Macacos da Manchúria is a death/doom metal project from São José dos Campos, São Paulo, Brazil, formed in 2021 by brothers Alexandre Paloschi (vocals, guitars, drum programming) and Henrique Paloschi (bass, guitars). The band's name is a tribute to victims of Unit 731, and their debut full-length "Bessa" (2022) — recorded, mixed, and mastered entirely by Alexandre Paloschi — was composed and produced in a home studio between August and December 2021.

A long-running death-black metal force from the São Paulo underground, Malediction 666 draws heavily from the Greek black metal tradition — the 2019 album "We, Demons" even features guest appearances from Necroabyssious of Varathron and Sakis Tolis of Rotting Christ. The project is largely driven by a single individual, resulting in a focused and consistent sound shaped by decades of devotion to the dark arts.

Manso Jeremías is a death/thrash metal band from Buenos Aires whose sound draws on Swedish death metal forebears such as At the Gates, Dismember, and Entombed. The band — comprising Claudio Filadoro, Martin Furia, Mariano Miranda, and Gabriel Raimondo — has released two records: DOBLEHACHA (2016) and the five-track MARABUNTA.

Mausoleum were a death/black metal outfit from São Paulo whose lyrical themes circled around paganism and occultism, a common thread running through releases spanning compilations such as "Southern Warriors Cult #1" (1999) and "War... Satanic Victory!!!" (2003). Their output also included "10 Anos de Bestial Massacre" in 2004 and "O Retorno à Batalha" in 2006, cementing a two-decade presence in the Brazilian underground before the band eventually dissolved.

Mediadhor hit the ground running with two releases in quick succession: the demo "Caminho do Arrependimento" in late 2016 and the full-length "Campos Mortais" in early 2017. Their approach fuses the grinding aggression of death metal with thrash's rhythmic momentum, giving the material a relentless, forward-charging quality.

Rooted in the South American underground, Mephistopheles play a morbid amalgam of doom, death, and black metal drawing from the same unholy lineage as Mystifier, Sarcófago, and Blasphemy. Their two early demo tapes — 'The Prophecy' and 'Black God' — were later compiled and released on CD by Voz da Morte Prod in 2018 as 'The Prophecy of Black God,' preserving eleven tracks of raw, English-language ritual extremity.

Mephitic Tomb is a raw death/black metal project steeped in the pestilential South American underground tradition, channeling blasphemous hostility through a sound informed by anti-religious and Cthulhu Mythos themes. Formed in 2024, the project draws on the volatile heritage of the region's extreme metal underground, producing tracks such as 'Cursed by Coffin Joe' and 'Leather, Chains, Hooks, Sex' with uncompromising ferocity.

Formed in Santos with a founding lineup of Marcus Vinicius on vocals, Fausto Pietro on drums, and Vinicius Guedes on guitar, Metallstein draw on old-school death metal, speed/thrash, and grindcore for a raw and uncompromising sound. The band released their self-titled debut single containing six tracks in early 2023 and have since appeared on the 'Workingclass In Roll – Brazilian Compilation' with the track 'Sonho Súbito'.

A one-person old-school death/black metal project helmed by Terror Holocausto, who handles all instruments and vocals drawing from 90s North American and Brazilian extremity. The debut EP "Before Coffins, Hells and Nightmares" (2021), released through Cianeto Discos, was recorded at Terror Holocausto's own home studio in Bahia and captures a raw, cavernous sound rooted firmly in the early death/black tradition.