The band received good feedback for their demo work and soon signed to the cult label Head Not Found Records, who released Ragnarok's debut album Nattferd in 1995.

[1] The band was generally dissatisfied with Head Not Found Records, and intended to leave in 1996, but were persuaded to sign a contract for two more albums after the label offered them a much better deal.

In 1997, work was begun on Ragnarok's second album, titled Arising Realm, which featured Shagrath of the band Dimmu Borgir on keyboards.

[1] In 1998, Ragnarok went on tour for the first time, playing eight shows in Denmark and Germany in addition to the Blood Log Festival in Leipzig.

Diabolical Age was not finished until late in 1999, and by the time it was actually released Thyme had left the band, to be replaced by vocalist Astaroth, and Sander had joined as a second guitarist.

It was soon clear, however, that Sander was not cut out to perform with the band, so he was kicked out and replaced with Lord Arcamous shortly after the eventual release of Diabolical Age in 2000.

[8] When they appeared there in 2003, a reviewer from HeavyMetal.no said their performance "fitted very well into [my concept of black metal], both good and bad" and seemed to please large numbers of the crowd.