In 'Echoes of the Deep,' you assume the role of an underwater detective who navigates a world of sentient sea creatures and treacherous waters. Set in a vibrant underwater city known as Aquapolis, where marine life thrives and ancient secrets linger, your mission is to uncover the truth behind a series of mysterious disappearances of dolphins linked to a powerful artifact. As you interact with a cast of quirky aquatic characters, you'll solve puzzles, navigate moral dilemmas, and ultimately confront the dark forces hidden in the depths. The story is influenced by your choices, leading to multiple endings that reward exploration and clever thinking.