Anuuruk is a death metal band from Santiago, Chile, whose music draws on Sumerian mythology, occultism, and themes of uncreation. The band's lineup includes vocalist Xul, bassist and rhythm guitarist Hiberg Urthoris, and lead guitarist Amon. They released their debut album Unspeakable Uncreation in August 2017 through Apocalyptic Productions, a Santiago-based underground death and black metal label.

Death metal band from Timóteo, Minas Gerais, active from 2018 until their split-up in 2025. They released material through the independent label Digital Yourself and built a small but dedicated following on Spotify, playing straightforward death metal rooted in the Brazilian underground tradition of their home state.

Black and death metal band from Salvador, Bahia, active from 2014, fusing black metal and death metal with crust, punk, and grindcore influences. Their 2018 album "O Grotesco e o Desespero," released on Cospe Fogo Gravações and recorded at Estúdio Ruído Rosa in Salvador, explores themes of despair, resistance, and societal decay across ten tracks. The band also released the split "Aphorism / Rabujos" and the EP "I" (2014), making them one of the more prolific underground extreme acts to emerge from northeastern Brazil.

Death metal and grindcore band from Catanduva, São Paulo, formed in 2023. Combining the blastbeat-driven brutality of grindcore with the riff density of death metal, they operate within Brazil's long-established tradition of extreme underground metal. The band self-releases their material on Bandcamp.

Apokatastase is a thrash/death metal band from São Paulo, Brazil, active since 2022. Taking their name from the theological concept of universal restoration, the band operates within the city's well-established extreme metal underground, delivering aggressive, riff-driven material at the intersection of thrash and death metal.

Apokrisis is a progressive death/thrash metal band from São Paulo, Brazil, whose name derives from the ancient Greek word for "revelation." Formed around 2016 after years of earlier development, they released the debut album "Misanthropy" in 2020 — produced by Michel Villares and co-produced by Ricky Franco — drawing on influences from Slayer, Death, Pantera, and Dream Theater while exploring psychological and nihilistic lyrical themes.

Apophizys is a death metal band from Passo Fundo, Rio Grande do Sul, Brazil, originally operating under the name Slaughter Fleshcult before reforming with a new identity and releasing their debut full-length Into the Chaos in 2015. The album featured drummer Luana Dametto, who would go on to international recognition with Nervosa and Crypta, and the record established the band's blunt, gore-drenched approach to death metal. They continue to perform in the Rio Grande do Sul underground circuit.

Apóstasis is a melodic black/death metal band from Brasília, Brazil, whose 2018 self-titled album draws on Nietzschean philosophy and misanthropy as lyrical touchstones. Their sound fuses the melodic sweep of Scandinavian black metal with death metal aggression, reflecting the increasingly ambitious underground scene in Brazil's federal capital. The band remains independent and active.

Architeuthis Dux is a death-grind band from Mar del Plata, Argentina, featuring Chela on vocals, Blass on guitar, Pitu on bass, and Joaco on drums. The band has built an extensive catalog of recordings, including releases such as "Apotheosis of the Guillotine", "Acropolis", "Hecatomb", and a split with Indonesian band Jeritan. Named after the scientific designation for the giant squid, they are one of the most prolific acts in the Argentine extreme metal underground.