Rawness is a black-n-roll and metalpunk band from Puerto Madryn, Chubut, Argentina, drawing heavily on the raw sounds of Venom, Motörhead, Discharge, and Midnight. Their self-titled debut album, released on February 20, 2025, features seven tracks including "Warfare Noise," "Black Steel," and a cover of Inepsy's "Bombshell Rocks."

Rawthrone is a two-piece raw black metal band from Rio de Janeiro formed in 2020, consisting of Hellmaniac (vocals, guitars, bass, keyboards) and Splatter (drums). The project released its debut full-length Encased in Darkness in 2020 through Blizzard Records, followed by Crossing Limits — a ten-track album that includes a Darkthrone cover ("Unholy Black Metal") — and Ready to Chaos.

RawWar is a black/death metal project from Belo Horizonte assembled by Valério Exterminator of Holocausto War Metal and Gilson of Goatpenis, with additional contributions from Cernunnos of Wolflust. The project released the album Caído em Batalha in 2021 through WarCore Records, the Belo Horizonte label run by members of Holocausto.

Raza Odiada is a heavy metal band from González Catán, Buenos Aires, Argentina with a prolific output spanning over two decades, including the albums "Cementerio de Mujeres" (2004), "Igual Que Ayer" (2005), "Aca No Se Rinde Nadie" (2019), and "Heavy Metal Circus" (2024). The band's core songwriting has been driven by guitarists Abraham Morales Acosta and vocalist Alberto Escalante Gonzales.

Razón de Acero is a melodic death and groove metal band from Santiago, Chile, formed in 2009. The band — whose name translates to "Reason of Steel" — released their debut EP "Desde El Caos" in 2010 and have remained an independent act throughout their career. Their lyrics center on themes of existentialism, perseverance, and inner struggle.

Razón de Ser is a heavy metal band from Comodoro Rivadavia, Argentina featuring vocalist Daniel Baulde, guitarists Miguel González and Ramiro Martínez, bassist Víctor Gómez, and drummer Lorenzo Martins. Their self-titled debut album, released on June 6, 2019, was recognized in the "Headbangers Latinoamérica" survey among South America's most outstanding releases of that year.

Reactive Delusion is a progressive death metal band from San Fernando del Valle de Catamarca, Argentina, built around the guitar work and production of Emiliano Tula alongside vocalist León Pardo and bassist Diego Diaz. Their debut EP "Paradox of Perception," released on June 1, 2015 and produced at RD Studios, blends technical death metal with synthesizers and keyboards across six tracks.

Real Insane is a thrash metal band from Ibiúna, São Paulo, formed in 2018, with a lineup of Rodrigo (guitars, vocals), Bruno (guitar), Paulo (bass), and Cidão (drums). Their debut release was the six-track EP Underworld, recorded at Laboratório Underground in May 2018 and released the following month.

Realidade Encoberta is a crossover thrash band from Recife, Pernambuco, originally founded in 1987 by Nado and Daniel Malcriado; the band disbanded after Nado's death and reconstituted in 2013 with a new lineup anchored by vocalist Carlos Underground and guitarist Túlio Falcão. Since the reunion they have released Momentos Antes do Caos (2014), Morte e Progresso (2016), and Não Vivamos Mais Como Escravos (2019), the last of which closes with a Minor Threat cover.