Mufa is a São Paulo extreme metal act that draws equally from death metal brutality and hardcore aggression, keeping a stable lineup since 2011 while channeling outrage at social rot into relentlessly violent music. Their 2015 debut full-length "Brutality Show", recorded at Magma Studio, showcases their genre-defying blend with tracks like "NarcoViolence" and "Disposable Human Race".

Murder Worship plays uncompromising death metal rooted in violence, anti-Christian themes, and a relentless appetite for brutality. Their catalogue includes the 2013 debut "Hate Celebration", the 2020 EP "Bleeding the Coward", and the 2021 full-length "Doomsday", the latter reissued in 2024 with live bonus tracks from Festival Marreco.

Formed by guitarist Jazz Kaipora and vocalist Claudia Franco, Murderess weave together death, black, and doom metal with lyrics centered on female resistance and historical figures erased by official narratives — including a track dedicated to Soviet WWII sniper Lyudmila Pavlichenko. The band released the EP "Time to Kill" in 2024 and followed it with "Time to Kill: Volume II" via Electric Funeral Records, quickly earning attention beyond the Brasília underground.

A three-piece funeral doom outfit recorded at GoreZone Studios in Belém, My Funeral Dream released the EP A Beleza De Um Funeral and the album Introspectivo in early 2017, both sung in Portuguese. Their sound leans heavily on suffocating tempos and cavernous vocals, placing them firmly in the tradition of European funeral doom while maintaining a distinctly raw, underground Brazilian aesthetic.

A one-man industrial deathgrind project, MySilentGod released Mundo Herege in 2019 — an 18-track assault of mechanized brutality with anti-religious Portuguese-language lyrics spanning tracks like Jesus Ateu and Demônio. The project fuses the abrasive density of grindcore with industrial texture, occupying a confrontational niche in the broader extreme metal underground.

Formed in Salvador, Bahia, Brazil in 1989, Mystifier are one of the foundational acts of the Brazilian black metal underground. Their debut full-length Wicca (1992) and its follow-up Göetia (1993) established a ferocious and malignant sound steeped in occultism and anti-Christian themes, earning them widespread recognition in the international underground. After an eighteen-year gap between studio albums, Protogoni Mavri Magiki Dynasteia (2019) on Season of Mist marked a powerful return.

Formed in Salvador, Bahia in 1989 by Beelzeebubth, Lucifuge Rofocale, Behemoth, and Meugninousouan, Mystifier are one of the foundational names in the Brazilian extreme underground, blending primitive black metal brutality with a dark, ceremonial atmosphere and restrained synth use. Their run of records — Wicca (1992), Göetia (1993), The World Is So Good That Who Made It Does Not Live Here (1996), and Profanus (2001) — established them as the most significant black metal band from the northeast of the country.

Mórbida Exhumación is a death metal band from Ushuaia, Tierra del Fuego — one of the southernmost active metal acts in the world. The band released the EP Liberando el Dolor in 2020, followed by the full-length Alteracion Morbosa de la Personalidad in October 2021, a ten-track record with lyrics drawing on horror and gore themes.

A raw black metal cult drawing directly from the second wave Scandinavian tradition, Mørkalv features members with roots in other extreme underground acts including Necroholocaust and Blood Sorcery. Their 2023 debut album "An Ancient Cult to the Aesir" delivers eight tracks built on Nordic themes, cold-blooded riffs, and an organic, deliberately rudimentary production that suits the band's uncompromising aesthetic.