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Book of Cthulhu

KA Gaming
Book of Cthulhu

Book of Cthulhu is a horror/fantasy theme slot by KA Gaming.

It features a 5x3 reel configuration and 20 paylines.

The game offers Wilds, Scatters, and a Free Spins round with a special expanding symbol.

Specifications

Reel Config

5x3

Paylines

20 Lines

RTP

-

Volatility

-

Max Win

-

Bonus Buy

-

Demo Play

Book of Cthulhu by KA Gaming

FeatureMatch™

A focus on symbol changes and bonus modes

Two roles are especially well represented here: symbol changes and bonus modes. Part of the symbol-combination role comes from wild mechanics. Bonus access is one of the roles covered by scatter mechanics here.

Feature richness

This feature set is modest in size, adding a handful of special mechanics to the familiar spin-and-win format.

Feature mechanics
4
Feature families
4

Feature profile

Select a role to explore its contributing features.

Number of features contributing to each role. One feature can contribute to several roles.

How we analyze this game’s features

Each bar counts the features that contribute to a functional role. One feature can contribute to more than one role. Bar lengths are scaled to the largest count within this game; compare the numbers when looking across games.

These counts describe feature composition. They are not win probabilities, payout contributions, or quality ratings.

All features 4

Standard WildStandard ScatterStandard Free SpinsSpecial Expanding Symbol

Highlight Features

Special Expanding Symbol

The Special Expanding Symbol is one of the most iconic and popular mechanisms in online slot history, a core free spins feature primarily found in 'Book of...' series games. The essence of this feature is that one regular symbol, randomly selected at the start of the free spins, gains a special power. This symbol, as long as it appears on the reels in the required number to form a win, will expand to cover its entire reel and create massive wins regardless of its position.

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About Previews

Each SlotWise Preview examines a game’s rules, specifications, and special features. We identify individual mechanics and map them to standardized feature categories, then use FeatureMatch™ to describe the game’s mechanical character. Alongside free demo access, this gives you a consistent starting point for understanding and comparing games. Where a 300SPINS™ review is available, it adds observations and results from a recorded play session.

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