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Book of Darkness

Review, Demo Play, Payout, Free Spins & Bonuses

Book of Darkness is an online slot developed by BetSoft. It’s a medium volatility slot with an RTP of 96.48% and a top win of x1,056. Feature...s include free spins, The Clash for Power and Shadowform.

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  • The Clash for Power
  • Shadowform
  • Free spins
  • Extremely tense
  • Only 10 paylines
  • Low maximum bet


When you launch Book of Darkness, get ready for a clash between good and evil. This slot’s most appealing feature is undoubtedly The Clash for Power, a bonus game which pitches a Huntress and a Dark Wizard against one another in a titanic clash! For the player, it's win win, as both promise prizes including free spins.

Book of Darkness is a 5x3 reel slot that’s anything but ordinary. Symbols have a distinctly gothic design and include a book of spells and the Dark Wizard and Huntress, which top the paytable. Mid range symbols are rubies, an enchanted ring, a potion and a dagger. The letters A, K and Q have a slightly lower value.

Book of Darkness is distinguished by its many colourful bonus features. The Clash for Power is certainly the best, but there are free spins available through more conventional means too. Scatter symbols award up to 5 spins, and a payout too!

We highly recommend checking Book of Darkness out for free, along with plenty of other Betsoft slots, so you can sample its many features!

Theme, Graphics and Sounds

Book of Darkness’ ghastly interior is at once intriguing. It’s a cavernous hall, draped in mysterious green light and encroaching ruin. An echoing voice tempts the player to delve deeper, asking “can you find the book of darkness?” and suspenseful music plays in the background. This slot oozes tension.

The reels spin with a soft thrum that cuts across the music, and symbols enlarge and glow when they form winning combinations. Everything on Book of Darkness has a simmering quality, as though the slot might boil over at any point, or something terrifying might emerge from the dark.

A top bet of 10 isn’t the highest we’ve encountered and probably won’t satisfy high rollers, but that’s only a small complaint. Book of Darkness left us with many more questions than answers, and we would have loved to know more about its back story and ominous setting!

Book of Darkness

Book of Darkness RTP & Volatility

Book of Darkness’ medium volatility rating will be welcomed by many, as it promises more consistent (if slightly smaller) wins. The slot has an RTP of 96.48% and the maximum win is x1,056.

How to play Book of Darkness

Book of Darkness encourages exploration, but we recommend reading this guide before you plunge into the caves!

1. Book of Darkness has a well put together interface, so begin by pressing “i” and opening up the game’s manual.

2. The manual will tell you everything you need to know about the paytable, bonus features and game rules.

3. Use sound controls (the speaker button right next to “i”) to adjust the volume of the music and effects.

4. The - and + arrows in the middle of the screen allow you to cycle through bet sizes and select your preferred wager.

5. Paylines are fixed at just 10, but autoplay is available by pressing the small button next to spin. You can choose up to 100 spins, but there are no loss/win limits.

6. Set your budget, and then click spin when you’re ready to play!

Bet & Win Sizes

Book of Darkness has a minimum bet size of 0.10, and this can be increased up to 10. The top single line win (for x5 scatters) is x200.

Let’s take a look at the other winning combinations available.

Five scatters = x200

Five Dark Wizards = x2.5

Five Huntresses = x2.5

Five rubies = x1.50

Five rings = x1.50

Five potions = x0.80

Five dagger = x0.80

Five As = x0.50

Five Ks = x0.50

Five Qs = x0.50

Paylines remain fixed at 10, and Book of Darkness’ maximum payout is x1,056.

Book of Darkness bonus features

Few online slots put as much effort into their bonus features as Book of Darkness. Consequently, they’re some of the best in the business, and this guide should help you enjoy them.

Free spins

There’s more than one way to win free spins on Book of Darkness, but by far the most straightforward is to simply land scatter symbols. 3 scatters awards 10 free rounds, 4 gives you 15, and 5 scatters triggers a generous 20 spins.

The Clash for Power

This intriguing bonus game launches if you manage to land some combination of the Dark Wizard, the spell book and the Huntress in a horizontal line across the reels. Free spins will trigger, and you’ll also have the chance to back a side: Dark Wizard or Huntress. They’ll battle during the free spins, and if you picked the winner…


If your chosen character triumphs in the Clash for Power, you’ll be awarded another 10 free spins! If Huntress was the victor, those spins come with a x5 multiplier. If the Dark Wizard prevailed, the number of expanding symbols is increased to 5.


Online slots don’t come much more intense than Book of Darkness. It establishes its fraught atmosphere from the off and doesn’t let the tension drop even for a moment. It’s quite an achievement, and BetSoft should be congratulated on producing a genuinely filmic game.

All that tension would be useless if the slot didn’t build towards any real crescendo. That’s where the bonuses come in, and especially The Clash for Power. Free spins are something to aim for, but The Clash for Power is the beating heart of this slot. Picking a hero and then watching them fight is truly compelling, especially when there are yet more free spins on the line!

We would have loved a little more resolution or explanation of the world, but our lingering curiosity is testament to how well Book of Darkness is designed!

If you’re searching Slots Temple for other similarly gothic slots, we think the Immortal Romance slot fits the bill perfectly!

Disclaimer: Book of Darkness trademark / license is owned by Betsoft. This site is not endorsed by Betsoft.

Slot Data
Slot Name: Book of Darkness
Software: Betsoft
RTP: 96.48%
Paylines: 10
Reels: 5
Min Bet (all lines covered): £0.10 (GBP)
Max Bet: £10 (GBP)
Top Win: 1056
Features: Multiplier, Expanding Wilds, 5 Reels
UK Available in UK? No. :maker does not have a UKGC license and cannot offer their games at UK licensed casinos.


What is the RTP of Book of Darkness?

Book of Darkness has an RTP of 96.48%.

Are there free spins on Book of Darkness?

Free spins are awarded for 3+ scatters or winning the Shadowform bonus game.

How many paylines does Book of Darkness have?

Book of Darkness fixes its paylines at 10.

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