Skeleton Key Slot Game

Skeleton Key is a game with plenty going on, but the basic game board is made up of the standard five reels. It doesn’t have traditional paylines but offers the popular 243 ways to win, so you’ll just need to land symbols in consecutive reels moving from left to right. However, if you hit on the expanding feature, the board grows bigger and the number of potential paylines rockets up to 7776. All of this means it offers a potential max win of x83,333.

You can play this online slot here at Prime Slots.

The cave in the game is full of gold and gems. There are locked symbols covered with a greenish haze, which gives it mysticism. On the dark blue reels, you will find figures from A to J, as well as 3 gems, a book of spells, and a chalice. The treasure chest tops the payout list. There is also a joker that replaces all other symbols.

The expanding reels feature plays a central role in the gameplay. The session kicks off on a common 5x3 layout, and whenever a key symbol lands anywhere in view, it unlocks the respective reel and reveals 3 more symbol positions on top of the main reel set, increasing the number of paylines. The key is then removed, and new symbols tumble down and fill empty spaces.  The grid maxes out at 5x6 size, producing 7,776 ways to play.

The question mark tiles are Mystery Symbols here, which can randomly land on the reels on any spin. Whenever they do, they transform into the same instance of a randomly chosen symbol.

Hit three, four, or five bonus symbols, and you’ll play ten, 20, or 30 free spins. If two or more bonus symbols appear during this feature, more free spins are awarded. The Mystery Symbol feature can also transform random symbols into keys or other symbols. Play the features in the Skeleton Key slot machine for the chance to win up to 25,000,000 coins.