Edge of Sanity is a Swedish melodic death metal band formed in 1990, known for pioneering the fusion of death metal with progressive and atmospheric elements. The band gained critical acclaim for their concept albums and intricate musicianship, particularly albums like "Purgatory Days" and "The Spectral Sorrows," which showcase their signature blend of heavy riffs and haunting melodies. With their influential contributions to the melodic death metal genre, Edge of Sanity remains a cornerstone of Swedish metal's legacy.