The story of Edge of Eternity is set in the world of Geryon. The arrival of a mysterious alien force has plunged the planet into an endless war. For several years, the conflict between magic and technology has grown to catastrophic proportions, but by the beginning of the game events, an even greater threat arose – the deadly disease Corrosion, which turns all life forms into vile monsters. Players in the role of a young soldier have to go on a grand adventure and change the fate of Geryon.