Against Death was a black/death metal band from Recife, Pernambuco, Brazil, active from 2010 until their split-up. Operating out of the Northeastern Brazilian underground scene, the band combined the rawness of South American black metal with death metal brutality. They maintained a Bandcamp presence under the name "Life Against Death For Fucks Sake," reflecting the irreverent spirit common to the region's extreme metal underground.

Against Humanity is a Brazilian atmospheric black metal project formed in 2017, crafting music described as bleak, depressive, and hateful in atmosphere. Their album "Lost" — recorded in 2011 and released in 2013 under an earlier incarnation — features tracks exploring wounds, inner voices, and existential burden, rooted in the misanthropic tradition of depressive black metal. The project sits within Brazil's sprawling underground extreme metal scene, channeling cold ambience and desolate riffing.

Agalarieth are a black metal band from Valdivia, Chile, who released the demo "Dark Path Begins" in 2011, recorded at Black King studio in Valdivia and issued as a pro-CDR limited to 300 copies. The four-track demo was also distributed on cassette through labels including Anti Cosmic Productions and Depressive Illusions Records.

Agape is a black/doom metal band from Rio de Janeiro, Brazil, formed in 2020. Drawing on themes of the human mind, inner darkness, and resilience, the band merges the slow, crushing weight of doom metal with the cold, abrasive textures of black metal. They are part of Rio de Janeiro's active underground extreme metal scene, operating independently.

Agaurez is a black metal band from Belo Horizonte, Brazil, originally formed in 1998 and reconstituted in 2013 after a lengthy hiatus. Their debut "Un-Virtue-Vitae" (2002) on Demise Records represented traditional keyboard-driven black metal, but their second album "The Five Sigils" — released on the prestigious Brazilian label Cogumelo Records — marked a heavier evolution incorporating death and thrash metal elements. Thematically rooted in rational anti-Christian ideology, Nietzsche, and occultism, the band is one of Belo Horizonte's more enduring extreme metal acts.

Agdron was a death metal band from São Paulo, Brazil, active from 2022 until their split-up. During their brief existence they released three recordings — "Embrace the Unmaking," "Manifest the Veiled," and "Acknowledge the Cult" — each title suggesting a conceptually cohesive occult or cosmic death metal approach. The band maintained a presence under the Instagram handle @cultofagdron, underscoring the ritualistic angle of their project.

Age Nor Defields is a crossover thrash quintet from Mongaguá, on the São Paulo state coast of Brazil, fusing thrash metal with hardcore punk energy and grindcore experimentation. Their album "Mongahell" is a 25-minute barrage of politically charged, anti-fascist material delivered in Portuguese, mixing protest and class consciousness with acid humor and absurdist provocation. Reviewers have noted their earnest, exuberant approach and the Zappa-esque tendency to wrap pointed social commentary in comedic delivery.

Age of Artemis is a progressive power metal band from Brasília, Brazil, widely regarded as one of the finest acts in the Brazilian power metal scene. Their debut album "Overcoming Limits" (2011) was produced by Edu Falaschi of Angra, and their third full-length "Monomyth" (2019) secured international distribution in Japan through King Records, cementing their reputation. The band performed at Rock in Rio's 30th anniversary edition in 2015 and have built a catalog distinguished by melodic sophistication and ambitious compositional scope.

Age of Fear is a heavy metal band from Paulo Afonso, in the interior of Bahia, Brazil, formed in 2014. One of the few metal acts from this small city in the São Francisco Valley, the band operates in the classic heavy metal tradition and has released material including a self-titled EP, a demo "Echoes of a Lost Age," and the album "Born in Darkness." Their existence reflects the spread of Brazil's metal underground well beyond the major urban centers of São Paulo and Rio de Janeiro.