Dive deep into the cerulean depths, where the mighty Poseidon, ruler of the seas, holds court in his shimmering underwater kingdom in Book of Poseidon. The reels plunge players into a breathtaking aquatic realm, surrounded by ancient Greek ruins draped in seaweed, coral formations teeming with life, and the serene yet powerful presence of oceanic magic. Sunken ships and golden treasures lie scattered on the seabed, hinting at forgotten riches waiting to be discovered. The symbols glitter with marine life, formidable Greek warriors, and the majestic trident of Poseidon himself. An ethereal, wave-like soundtrack accompanies each spin, pulling you further into the mythical abyss, where the ocean's mysteries and epic wins converge. The fabled Golden Book of Poseidon serves as the ultimate guide through these submerged marvels, acting as both a wild symbol to complete oceanic winning lines and a sacred scatter to unlock the most profound treasures. When three or more Books emerge from the swirling currents, you are granted passage to the Free Spins feature, a moment of profound revelation. Before these bonus rounds begin, one symbol is randomly chosen to become the special expanding symbol. As the Free Spins unfold, whenever this symbol graces the reels, it commands the ocean's power, expanding to cover its entire reel, ensuring tidal waves of payouts. Furthermore, the benevolent Poseidon often allows for the retriggering of Free Spins, ensuring that your journey through his watery dominion is long and fruitful, culminating in legendary hoards of gold and glory.