Magzilla was a doom, stoner, and sludge metal band from São Paulo, Brazil, active from 2013 until splitting up in 2017. The quartet — featuring Guilherme Foresti on vocals and guitar, Pedro Alves on guitar, Joe Borges on bass, and Leandro Furini on drums — released two records: The Oath in March 2016 and a self-titled album in July 2017.

Massacre em Alphaville are a crust and sludge metal band from São Paulo who have been grinding out politically and environmentally charged material since the early 2000s. Their 2009 mini-CD Vacilou na Quebrada, Dorme na Vala and the 2015 full-length Estilhaços de Ilusão showcase a raw, communal approach built around multiple vocalists and a thick, feedback-drenched sound rooted in the city's underground hardcore scene.

Monster Coyote were a power trio who built a following in the South American stoner/sludge underground with their debut album The Howling (2012) and the follow-up Neckbreaker (2015), the latter earning positive notices beyond the region. Active until around 2018, the band performed at major Brazilian festivals including Festival DoSol and toured across South America before splitting up.

Noth is a solo project by the multi-instrumentalist known as Niili, who started in raw black metal territory with vegetarian and environmental themes before pivoting toward heavier sludge, doom, and noise textures. The 2022 EP Noth Is Nothing showcases that transition, trading primitive aggression for suffocating weight and an obsession with nothingness and psychological collapse.

Orate are a stoner/grunge outfit from Santiago, Chile who have been active since 2004, drawing on grunge, indie rock, and stoner influences in their songwriting. They released a self-titled debut in 2004 and returned over a decade later with El Ave Madrina in 2017, an eight-track album that leans into hazy, groove-driven rock with Spanish-language lyrics.

Orate are a stoner/grunge outfit from Santiago, Chile who have been active since 2004, drawing on grunge, indie rock, and stoner influences in their songwriting. They released a self-titled debut in 2004 and returned over a decade later with El Ave Madrina in 2017, an eight-track album that leans into hazy, groove-driven rock with Spanish-language lyrics.

Pankar are a stoner/sludge metal band from Viña del Mar, Valparaíso, Chile, formed in 2014 and active as an independent act. Their lyrical themes draw on Mapuche philosophy and the cultural resistance of indigenous peoples, setting them apart from more conventional stoner rock subject matter.

Pannaural is a Buenos Aires-based project blending sludge metal, hardcore, grindcore, and math metal into a dense, eclectic sound. Their 2017 debut album Monocroma, composed and recorded at home between January and October 2017 and handled entirely by Mace Mazek, drew comparisons to Cult of Luna filtered through a grindcore lens.

Doom/sludge metal band from Mar del Plata, Argentina, formed in 2021 by Nacho Aloisi (guitar, vocals), Micaela Luca (bass, vocals), Rodrigo Jordan (guitar), and Lisandro Ordóñez (drums). Their self-titled debut album was recorded between September and November 2020 at Pretorius Homestudio in Mar del Plata and released in January 2021. The album was mixed by Micaela Luca and Ignacio Aloisi and mastered by Hernán D'Ambrosio at No Humanity Studiohome in Necochea, Argentina.