Criptum is a thrash/death metal band from Formosa, in the remote northeastern province of the same name in Argentina. The band released their album Frenético in September 2015, channeling the aggressive sounds of classic South American thrash.

Critical Terror is a thrash/death metal band from Bogotá, Colombia, formed in 2021. Drawing on themes of anti-religion and Colombian history, they released their debut demo "Renace el Terror" that same year.

Cronos N.T. is a death metal band from São Paulo, Brazil, active since 2018. The band released the single "Last Medjai" in October 2020, a track drawing inspiration from the Assassin's Creed Origins character Bayek, previewing their album "Acto Omega". They operate as an independent act within the São Paulo underground metal scene.

Crucifixion BR is a black/death metal band that originated in Rio Grande, Rio Grande do Sul, Brazil, before relocating to São Paulo. The band released their debut album "Destroying the Fucking Disciples of Christ" (2014) through Horror Pain Gore Death Productions, blending diabolic black metal with 1980s thrash and death metal influences. Their second album "Human Decay" (2021), released on Shinigami Records, featured guest appearances from Dave Ingram of Benediction and André Rod of Brazilian thrashers Attomica.

Crucifixor is a black metal band from Barranquilla, Colombia, active since 2004. With a relentless anti-Christian stance, they released their first demo "Antichristian Retaliation" in 2017 on Legion Tarantula Productions, followed by the EP "War and Victory" (2021) and their debut full-length "Enalteciendo los antiguos principios de la rebelión" in 2025 on In Fastu Negas.

Crucifyter is a death metal band from Sete Lagoas, Minas Gerais, Brazil, widely cited as the first death metal act from that city, with roots tracing back to 1988. The band has maintained a presence in the Brazilian underground death metal scene for decades, with tracks such as "Undelusion" available on SoundCloud. They are catalogued on Metal Archives as an active act within the Brazilian extreme metal community.

Cruelty Society is a death metal band from Bogotá, Colombia. They released their self-titled Demo EP in 2020, a home-recorded effort covering themes of politics, genetics, and war.

Crushing Axes is a death metal project from São José dos Campos, São Paulo, Brazil, founded and led by multi-instrumentalist Alexandre Rodrigues. The project is largely a one-man effort, with Rodrigues handling composition, recording, and vocals, occasionally enlisting session musicians for releases. The 2014 album Undead Warrior, featuring session bass and drums, drew praise for its no-frills Brazilian death metal approach blended with groove, with lyrics exploring Norse mythology and the dark side of the human psyche.

Crypta is a death metal band formed in São Paulo, Brazil in 2019 by former Nervosa members vocalist and bassist Fernanda Lira and drummer Luana Dametto, completing their lineup with guitarists Tainá Bergamaschi and Sonia Anubis. The band released their debut album Echoes of the Soul on June 11, 2021 via Napalm Records to widespread acclaim, establishing themselves as one of the most prominent acts in contemporary Brazilian death metal. Their 2023 follow-up Shades of Sorrow further cemented their international profile.