Power/progressive metal band from Buenos Aires, Argentina, active since 2012. The band released the full-length album Changes on June 17, 2018, through Heart of Steel Records in digital format. They remain one of the few Argentine acts signed to Heart of Steel Records.

Preceptor play a bludgeoning style of death metal with roots in the early nineties, pairing torn riffs and brutal vocals with an uncompromising underground attitude. Their 2017 album Dogmatismo was recorded at Estúdio Riff and mixed by Dennis Israel, followed by Súditos do Abismo in 2022 — a record built around Bruno's guitar work and Alexander The Abyss's lyrics.

Predatory are a São Paulo thrash metal outfit whose material has been picked up by underground compilations including Suspiria de Profundis II and Violent Records' Endless Massacre IV, on which their track "Hated" appeared. Their sound is rooted in personal, gritty themes delivered through the hard-hitting thrash tradition of the Brazilian underground.

Prefatory are a young thrash metal band from the sertão region who made their first notable public appearance on the Gulpian Metal Fest underground compilation released by Sangue Frio Produções in 2023, contributing the tracks "Endless War" and "We Are Resistant". Their approach draws from classic aggressive thrash with a raw, no-frills energy.

Prelludium blended melodic power metal with progressive structures in the tradition of the classic European scene, previously operating under the name Sygnus before regrouping around 2006. The band released Awakening - The Unplugged Sessions in 2012, an intimate acoustic set that highlighted their songwriting craft before the group eventually dissolved.

Dual female-fronted stoner doom outfit distinguished by a gnarly, fried guitar tone and a rare willingness to mix Portuguese and English lyrics in equal measure. Their 2023 self-titled debut — six tracks including "Velho Jack," "Bruxas," and "Labirinto da Morte" — draws on classic stoner heaviness while maintaining a compact, focused sound that avoids the shapeless drift common to the genre.

Heavy/thrash metal band from Florencio Varela, Buenos Aires, Argentina, formed in 2011, featuring vocalist Brian 'Coco' Barco, guitarist Héctor Altamiranda, bassist Gabriel 'Gabilan' Martínez, and drummer Jeremías 'Jere' DAnna. They have released three studio albums: Contra la adversidad (2020), SeKthor (2022), and Introspección (2024), all recorded independently. The band recorded Introspección between August 2023 and June 2024 at La Naty Cueva Estudios in Florencio Varela and Cataldi Estudios in Buenos Aires.

Doom/sludge metal band from Mar del Plata, Argentina, formed in 2021 by Nacho Aloisi (guitar, vocals), Micaela Luca (bass, vocals), Rodrigo Jordan (guitar), and Lisandro Ordóñez (drums). Their self-titled debut album was recorded between September and November 2020 at Pretorius Homestudio in Mar del Plata and released in January 2021. The album was mixed by Micaela Luca and Ignacio Aloisi and mastered by Hernán D'Ambrosio at No Humanity Studiohome in Necochea, Argentina.

Thrash metal band from Neuquén, Argentina with Christian lyrical themes, active since 2017. Their discography includes the studio albums Guerra espiritual, Sin límites, and La sangre del cordero I, as well as the live EP En Vivo en Neuquén, Argentina - 2018, released independently in digital format in July 2018.