Old Coffin Spirit deal in the slowest and most suffocating end of funeral doom, lacing it with black metal atmospherics to produce a sound steeped in death, darkness, and drifting spirits. Their 2015 debut, Out of the Dark...Into the Light, lays out seven tracks of cavernous, crawling misery, with song titles like "Ancient Soul" and "Nocturnal Fog" telegraphing exactly the mood they're after.

Old Throne is the one-man black metal vehicle of Fernando Count Old, a project he has driven since 2007 through a series of demos, EPs, and full-lengths steeped in anti-religious contempt and raw, uncompromising misanthropy. The 2013 album O Novo Mundo Pagão stands as a centrepiece of his catalogue, released through both the Japanese label Weird Truth Productions and domestic outlets.

Oldlands is a one-man black metal project helmed entirely by Vox Morbidus, drawing deeply on the raw, stripped-down aesthetics of 1980s and 1990s European black metal. After releasing the full-length Source of Eternal Darkness in 2019, the project matured with Oldmaster in 2023, a record structured like a vinyl side A/B split that pairs guttural and high-pitched vocals with keyboards and acoustic passages.

One Third of the Angels is a black metal duo formed by Ricardo Echeverria, also known from One Cross, and Wagner Santos, who plays in Nox Caelum and Revogar. The project surfaced in 2023 with the single "My Darkest Memory," channeling a cold, atmospheric approach rooted in the South Brazilian underground scene both members have long inhabited.

Founded in 2015 by vocalist Azi Dahaka, Opus Secretus pursues a Luciferian strand of black metal rooted in ritual atmosphere and occult doctrine. Their 2024 full-length "The Dissolution of the Flesh for the Awakening of the Luciferian Flame" was produced by Thiago Perdurabo and Azi Dahaka, with instrumentals recorded in Magé and vocals laid down at Espaço Lugar Nenhum in Rio de Janeiro.

Orbis Daemonium weave alchemy, gnosticism, and esoteric poetry into cold, atmospheric black metal, building a body of work that feels more like a grimoire than a standard discography. Across releases including "Opus Contra Naturam" (2019) and "Veil of Illusions" (2022), the quartet of Wellison Xavier, Willie Lawrence, Daniel Alcantara, and Jefferson Barbosa have carved out a consistently hermetic and uncompromising sound.

Founded in the late 1990s by Vega Salruas and Eternal Life, Ordo Natum Bamay Crom have been weaving Viking mythology into raw black metal since their early EP "Crom: God and King" (2002). Their 2019 full-length "Imperium Maximus" showcases the band's layered approach, blending tremolo-driven aggression with folk-tinged atmosphere and violin arrangements. Decades of underground perseverance have made them one of the few Brazilian acts to sustain a genuine Viking black metal vision long-term.

A duo of Sodomizer and Sancta Fêmea, Orgiastic Perversion channel raw and depressive black metal into an uncompromising catalog of transgressive imagery and suffocating atmosphere. Their output spans from the debut "Ritual de Luxúria Sob a Luz da Lua Cheia" (2015) through "Ninfomaníacas e Sádicas" (2020) and "Obsessiva Volúpia da Transgressão" (2022), each release sinking deeper into themes of desire, darkness, and anti-cosmic philosophy. The dense, lo-fi production is entirely intentional — a wall of noise that feels less recorded than summoned.

Osculum Obscenum built their reputation on ferocious black metal shot through with grindcore aggression, with their 2003 album Body Hurting Art cited by Brazilian underground historians as one of the most significant extreme metal releases the country produced in that era, alongside landmarks like INRI and Wicca. They later returned with material including Engendrum and Avances de Muerte before eventually disbanding, leaving behind a catalog regarded as visceral and uncompromising even by the standards of the Satanic underground.