Abyss of Animas is a depressive black metal project from Buenos Aires, Argentina, active since 2020. The project has released two recordings, "Beautiful and Hateful" and "Memory Resembles Emptiness," both available through Bandcamp. Their sound sits within the introspective, lo-fi end of the Argentine black metal underground.

Abyssal was a thrash metal band from Oliveira, Minas Gerais, Brazil, active from the early 2000s until their split-up. An independent act from the interior of Minas Gerais, they played in the classic Brazilian thrash tradition before disbanding with minimal widely documented releases.

Abyssal Agony was a death metal band from Conselheiro Lafaiete, Minas Gerais, Brazil, active briefly in 2022 before splitting up. The band released material including the track "Reborn in Blasphemy" and the album "Torturing Soul," delivering raw, uncompromising death metal rooted in the underground traditions of the Minas Gerais scene.

Abyssal Forest is a pagan atmospheric black metal band from Palmas, Tocantins, Brazil, formed in 2017 and signed to Visionaire Records. Their debut album "Além da Grande Vasta Floresta" (Beyond the Great Vast Forest) weaves nature-worshipping themes and anti-monotheist philosophy into dense, melodic black metal, featuring founding members Skullkarved and Reinkaos alongside a full rhythm section assembled by 2019.

Abyssal Pain is a depressive black metal and ambient project from Angra dos Reis, Rio de Janeiro, Brazil, exploring themes of negativity, pessimism, and emotional dissolution. The project has released a substantial run of albums — including "Der Nagel im Sarg," "Frio Esterilizante," "Desvanecer," and "Catarse" — and contributed to the DSBM Brazil Vol. II compilation, situating itself firmly within the Brazilian DSBM underground.

Abyssall was a one-man melodic death metal project from Londrina, Paraná, Brazil, conceived and executed entirely by multi-instrumentalist Bruno Eduardo. Their 2022 debut EP "Victory Can Wait Forever" delivered five tracks wrestling with themes of technology, mass control, and guarded optimism, blending melodic death metal structure with introspective lyrical content before the project ceased activity.

Abütre is a black metal band from Porto Alegre, Rio Grande do Sul, Brazil, formed in 2024 and part of the state's active underground extreme metal scene. A recently formed act with minimal documented output, they operate within the raw, underground tradition of Brazilian black metal.

Acacia Caven is a black metal duo from Córdoba, Argentina, formed in 2021. The band released their self-titled debut EP in July 2021, a five-track digital release spanning raw black metal and post-black metal textures with tracks including "Asfixia," "Vacío," and "Vidrio." Their music also appears on the label GSP Bandcamp, widening their reach within the Argentine underground scene.

Accipiter is a heavy metal band from São Paulo, Brazil, formed in 2014 and active in the city's underground traditional metal scene. With a minimal public profile, the band operates independently, carrying forward the São Paulo heavy metal tradition that has produced some of Brazil's most storied acts.