The band plays a raw type of black metal music with occasional punk influences and lyrics from Christian point of view.

Necrodisaster 2002 was released in March, and Frosthardr did their first real live performance at Askim Metal Night among with groups such as Drottnar, Mondo Revolver, Bleedience, and Questor.

[4] In between writing new songs during 2003, Frosthardr played at Destructionfest in London, UK, and Nordicfest in Oslo, Norway before entering the studio to record their debut EP Maktesløs.

In 2007 they played at Cornerstone Festival, appeared on the documentary film Murder Music: A History of Black Metal in which vocalist Ravn Furfjord reveals that "It is difficult to find people who are interested in this kind of music and share our point of view, the Christian point of view."

The band was featured on the 2008 documentary, Light in Darkness – Nemesis Divina, which was shown at film and music festivals throughout the world and deals with the commonly viewed as 'paradoxal' concept of Christian black metal.