There are multiple artists with this name:

1) Nihilum was a Swedish depressive ambient solo project formed by Nachtzeit (Durthang, Life Neglected, Lustre, Starlit et cetera). He released a full-length, "Utopia Opened With a Thousand Blades" in 2005 (limited to 150 copies), and two demos, "Dead and Forgotten" in 2004 (limited to 500 copies) and "The Faint Hour" in 2006 (limited to 600 copies). All releases are on tape.

2) Nihilum is an electronic music producer from Limburg, Germany. Also known as Aartis.

3) Nihilum is an one man black metal project from Kansas City, Missouri Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.