Book Of Sirens is a Spinomenal slot that centers on a Buy Feature, Expanding Symbols, and a Bonus wheel, played on a 5-3 grid with 10 paylines. The water-themed visuals use a dark-blue palette and mythic imagery around the reels.

Additionally, Wild and Scatter symbols appear on the reels, with Spin The Wheel and the Bonus wheel offering additional feature chances. In practice, pacing and risk scale with the bet range. The Buy Feature provides direct access to the book mechanic, expanding the available options. Free Spins grant additional rounds at the current bet. Min bet USD 0.1 and max bet USD 100 apply, with RTP 96% and a top win of x53.

That combination is presented in a straightforward, neutral descriptive manner.