Devil's Number Demo Slot by Red Tiger Free Play

Devil's Number is an online Slot from Red Tiger.

Quick Facts

- Layout: 5 reels x 4 rows

- Paylines: 30 fixed

- Key mechanics: Mark of the Beast (Symbol Upgrade and Symbol Removal), Cascading Reels (during features)

- Special symbols: Secret 9 (Scatter), Potion Bottle (Highest Pay)

How the Game Plays

Devil's Number transports you into a dark, candlelit library filled with forbidden knowledge and occult artifacts. This 5x4 slot by Red Tiger Gaming uses a comic-book aesthetic to depict a sinister setting of skulls, cauldrons, and spellbooks. Winning combinations are formed by landing three or more matching symbols across any of the 30 fixed paylines. While the base game appears standard, the "Mark of the Beast" mechanic can trigger randomly on any win. If it strikes high-paying symbols like the Potion Bottle or Book, it upgrades their value for that spin. If it hits low-paying royal symbols, they are removed from the grid, triggering a cascade where new symbols fall into the empty spaces.

Free Spins Explained

The feature is triggered by landing three golden "9" symbols on the middle reels. In a thematic twist, these symbols flip to reveal "666," awarding 12 free spins. During this round, the Mark of the Beast becomes significantly more powerful. Once a high-paying symbol is upgraded or a low-paying symbol is removed, that change remains permanent for the rest of the free spins session. This progressively thins out the reels, leaving only high-value and upgraded symbols for potential wins toward the end of the bonus.

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