"Requiem" was released on 26 September 1980 on 7" vinyl by E.G. Records and Malicious Damage as the second single from the band's first album, backed by the B-side "Change". A 12" version of the single was also released, with "Change" and a demo of "Requiem" as the B-sides.
The British industrial metal band Godflesh performed "Requiem" live on their 2001 tour in support of their album Hymns For that tour, the group was accompanied by the Killing Joke bass guitarist Paul Raven and, in one instance, by the Killing Joke singer Jaz Coleman..
Requiem was covered by the British post-punk band Eagulls in 2013 as the B-side to their "Nerve Endings" single, which received a limited release on 7" vinyl.
The French band LANE (Love and Noise Experiment), created by ex-members of the Thugs and Daria, two bands from Angers, performed it live during its 2018 tour, and then recorded a studio version in 2019 that can be found on Spotify.