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Skeleton Key

There’s paylines and otherworldly adventures aplenty when you explore the underground realms of Skeleton Key. Get ready to experience from 243 up to 7,776 ways to win and get the chance to unveil even more riches when the Key symbols appear as they’ll expand the reels and transform some of the other symbols, increasing your chances to win even more. Will you take home 83,333x your stake?



Get ready to have some skele-fun and the chance to play with 243 up to 7,776 ways to win when you journey underground into the eery caves and play Skeleton Key online. Look out for the key symbol as it unlocks even more reels and ways to win, whilst mystery symbols can appear as if from nowhere, transforming other symbols to create even more winning combinations. There are even 30 free spins waiting to be pulled from the ether with a Free Spins Bonus… more keys in the bonus means bigger multipliers and more ways to win.

Did you open the door to enormous wins with Skeleton Key? Don’t forget about our other online slots and games at Mecca Bingo.

How To Play

For information on symbols and base game instructions, please see in-game help menu.


Reel expansion

If a Key symbol appears on any reel, then that reel expands to 6 symbol positions high. On the next spin the reel height remains 6 symbols high before dropping down 1 position on subsequent spins until it reverts to 3 symbols positions high. If a Key symbol lands at any point during the sequence, the reel expands to 6 symbols high and the sequence resets. Multiple Key symbols can land at once across all reels at any time.


Mystery Symbol

Mystery symbols can land on any spin and transform all Mystery symbols into the same symbol.


Free Spins Bonus

3 or more bonus symbols trigger the free spins bonus: 3 bonus symbols award 10 free spins. 4 Bonus symbols award 20 free spins. 5 Bonus symbols award 30 free spins. Each Key symbol that lands during the bonus triggers the Reel Expansion feature and awards a 1x multiplier which adds to an accumulating win multiplier. During the free spins bonus, mystery symbols can transform into key symbols meaning big jumps in the increasing win multiplier are possible.


Malfunction voids all plays and pay.

Game Information

  • Min stake: 10p
  • Max stake: £50
  • Max payout: £250,000
  • Jackpot: No
  • Paylines: from 243 up to 7,776 ways to win
  • RTP: 94.46%
Available on