[8] There he befriended Throbbing Gristle members Cosey Fanni Tutti and Chris Carter, who urged him to make his own music.

[7][11][12] Lustmord has extracted field recordings made in crypts, caves, and slaughterhouses, and combined it with occasional ritualistic incantations and Tibetan horns.

Some of Lustmord's most notable collaborations include Robert Rich on the critically acclaimed[13] Stalker, Jarboe, John Balance of Coil, Monte Cazazza, Clock DVA, Chris & Cosey, Paul Haslinger, and experimental sludge group Melvins on Pigs of the Roman Empire.

He worked with Tool again in 2019, providing the ocean and wave sound effects on the track "Descending" on their album Fear Inoculum.

Williams collaborated with Graeme Revell and Paul Haslinger to contribute as "musical sound designer"[4] and occasionally as an additional composer on 44 Hollywood film soundtracks, most notably on The Crow and Underworld.

[16] Lustmord performed at Art's Birthday celebration (initiated by Robert Filliou) at Södra Teatern in Stockholm, Sweden, on 15 January 2011.

Around 1999, Lustmord was also involved with the video game Planescape: Torment—his work eventually went unused when the project changed direction.

[19] He provided music and sound design for a variety of other projects since, such as Far Cry Instincts, Underworld and NVIDIA demos, many of which include collaborations with Haslinger.

[24] Lustmord had two songs used in the TV show Vikings: Valhalla seasons one and two: “Babel” and “Y Gair.” In early 1990s, Williams relocated to California from London with his wife Tracey, who is a fabricator at Legacy Effects.

He is an atheist[1] and has noted that while his ominous music gives an impression to some people that he's "somehow dark and [he] live[s] in a castle or in a dungeon", and that although he's "very serious about certain aspects of [his] work", he's "not that serious about [himself]".