Cenotafio is a black/death metal duo from Temuco, formed in 2015 by guitarist/vocalist Daniel Hermosilla and drummer/vocalist Patricio Kusnir, both veterans of the southern Chilean underground through prior projects Odrum and Invehertex. Their debut demo "El Encierro de las Grandes Revelaciones" (2015) established a cavernous, slow-burning sound that carried through their debut full-length "La Fatídica Excrecencia de la Subtierra" (Memento Mori, 2017), the sophomore "Larvae Tedeum Teratos" (Blood Harvest, 2019), and the 2026 third album released on vinyl through Demoniac Productions.

Chaos Synopsis is a thrash/death metal band from São José dos Campos, São Paulo, Brazil, formed in 2006. The band has released multiple full-length albums including Kvlt ov Dementia (2009), Art of Killing (2013), Seasons of Red (2015), and Gods of Chaos (2017), and has toured in both Brazil and Europe. Their approach blends thrash and death metal while drawing thematic concepts from each album — ranging from madness and serial killers to historical conquerors.

Chemical Disaster is a death metal band from Santos, São Paulo, Brazil, formed in 1993 out of members of the local thrash band Ignorance. Their debut album "Resurrection" was released in December 1993 on Cogumelo Records, followed by "Scraps of a Being" (2000) and "Third Wound" (2011) on Violent Records. The band's sound blends chunky, mid-paced death metal with aggressive riffing and remains active as one of the most enduring extreme metal acts from the Santos coastal region.

Child o' Flames is a melodic thrash/death metal band from Curitiba, Paraná, Brazil, formed in the mid-2000s. The band draws heavily from melodic death metal and has shared stages with international acts such as Sepultura, Misfits, Biohazard, Suicidal Tendencies, and Grave Digger. In 2020 they returned from a hiatus with the single "Reach Out The Sky" and the album "A New Rising," which was nominated in the Best Album category at Brazil's Roadie Crew annual awards.

Choke is a groove/death metal and grindcore band from Curitiba, Paraná, Brazil. Signed to Top Music Brazil, the band's lyrical themes center on death, misery, and social unrest, and their early releases include the demo "Dictatorshit Holocaust from Third World" (1999) and the split CD "Manifest" (2001) with STN, followed by "Slum Radio" in 2003.

Cicuta was a death metal band from Santo Antônio de Jesus, Bahia, Brazil, that has since split up. The duo — comprising Pedro Rodrigues on bass, synths, and vocals, and Sérgio Gregório on drums — released a self-titled album with nine tracks. Their music represented a raw, underground strain of Brazilian death metal from the interior of Bahia.

Cirrhosis is a death metal band from Uberlândia, Minas Gerais, Brazil, originally formed in 1988 by members who also played in Sarcófago; after dissolving in 1993 they reformed in 2001 and signed with the legendary Cogumelo Records. The band released the full-lengths "Alcoholic Death Noise" (2002) and "Drinks From Hell" (2009), built around a booze-and-brutality lyrical identity rooted in the classic Brazilian extreme metal tradition.

Clamatorius is a black/death metal band from Goiânia, Goiás, Brazil, originally active from 1999 to 2005 under their own name after an earlier incarnation as Postumus (1998–1999). The band is notable for fusing extreme metal with Christian lyrical themes and released the five-track album "Consummatum Est" through Blackened Label Records.

Clan dos Mortos Cicatriz is a death-punk band from Curitiba, Paraná, Brazil, blending raw black metal, death metal, and hardcore punk into what the underground has called "nekro-hardcore." The band released their debut album "Técnicas de Morte" in March 2025 via Sentient Ruin Laboratories, a 15-track, 25-minute record described as a grim manifesto drawing imagery from slums, prisons, morgues, and war zones.