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Book of Darkness

RTP 96.48%
Play BetSoft Slots
Reels 5
Paylines 10
Min bet size 0.10
Max bet size 10
RTP 96.5
Wild symbols Yes
Free spins Yes
Bonus Yes
Jackpot No

Top Casinos: United States

Book of Darkness Slot Review

Released October 2020

The Book of Darkness slot is produced by BetSoft. BetSoft are one of the smaller slot development companies on the market at the moment and have recently started offering their own casino platform. The company was founded in 2006, entering the slots market 4 years later. Betsoft do publish the Return to Player (RTP)/House Edge information for their slots games within the game help files. As such we know that the house edge for Book of Darkness is 3.52%.

Book of Darkness has 5 reels and each reel is 3 symbols high. The game uses 10 standard paylines, playing from left to right.


This slot has a fantasy theme. You are on a quest to find the Book of Darkness, something you are made aware of as soon as the slot starts up and a deep voice asks if you are ready to find it. This is dark fantasy so there is an undercurrent of peril throughout and the colour scheme reflects this too.

Special Symbols

Wild/Scatter – The “Book of Darkness” symbol is Wild, meaning it will substitute for all symbols other than the “Huntress” and the “Dark Wizard” symbols. It also acts as a Scatter, which means it will pay out regardless of paylines and if you land 3 or more of them anywhere on the reels you will trigger the Free Spins feature.

Huntress and Dark Wizard – This symbols are needed in order to trigger the “Clash for Power” and the subsequent “Shadowform” features. To trigger “Clash for Power” you need to land a “Huntress”, a “Book of Darkness” and a “Dark Wizard” symbol in that order in a straight line on the reels, or the position of the “Huntress” and the “Dark Wizard” can reverse.

Bonus Features

Free Spins – 3, 4 or 5 “Book of Darkness” symbols will award 10, 15 or 20 Free Spins respectively. During the feature a symbol (not the “Book of Darkness”) will be chosen at random and anytime you land one on 3 or more reels in a single spin.

Clash for Power – If you trigger this Bonus you need to choose either the “Huntress” or the “Dark Wizard” to back in the Clash for Power. You are awarded Free Spins and there is no set amount as the feature plays out until one of the heroes wins the battle. When hero symbols land they will fill their respective meter, they will also expand to fill the reel they land on. Win the battle and you will move onto the “Shadowform” feature, lose and the feature ends. No Wilds will be available during the feature and it cannot retrigger.

Shadowform Spins – You are given 10 Free Spins. If the “Dark Wizard” won the battle he will choose 5 random symbols to expand and fill the reels on every spin. If the “Huntress” won the battle she will award a 5x multiplier to any wins involving “Huntress”, “Dark Wizard”, “Crystal” or “Ring” symbols. Wilds are not available during the feature.


This slot looks good and has 3 different Free Spins features. It also offers good value for money. There is nothing here you won’t have seen before, although the battle feature is fairly unique. The star of the show is the low house edge.

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