Minneapolis doom/sludge band Circadian Ritual trade in slow, punishing dirges built on massive riffs and grinding repetition. Their music carries the cold, gray weight of a Minnesota winter stretched into sound.

Bloomington, Indiana sludge metal project Civilized Worm distill the genre's essential combination of down-tuned heaviness and hypnotic repetition into slow-moving sonic punishment. Their music is deliberately ugly and quietly compelling.

New Jersey's Clamfight deal in swampy, heavy-as-sin sludge and stoner metal, built on massive downtuned riffs and slow-burning grooves. Their records carry the weight of a collapsing building and move at roughly the same pace.

Colorado Springs trio Clarion Void inhabit a murky space between black metal, death metal, and sludge, where oppressive atmosphere and dissonant heaviness collide. Their music is dense and suffocating, shaped by the high-altitude bleakness of their Rocky Mountain surroundings.

Cincinnati's Clouded merge grindcore's speed with sludge metal's suffocating weight, drawing from a web of overlapping Ohio underground projects. Their early releases, including a 2016 split with Ethicist, showcase a band comfortable in filth.

Long Beach, California's Cloven deal in funeral doom and sludge metal, building songs around glacially slow tempos and crushing heaviness. Active since 2015, they've released material through Midnite Collective, including their acclaimed full-length Blackened Wings.

Muncie, Indiana's Cocaine Culture are a genre-defying chaos engine drawing from black, death, doom, sludge, and alternative metal in equal and unsettling measure. The result is a dense, disorienting sound that refuses easy categorization.

Thibodaux, Louisiana sludge metal band Cocaine Sermon channel the swampy, oppressive heaviness that southern sludge does best. Their music is thick with bayou rot and the kind of slow-burning dread that the Gulf South breeds naturally.

Lincoln, Maine sludge and stoner metal band Coelacanth draw from the isolation of rural New England to craft heavy, slow-rolling music with a distinctly bleak character. Their approach is rooted in thick riffs and an unhurried, grinding pace.