Bend, Oregon's Londor push sludge metal into experimental terrain, wrapping dissonance and punishing weight in unpredictable structural choices since forming in 2024.

Lord Dying formed in Portland, Oregon in 2010 and quickly established themselves in the sludge and doom metal underground, signing to Relapse Records for their debut Summon the Faithless (2013). Subsequent albums Poisoned Altars (2015) and Mysterium Tremendum (2019) expanded their palette to include progressive and psychedelic elements, with Kerrang! describing the latter as a prog-metal masterpiece. Their 2023 album Clandestine Transcendence further developed their increasingly ambitious approach, cementing their place among the Pacific Northwest's most creatively restless heavy bands.

Oklahoma City's Los Hijos del Diablo have spent nearly two decades channeling the Devil's blues into smothering sludge and doom metal built for long, punishing nights.

Fort Worth sludge trio that went on a long hiatus then reunited. Features a guest vocal from Craig Welsh of legendary Texas hardcore act Brutal Juice.

Pittsburgh's Lycosa have been building their venomous hybrid of sludge, thrash, and death metal since 2012, channeling the city's industrial grit into something punishing and groove-locked. Few bands make filth sound this methodical.