Brutta is a blackened death metal band formed in 2022, featuring São Paulo-based drummer Gledson Gonçalves alongside guitarist/vocalist Adriano Ribeiro (Athemon) and bassist Tom MacLean (ex-Haken). The band released their self-titled debut album in June 2022, a high-speed eight-track assault exploring themes of emptiness, hatred, and religion, followed by the album "Horror" in 2025.

Buena Muerte is a death metal band from Florencio Varela in the Buenos Aires metropolitan area of Argentina, featuring guitarist and vocalist Favio Leguizamon alongside bassist Jose Manuel Araujo and drummer Hector Benito Paz. The band released the Dios Es Sádico EP in 2018 and the full-length album Catalepsia in 2024, building a steady presence in Argentina's underground death metal scene over two decades.

Burial Temple is a death metal band from Brasília, Brazil, whose music is centered on themes of necrolatry, funeral rites, and death worship. The band released their debut demo "Mortal Scum" in 2019, recorded live at Texas Studio in Brasília, and the recording was released in 2020 through underground label Cianeto Discos. They describe their sound as "an agonizing threnody of misery; a passionate ode to Death and its infinite ways."

C.R.U.E (Comando Resistência Underground Extremo) is a black/death metal band from São Paulo, Brazil, active within the city's underground extreme metal scene. The band is signed to Brazilian Ritual Records, under whose banner they released a split with fellow São Paulo act Transgressor featuring their material "Metal das Ruas" in 2021. Their music is rooted in the raw, aggressive tradition of Brazilian underground metal.

Cabo de Hornos is a death metal and grindcore band from Monteros, Tucumán, Argentina, featuring Alberto on guitar and vocals, Marco on guitar, Francis on bass, and Tigre on drums. The band released their album Let Them Die, a blunt and uncompromising assault that represents the extreme underground of Argentina's northwestern provinces. Their sound sits at the intersection of grinding brutality and death metal heaviness.

Cactek is a deathrash project from Rio de Janeiro, Brazil, formed by guitarist Pedro de La Rocque with the aim of channeling the raw energy of early death and thrash metal. The band released their debut EP "Sunrise in Hell" in September 2023, produced by Dan Swanö, and was featured among ten notable underground Brazilian acts to watch in 2024. Their sound blends technical thrash with death metal aggression in the tradition of the classic Brazilian extreme metal scene.

Cancerbero is a death metal band from Concepción, Chile originally formed in 1987, releasing two early demos — Guardian of Hell (1988) and Perpetual Agony (1991) — before disbanding in 1994 and reforming in 2001. The band delivers old-school death metal rooted in the raw, thrash-inflected aggression of the late 1980s, and has released three full-lengths: At the Portal of Evoked Blasphemies (2012), Reconquering the Throne of Death (2019), and Sempiternal Decay (2025).

Canilive is a death metal band from Rio de Janeiro, Brazil, active since 2011. The band plays technical, heavy death metal with grindcore influences, and released their debut EP "Psychosomatic Schizo" in 2016 after a period of hiatus and lineup changes. They are an active presence in the Rio de Janeiro underground metal scene.

Cantera is a death metal band from Posadas, Misiones, one of the few extreme metal acts to emerge from Argentina's northeastern Mesopotamia region. The band has appeared on the regional compilation Posadas bajo tierra alongside fellow Misiones acts Sadistica, Najash, and Lobregal, documenting the underground metal scene of the city.