Book of Fire

Book of Fire is a 5×3 Egyptian-themed book slot from Merkur Gaming with a 96.02% RTP and high volatility. The slot follows the familiar "book of..." formula popularised by Book of Ra, where a single book symbol acts as both scatter and expanding wild during free spins. The game's alchemical setting—a sorcerer mastering fire elements—is largely aesthetic window dressing; the mechanics are conventional book-slot fare.

The book symbol expands to fill an entire reel when it lands, potentially converting low-paying symbols into full-reel coverage. Free spins arrive via scatters, and the expanding mechanic repeats during bonus play, creating compounding win potential. The 5,000× maximum win is reached only under optimal feature alignment and lucky symbol clustering.

High volatility means expect longer dry stretches between significant payouts. The RTP of 96.02% is respectable and sits above industry standard, though the high variance demands patience from players. Free-spin counts and multiplier structures are not detailed in the available source material, but Merkur's typical book-slot format suggests 10–15 free spins as a baseline.