Cruachan were founded in 1992 by Keith Fay, John Fay and John Clohessy. With a love of Celtic music, history and mythology, they sought to incorporate this into their music and lyrics, on a scale that had never been done before. .

Cruachan is know as one of the pagan metal genre  founder. Playing  a variety of Irish traditional and conventional metal instruments more then 20 years, they reased  nine albums.