Skeleton Key

by IGT

Join the ghastly Skeleton Key slot to uncover buried treasure with up to 7,776 ways to win with expanding reels.

With features such as Mystery Symbol and Free Spins with multipliers, you'll be finding the cash prize in no time. Let's hope that it's not haunted though.

Slot information

RTP: 96.49%
Volatility: Medium-High
Max Payout: 83,333x stake
Reels: 5
Paylines: 7,776
Jackpot: No
Min Bet: 0.10
Max Bet: 300.00
Themes: Halloween, Horror
Release Date: 16th Feb 2021

Our rating

“ Unlock the hidden Skeleton Key for a ghastly 7,776 ways to win ”

3.5 out of 5

Win potential

Play Skeleton Key

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Skeleton Key Screenshots

Skeleton Key Features

With wilds, free spins and expanding paylines - Skeleton Key has some haunting features. Not only that but you can win a multiplier during free spins for each skeleton symbol on the reels and even re-trigger the free spins round through landing 3 or more padlock symbols.

It also features the MultiWay Xtra game engine that changes where the number of symbols are on a reel during each spin. This works with the expanding paylines to give you a better chance to win. All you'll need to do it land 3 or more matching symbols on adjoining reels.

Reel Expansion Feature

Starting with 243 ways to win, landing a key symbol opens up the reel to reveal 3 more symbols. More symbols mean more ways to win and if all 5 reels show the maximum symbols - then you will have 7,776 ways to win.

Mystery Symbol

Any spin could contain a mystery symbol in the shape of a question mark. They can transform any symbol except the key, bonus or wild. All question mark symbols turn into the same symbol on the reel for a payout.

Free Spin Bonus

Landing 3 or more padlock symbols will activate the free spins. You’ll receive 10 free spins initially but be awarded an extra 10 for each additional padlock symbol. Starting with a 1x multiplier, but increases with each skeleton key symbol that lands.

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Skeleton Key Review

More like a horror slot with adventure elements, Skeleton Key has 5-reels with 243 base paylines that expand to 7,776 throughout the gameplay. Developed by IGT, this slot features spooky skeletons, mysterious ghosts and haunting imagery that’ll leave a shiver down your spine.


Straight from opening the slot, any fans of The Goonies will notice some similarities. Whilst it has a creepy setting - it leans more towards soft horror than gruesome. The background is in an abandoned cave filled with treasure, pirate ships and skeletons. Symbols and general designs look cartoonish rather than sinister which dies down the horror quite a bit.

Epic music is played in the background to emulate a pirates’ voyage or big adventure, which only adds fuel to the comparison between this slot and The Goonies’ film and slot. They are two completely different things but it’s clear that a lot of inspiration came from The Goonies.


As with most IGT games, you’ll find the menus at the top. Payline, game rules and sound options will all be available there. The bet level will be available to the left of the reels, whilst the spin and autospin buttons are to the right. You can set a bet between 0.10 and 300.00 with the max autospin at 50.

Win Potential

The most you can win in the base game is 50x your stake with 5 of the skeleton chests rolled. With the MultiWay Xtra feature, there are 243 to 7,776 ways to win on every spin. By expanding the paylines to 7,776 and multipliers in the free spins, you could win up to 83,333x your stake. However, it is capped after this so you’ll have to settle with 83,333x your stake.

Now, the RTP ranges between 92.43% and 96.49%. This means that the RTP can vary depending on the length of your playthrough. The fewer the games, the higher the RTP. With the higher RTP being at 96.49%, the win potential is pretty good. Of course, the variance is a little disappointing.

Our Verdict

Skeleton Key is spooky enough but doesn’t reinvent the wheel. That’s not to say that it’s not a fun and entertaining slot, but don’t go in expecting too much. The free spins with multipliers and mystery symbols are a cool feature that’ll help you win even more.

Don’t expect a terrifying game with this horror theme slot, it’s more leaning towards 80s family friendly horror. If that sounds like a slot for you, then give Skeleton Key a try.

Sam Gascoyne
Reviewed by Sam Gascoyne Last updated on

A keen sports bettor, Sam took his first foray into the world of online slots when Bonanza Megaways caught his eye, he’s never looked back since! He joined the team in 2019 and has developed an encyclopedic knowledge of online slots, he isn’t afraid to voice his honest opinion when reviewing new games, even if it does ruffle a few feathers.

Learn more about Sam here

Play Skeleton Key

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