Book of Helios is a 5×3 slot featuring 10 Paylines, with an RTP of 95.51% and a maximum win of up to 20168.4 x .

The theme leans into adventure; mythology; treasure; fantasy; greek, shaping the game’s characters, visuals, and overall atmosphere.

The game includes feature-driven mechanics such as buy bonus, free spins,   expanding symbols, scatter symbol, multiplier, designed to enhance win potential during bonus play.

Special symbols such as wilds, feature symbols, and value symbols play a central role, influencing outcomes across both the base game and bonus features.