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.

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.

Dark Devotion is a melodic death/black metal band from São Paulo, Brazil, formed in 2016. Their debut release "Loss," issued in January 2016, blends death and black metal elements and is available on Bandcamp with tracks including "Marcha Fúnebre" and "Grief, Pain and Despair."

Dark Empire is a black metal band from Manaus, Amazonas, Brazil, listed on Metal Archives as a split-up act. The band operated independently in the Brazilian underground black metal scene.

Dark Flames is a black metal band from Londrina, Paraná, Brazil, with lyrical themes drawing on paganism and Satanism. The band released material through Goat Music Records before splitting up.

Dark Isolation is a one-person ambient black metal project from the São Paulo state city of Valinhos, Brazil, formed in 2009. The project blends oppressive black metal with dark ambient textures around themes of suffering, sorrow, and death. Releases include the albums "Nebel Leichenhalle" and "The Fragrance from Decomposed Flowers," as well as the 2024 EP "Remnants of Distress."