Book of Inferno Slot Machine

Book of Inferno Game Details

Quickspin takes players to the underworld's depths in Book of Inferno, a scorching online slot game, teeming with demonic animals, molten lava, jagged rock formations, and terrifying sculptures beneath a dark, menacing sky. This spooky backdrop is reflected in the 5-reel game grid, which is divided into three rows and crossed by ten fixed paylines.

The game follows the traditional 'Book of' pattern, with expanding symbols that pay on all lines during free spins. However, it adds a new twist by including this element in the base game as well as a Marked symbol upgrade mechanic. When a Marked symbol appears and there are enough to produce a winning combination, it expands to fill the entire reel. These extended symbols pay across all paylines independent of their position. If a Book sign lands alongside a Marked symbol the Marked symbol is upgraded to the next highest value perhaps leading to more expansions. If the Marked symbol outperforms the highest-paying symbol the low-paying symbol gets promoted to the top. Landing three, four or five Book symbols awards ten, fifteen or twenty free spins with bonus rewards of two, twenty or two hundred times the bet. The bonus round allows you to retrigger the same number of free spins. At the start of free spins a comprehensive grimoire appears to randomly select a pay symbol that will be marked for the duration of the game. Players can also buy the free spins feature for 125x their stake, which is triggered by three or more Book symbols.

The Free Spins and Expanding Symbols introduce layers of excitement and opportunities for substantial wins making it essential for slot enthusiasts. The seamless graphics and gameplay offer a high-quality experience on both desktop and mobile devices, and it is available to play on the Spin Genie website. Will you brave the infernal heat to uncover the legendary riches? Play now and ignite your fortune!