Asterias is a stoner/sludge metal band from San Juan, Argentina, featuring Diego Oliver and Juan Montané sharing guitar and bass duties alongside Rodrigo Cardozo on guitar and Pedro Romano on drums. The quartet released Hijo de una Tormenta in 2021, a record that channels the heavy, riff-driven energy of South American stoner rock into dense, atmospheric territory.

Bertran de Born is a drone/doom/sludge metal band from Bauru, Brazil, formed in 2015. The band released their debut demo "Malebolgia" in December 2015, an independent release listed on Encyclopaedia Metallum.

Caligo is a stoner/doom/sludge metal band from Brasília, Brazil, formed around 2012 by bassist Sandro Santos alongside musicians from other local acts including Death Slam, Terror Revolucionário, Isolate, and I.T.D. Their sound draws heavily on classic doom forebears such as Black Sabbath, Cathedral, Saint Vitus, Pentagram, and Candlemass, and some of their compositions incorporate poetry by Brazilian writer Augusto dos Anjos. The band has released a demo titled “Templo da Descrença” and the single “Monstro Manto,” and members have also contributed to the doom metal supergroup Summa.

Cienaga was a sludge metal band from Rosario, Argentina, whose lineup featured vocalist Isidro Martinez, guitarist Facundo Pereyra, bassist Luciano Dupuy, and drummer Juan Cruz Algaraña. The band recorded their self-titled debut at Sala Elefante in 2017, though the five-track album was not released until 2023, making it a posthumous document of their dense, slow-burning sound.

Consecuencias is a death/sludge and hardcore band from the western suburbs of Buenos Aires, Argentina, formed around 2019 by Ivann on vocals, Ezequiel on bass, Faka on drums, and xMarc on guitar. They self-recorded their Demo 2018 across various locations in the west of the city and later released the full-length Todo Abismo Calma Sus Ojos, delivering politically charged extremity with a raw, DIY ethos.

Cras is a sludge metal band from São Paulo, Brazil, formed around 2019 and known for blending sludge, doom, and hardcore influences. The band released their debut EP "Desperato" as the first installment in a planned trilogy, drawing comparisons to Brazilian underground acts and featuring guest appearances from members of Torture Squad.

El Árbol de la Horca is a Santiago-based extreme metal band that debuted in 2025 with the EP Abismo Inevitable, a five-track release combining crushing sludge doom, stoner heaviness, and bursts of grindcore intensity. The band describes their sound as slow, heavy, and miserable, punctuated by occasional injections of merciless brutality.

Electrozombies are a Santiago trio — Comegato on guitar and vocals, Marcela Z on fuzz bass, and Paola Z on drums — playing a down-tuned blend of old-school death metal, sludge, and crust. Their discography includes the 2013 full-length Skull of Chaos and the 2024 album Ancestral Terror, with the band drawing conceptual inspiration from consumerism, electrification, and slow, putrid heaviness.

Erasy is a sludge/stoner/doom metal band from Feira de Santana, Bahia, Brazil, drawing inspiration from Black Sabbath and the slow, heavy end of the metal spectrum. The band has released three studio albums — The Valley of Dying Stars (2016), Under the Moonlight (2018), and Some Nice Flowers (2020) — through Dopesmoke Heavy Music Productions, and has performed at regional festivals including the Dopesmoke Festival.