Creptum is a black metal band from São Paulo, Brazil, formed in 2003 after operating briefly as Nekros. Signed to Drakkar Productions South America, the band released their debut full-length Of Lies, Curses and Blood in 2016, followed by the EP Reborn in Flames (2017) and the sophomore album VAMA in 2020, a nine-track record drawing on occult and literary themes.

Crow Dominions is a black metal duo from Mendoza, Argentina, formed by the musicians known as Hellpher and Misahn after their previous band Valquiria disbanded. The duo released Emerging Holocaust in 2021 and have been active on Bandcamp with tracks including Ignis Luciferian Symphony.

Crux Cullum is a death/black metal band from Belo Horizonte, Minas Gerais, Brazil, formed in 2007. The band operates within the underground extreme metal scene of Belo Horizonte, a city with a long tradition of producing extreme metal acts, blending black and death metal elements in their sound.

Cult of Enthropy is an instrumental black metal band from São Paulo, Brazil, formed around 2020. The band released their debut album Embrace the Void on October 21, 2020, followed by a limited physical CD edition of 100 copies in May 2021. Their music is entirely instrumental, exploring atmospheric black metal textures without vocals.

Culto a la Malevolencia is a death/black metal band from Arica, Chile, formed in the late 2010s and active with blasphemous and anti-Christian lyrical themes. Their debut EP "In Nomine Capra," released in January 2019, draws conceptual inspiration from the Cueva de Salamanca, a Chilean site historically associated with witchcraft.

Culto Licántropo is a black metal band from Bogotá, Colombia. Signed to Sacrilegio Records, they released their debut EP "Culto licántropo eterno" in 2024.

Culto Profano is a Brazilian black metal band associated with the Choduus Brotherhood, an underground collective of Brazilian black metal acts. The band released the album "Inferno" on pro CD-R in 2010 and contributed to a split titled "666" with Naberus in 2015; both releases were later compiled on "Bestial Triunfo" in 2022. The band has since split up.

Círculo Polar is an Argentine black metal project that released the album Atemporal in 2015, establishing the band's raw and atmospheric approach to the genre. The project has maintained an underground presence through its Bandcamp page, where tracks such as Mar Muerto reflect a cold, minimalist black metal aesthetic.

Dagötkmelir is a black/death metal solo project from Santiago, Chile, created by Diego H. von Kunowsky. The project released a self-titled album on Bandcamp, operating in the underground extreme metal sphere with minimal public profile beyond that release.