Pneuma Hagion was formed by R. in January of 2015 with the intent to create suffocatingly heavy death metal and the early demos featured muddy, claustrophobic death metal with eerie, unconventional vocals. Over the next few years, the inspiration driving the band changed, a new sound was being conceived and with S. joining on drums, Pneuma Hagion began to focus on creating music inspired primarily by mid-era Morbid Angel, specifically the album "Gateways to Annihilation".