Euronymous, co-founder of Mayhem and founder of Deathlike Silence Productions, described Abruptum as "the audial essence of pure black evil".

After the release of a 7-inch EP Evil in 1991 (later re-released by Psychoslaughter), All began to drink heavily and was forced to leave the band.

[3]It has been wrongly rumored IT left the band and the black metal scene altogether in 1996, following numerous threats made to him and to his family.

Evil continues his work with Marduk and Death Wolf (formerly known as Devil's Whorehouse), yet brought Abruptum back in 2008, recording and releasing an EP ("Malediction") that same year and a full-length ("Potestates Apocalypsis") in 2011 under his Blooddawn Productions label.

Earlier material had shorter songs, but their later releases typically included one or two tracks with more than forty minutes of music.

They primarily used standard drums, guitars, bass, keyboards, and other various instruments, but what stood out even more was the screaming, as the band supposedly tortured and cut each other during their recordings.