough for us to recommend this game to our readers. Golden symbols that cover the entire reels and unlimited free spin retriggers are a very rare sight in modern slot games, and a max potential payout of 30,338x the amount of your bet will have you chasing a massive jackpot. Choose how you want to play and spin the shadowy reels in this NoLimit City slot game!

Frequently asked questions

There are in-game Book of Shadow free spins and casino bonuses that you can use to play the game for free.

Book of Shadows has an average RTP of 96.01%, albeit there’s a low-RTP version of the game with a return rate of 94.09%

You can play Book of Shadows for free here, or you can use one of our recommended bonuses to play for free and win real money in licensed online casinos.

Last updated  May 21, 2024
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About the author



Chief Content Writer


Chief Content Writer

Marco is an experienced casino writer with more than half a decade of gambling-related work on his back. He took a keen interest in gambling as a young adult and started writing expert content for the casino and sports betting niche in 2015. Now, he specializes in online slots, table games, and sports betting – producing well-researched content on all fronts of the iGaming world.

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