Muireterium builds atmospheric black metal that drifts between cosmic and natural imagery, weaving soaring synths and coiling guitar textures into vast, meditative soundscapes. The project released the nature-worshipping "Ode to the Nature" in 2017 and followed it with the space-themed "The Eternity Aura" in 2018, both issued through Depressive Illusions Records.

Mulmeyun is a Santiago-based extreme metal project blending symphonic, black, and gothic doom elements, with the project's first release, the two-track EP A Tale of Love, appearing in September 2018. The band uses a Vocaloid voice bank as vocalist, an unusual choice within the Chilean metal underground, and has released a steady stream of material including Struggle (2020) and An Ancient Calling (2021). Thematically, the project frames suffering and sacrifice as necessary responses to modern nihilism and existential despair.

Municion is a black/thrash metal band from Santa Fe, Argentina who built a live reputation sharing stages with international acts including Aura Noir, Mystifier, and Tsjuder. The band released the EP "Black, Speed & Evil" in 2015 through Execracion Distro before issuing their debut full-length "Fukk Off In Hell" in 2021 via Alkolik Holocaust Records.

Munkill is an extreme metal band from San Carlos de Bariloche, Río Negro, whose founding members include vocalist/guitarist Demogorgon Malignum, bassist Malice Misanthropic, and drummer Sebastian Ortega. Their debut album "Suicide Or Homicide" was recorded at Insight Producciones and released in September 2012, followed by "Ambition and Destruction" in 2020, recorded in quarantine and mixed by Agustin Ortega at Demogorgon Malignum Producciones.

Formed by guitarist and vocalist Jean Nightbreaker, Murdeath delivered tightly wound thrash and speed metal with a NWOBHM edge across releases like the 2014 EP "Apocalipse Sangrento" and the 2016 full-length "Sob o Signo...". The Curitiba outfit announced a hiatus in late 2022 following a final show with Skull Fist in early 2023.

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.

Murdock deal in slow, heavy riffs steeped in a 1970s Black Sabbath–rooted stoner doom tradition, with a psychedelic edge that the band describes as exploring dark earth rather than outer space. Their 2021 EP "Entre Tigres e Lobos" showcases the quartet's knack for mood-saturated songwriting, and the track "Olhos Sinistros" — a lo-fi, crushing meditation on a bloodthirsty mythical creature — has become a fan favourite.

A supergroup side project drawing members from Sepultura, Threat, and Nitrominds, Musica Diablo united Sepultura frontman Derrick Green with guitarists André NM and André Curci for a pure old-school crossover thrash assault. Their self-titled debut from 2010 packs eleven tracks of raw, São Paulo–forged aggression, produced by Rafael Ramos; the band dissolved the following year after Green refocused on Sepultura.