Chromeskull is a thrash and speed metal band from São Paulo, Brazil, formed in 2017 and later incorporating heavier power metal elements. The band released the EP "Deads Shall Rise" in 2019, followed by "Screams in the Night" in 2020, and their debut full-length album "Screaming to the World" in 2023. Their music is characterized by high-energy riffing, soaring leads, and a driving, hard-edged approach rooted in classic 80s metal.

Chronicode is a heavy metal band from Rio de Janeiro, Brazil, formed in 2016 and currently on hold. The band features a lineup including vocalist Mariana Figueiredo and guitarists Julia Pombo and Celo Oliveira, and operated as an independent act with themes centered on fighting spirit, personal change, and the consequences of wrongdoing.

Chronon is an instrumental progressive metal duo from Jaraguá do Sul, Santa Catarina, Brazil, formed around 2020 by guitarists David Lago and Christhopher Weinfurter. The project released its debut album "Music Field Theory" in November 2020, a digital release showcasing heavy riffs, intricate melodies, and shifting time signatures. Chronon operates as an independent act with no vocals, focusing entirely on instrumental composition.

Chronos is a heavy/thrash metal band from Santiago with roots stretching back to 1983, when founders Claudio Martínez and José Ihnen formed the group that would release the influential "Medieval Tales" demo (1986) and the album "A Dónde Vas" (1989) before disbanding. The band reunited and resumed activity in 2007, releasing the self-titled full-length "ChronoS" in 2009; drummer Eduardo "Topo" Topelberg, a member across multiple eras, also played in fellow Santiago institution Pentagram Chile.

Chumbo is a heavy/speed metal and punk band from São Paulo, Brazil, formed in 2017, drawing heavily on NWOBHM and Motörhead-style influences. The band — featuring Rodolfo Paes on vocals, Gustavo Lord Ripper on guitars, Igor Mephisto Lourenço on bass, and Breno Thunder Bastos on drums — released their self-titled debut album in 2021 to positive underground reception. Their music blends raw punk energy with classic heavy metal riffing in the vein of Mercyful Fate, Thin Lizzy, and Black Sabbath.

Chute no Rim is a crossover/hardcore punk band from Alvorada, Rio Grande do Sul, Brazil, formed in 2014. The band plays aggressive, socially conscious music rooted in the Brazilian underground punk and hardcore scene, and released the album "Peste Virtual" in 2014. They remain active and continue performing in the South Brazilian underground circuit.

Chykle is a heavy metal band from Buenos Aires, Argentina with roots going back to the mid-1980s, when they released albums including "Relámpago de Rock" (1986), "Nave Acuario" (1987), and "Jaque Mate" (1988). The 1988 album "Jaque Mate" featured tracks such as "Caviar y Champagne," "Hiroshima Enola Gay," and "Alma de Rock and Roll," and the band's lineup at that time included vocalist Olaf Mangialavore, guitarist Edy Valino, bassist Bugy Bogao, keyboardist Frank Mangialavore, and drummer Micky Llade. The band has remained part of Buenos Aires's heavy metal scene across several decades.

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.

Cienaga was a sludge metal band from Rosario, Argentina, whose lineup featured vocalist Isidro Martinez, guitarist Facundo Pereyra, bassist Luciano Dupuy, and drummer Juan Cruz Algaraña. The band recorded their self-titled debut at Sala Elefante in 2017, though the five-track album was not released until 2023, making it a posthumous document of their dense, slow-burning sound.