In Sylvio: Black Waters, you are alone in an unfamiliar land eerily similar to Earth, but somehow not quite right. You discover a mysterious device that seems to let you listen to the spirits of those who once inhabited this place. The device picks up the voice of a man named Lee, who claims to be the last survivor on this planet. A trail of clues leads you into the pitch darkness at the heart of this world, where answers about the past, and your possible future, may lie.