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Grim Muerto

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Grim Muerto is a video slot machine from Play'n GO. It has a Mexican theme with skulls, guitars and great music. Players that enjoy slot machines like Book of Dead might see some similarities to the expanding symbols feature they can win in the free spins on this machine. It's not exactly the same, as the expanding symbols are wilds only and requires a golden background behind the reel to expand, but it's still a similar concept with expanding symbols. Grim Muerto even has potential to give an expanding wild symbol during the base game, with a feature named Marco Siniestro. There is also a second chance feature, where it's enough to have 2 scatters to get a chance to enter the free spins or to win a cash prize. During the free spins additional wild symbols are added! The maximal win potential per spin is 1.000x the stake, and it can only be won during the free spins, as this is where you can fill the whole screen with expanded wild symbols. The payout percentage for Grim Muerto is about average for online slots and is set to 96.51%.

Game data

Slot name



Release date


Free spins

Bonus game


Grim Muerto Play'n GO 96.51% 2016-07-12 20




This slot machine is available on these casino platforms:
Computer, Mac, iPad, iPhone and other mobile devices.

18+ required - New customers only - BeGambleAware - T&C apply!


Read more about the game features below the screenshot!

Game screenshot

Game features

Let's first of all take a look at the golden reel feature. On each spin during the base game, one of the 5 reels will have a golden background. If a wild symbol lands on a gold reel, the wild symbol will expand to cover the whole reel. This feature is expanded during the free spin feature, and more of the reels will have a golden background for each spin.

Grim Muerto has wild symbols on all the 5 reels and these symbols substitute for all other symbols except the books in the base game, and the candles in the free spins. The wild symbols will also expand if they land on a reel with a golden background. The main feature on this slot machine is the free spins, and within the feature one of the scull musicians will turn wild to increase the win chances. If you struggle to trigger the free spins, the second chance feature might be what you like to see. This is a feature that gives you a chance to trigger the free spins with only 2 scatter symbols. Let's have a closer look at the different features.

Second chance: The second chance feature is triggered when 2 scatter books land anywhere on reel 1, 3 and 5. This combination will trigger a pick bonus where you get 4 different skull musicians to choose between. One of the musicians will hide a red x that aborts the bonus, two of the musicians will hide a small cash prize, while the last musician will hide a book. If you find the book, the free spin feature is triggered just like it would have been if you got 3 scatter book symbols in the base game.

Free spins: The free spins can be triggered in two ways. Either by the second chance as described above, or by getting a scatter book symbol anywhere on reel 1, 3 and 5. This combination will trigger 10 free spins, and select 1 out of the 4 musicians to become an extra wild symbol during the free spins. During the free spins 2, 3, 4 or 5 reels will get the golden background for each spin, and the number of golden reels will change between the spins. During the free spins, both the normal wild and the additional wild will expand if they land on the golden reels. The books are replaced by candles during the free spins, 1 candle will reward you with 3 additional spins, 2 candles will give you 6 spins, while 3 candles will re-trigger the whole free spin feature.

Casino to play at / Provider

Grim Muerto is created by Play'n GO.
Read more about Play'n GO!

18+ required - New customers only - BeGambleAware - T&C apply!


18+ required - New customers only - BeGambleAware - T&C apply!

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