Skeleton Key Demo Slot by IGT Free Play

Skeleton Key is an online Slot from IGT.

Quick Facts

- Layout: 5 reels x 3-6 rows

- Paylines: 243 to 7,776 ways to win

- Key mechanics: MultiWay Xtra, Reel Expansion, Mystery Symbols

- Special symbols: Skeleton Key (Expansion), Padlock (Bonus Scatter), Question Mark (Mystery)

How the Game Plays

Skeleton Key by IGT takes players deep into an illuminated underground cavern filled with piles of gold coins and ancient artifacts. Utilizing the MultiWay Xtra engine, the game begins on a 5x3 grid with 243 ways to win. However, the top half of the reels is obscured by a mysterious green mist. When a skeleton key lands on a reel, it clears the mist to reveal up to three additional symbols, expanding that specific reel to a height of six. If all five reels reach their full height, the game unlocks a massive 7,776 ways to win. Symbols include colorful gemstones, spellbooks, chalices, and overflowing treasure chests.

Free Spins Explained

The Free Spins Bonus is triggered by landing three or more Padlock Scatter symbols anywhere on the reels. Players can receive 10, 20, or 30 free spins depending on whether they land three, four, or five scatters. During this round, the skeleton key becomes even more powerful; every time one appears, it increases a progressive win multiplier by 1x for the remainder of the feature. The mystery symbols also remain active and can transform into skeleton keys to further boost the multiplier. The feature can be retriggered, allowing for a maximum of up to 200 free spins in a single session.

Reel Expansion & Mystery Feature Explained

The core of the experience is the Reel Expansion mechanic, where keys physically "unlock" more of the grid. Unlike standard expanding symbols, these keys remove the fog and increase the number of active symbols on the board. Additionally, the Question Mark symbol acts as a mystery icon; all mystery symbols appearing on a single spin will transform into the same matching symbol, significantly increasing the chances of completing a high-value combination across the expanded paylines.

Click the Play for Free button to load the Skeleton Key demo, test its features and payouts and decide if it is a game you enjoy.