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Cthulhu Slot Machine – Free Play & Review

Cthulhu is one of the recent slot machines available at Yggdrasil casinos, and it was designed by Gluck Games. The theme for it comes from the works of H. P. Lovecraft, where Cthulhu was the name of an octopus-like entity, but with dragon claws and wings thrown in as well. It was first mentioned in The Call of Cthulhu, a short story.

Diamonds and the card suit icons, these will be your five low-paying symbols in Cthulhu. I found the premium symbols to be better, showing us images of sailors, knights, wizards, rogues, and bards. Additional feature symbols are also part of the design.


Cthulhu was created by Gluck Games for Yggdrasil Gaming’s platform, and it’s not the first time that the two have collaborated. Other great examples would be slots like Serendipity and Dead Man’s Fingers, both of them appreciated by players.

How To Play It

It’s a slot machine with a smaller betting range, easily accessible to every type of player. $0.20 will constitute the minimum wager that can be selected, while $20 will be the highest one.

There are 5×3 reels used, and 10 active lines on which the winning combinations can form. 3 to 5 symbols, aligned left to right on active lines, will get you those wins.

Basic Information

Free Spins
Wild Symbol
Special Bonus Game
Online & Mobile
Cthulhu screenshot 1
Cthulhu screenshot 2

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Special Features

One of the symbols that you will get help from, is the wild. You see the Cthulhu Eye in it, and you get to use it in combination with regular symbols. It substitutes for any regular symbol that’s needed in the exact position where it landed, if this gets the player a new combination. One small downside is that it doesn’t get you a prize directly.

Otherwise, the main feature of Cthulhu will take the form of free spins. These are going to require the appearance of three scatters, all in a single spin. The reels where these can land are the 1st, 3rd, and 5th ones.

You start with 10 free spins, but you can retrigger them with the same number of rounds, if another set of scatters appears.

For the free games, the adventurer symbols will fight against the minions of Cthulhu. This fight can potentially result in the adventurer turning into an extra wild, which will be sticky. If it does this, it remains on the reels until the feature is over. It will be used as a scatter as well, if a symbol of that type lands in its current position.

Maximum Payouts

Cthulhu appears to be designed to be as accessible as possible. There is a lower volatility that you will experience in its gameplay, so casual players will not lose all their funds quickly, and yet we’ve found a pretty good top jackpot that could be claimed during free spins. Up to 2,000x the stake can be won by players, in that particular mode. If we look at the regular spins only, then those can pay up to 500x the stake (50x per combo).

The part that makes the slot look less exciting, is the RTP. It’s set to 95.42%, and as you’d generally want it to be at 96% or higher, it doesn’t look great. The hit rate is also fairly low, just 15.67%, so only about 1 in 6 rounds will be a winner.


Cthulhu is an excellent slot machine if we look only at its theme and graphics, a unique offer in many ways, and a good choice for anyone that loves the horror genre and H. P. Lovecraft in particular.

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