Canadian death/thrash metal band Necrosis was formed in April 1988[5] by drummer Mike Atkin, guitarist Steve Thibault and vocalist Dan "Lord Worm" Greening, initially under the name Obsessive Compulsive Disorder.

Todds left shortly thereafter, retiring from music to focus on his family; he was replaced by Kevin Weagle; Dave Galea also joined the band.

In 1996, the line-up of Worm, Mounier, Levasseur, and Langlois released the album None So Vile on the Swedish label Wrong Again Records.

Although Levasseur handled all the guitar parts on the album, the band would add Miguel Roy as a second touring guitarist.

[5] In July 1997, Cryptopsy's appearance at the Milwaukee Metalfest XI gained the attention of many American metalheads,[7] as well as that of the label Century Media.

Lord Worm rejoined the band and through summer 2004, Cryptopsy played shows in the Montreal area, and began a full Canadian tour in September, with former guitarist Miguel Roy filling in for the unavailable Jon Levasseur.

The setlist for this tour began with the entire None So Vile album, followed by songs from Blasphemy Made Flesh and Whisper Supremacy.

The Canada 2004 tour ended at Cryptopsy's performance on November 6 at the Trois-Rivieres Metalfest IV, which was filmed for a live DVD.

Dan Mongrain remained on guitar duties for the Back to the Worms tour through the United States from February to May.

The album features original vocalist Lord Worm, Flo Mounier, Eric Langlois, and Alex Auburn handling all guitar duties except the intro track "Luminum".

The album also showed a heightened experimentation in the band's songwriting, introducing some slight elements of avant-garde, mathcore and others.

On December 4, 2007, Cryptopsy revealed the addition of vocalist Matt McGachy, of fellow Montreal heavy metal band 3 Mile Scream; and a new keyboard player, Maggy Durand.

Pre-sales of the EP began on September 7 along with a music video of their new song "Sire of Sin", which was to appear on Tome II.

On May 8, 2023, Cryptopsy announced that they signed with Nuclear Blast Records and revealed the art and details of their eighth album entitled As Gomorrah Burns, the band's first full-length in 11 years.

[18] Daniel Gioffre of AllMusic describes the band's style of death metal as having "sacrificed" melody, harmony, rhythmic clarity and song structure in pursuit of "one overriding goal [...] extreme brutality.

"[19] James Christopher Monger of AllMusic made note of Cryptopsy's "uncompromising sonic attack" and "technical acuity".

[21] Graham Hartmann of Loudwire said, "Foregoing any trace of enunciation, Lord Worm becomes increasingly unhinged with every passing word and attempting to follow along with a lyric sheet is utterly futile.