Chicago's Motherless are a brand new entity formed in 2025, working in experimental doom/sludge territory that pushes against genre convention — early activity suggests an interest in texture and dissonance over conventional song structure.

Charleston, South Carolina's Mothmother smash sludge metal and grindcore into a volatile collision of punishment and noise, channeling the coastal South's heat and humidity into bursts of chaotic, caustic heaviness. Active since 2017, they are one of the more abrasive and uncompromising acts to emerge from the Lowcountry underground.

Brooklyn doom and sludge metal outfit Mountain God have been hauling monumental, slow-moving riff structures through New York City's underground since 2013, bringing an almost devotional weight to music that feels both ancient and urban. Their sound sits at the slow, heavy end of the New York metal spectrum, indebted equally to Cathedral and Eyehategod.

Milwaukee's Mountain Language occupy a noisy intersection of black metal, sludge, and raw noise, building hostile, suffocating soundscapes that draw as much from harsh noise aesthetics as from metal tradition. Formed in 2014, they are one of the more confrontational and genre-defiant acts in the Wisconsin metal underground.

Gulfport, Mississippi doom/sludge outfit Mountain of Beard have been hauling Gulf Coast heaviness into their music since 2012, layering suffocating low-end sludge with the oppressive humidity of the Deep South. Their name leans into the genre's irreverence while the music leans toward punishment.

Sci-fi doom trio built around a pedal steel guitar run through heavy effects. Albums are thematically rooted in Blade Runner, with songs named after characters from the film.

West Virginia's Mountain Sludge Revival plant their music firmly in the coalfields and hollows of the Mountain State, channeling the region's hardscrabble working-class character into punishing, feedback-drenched sludge metal. Formed in 2017 out of Montana Mines, they are one of the few metal acts to claim West Virginia's small-town underground as a home base.

Los Angeles doom and sludge metal act Mourn (not to be confused with the Tennessee project sharing the name) drag their heaviness through a thick layer of Southern California nihilism, building slow, corrosive compositions rooted in the sludge tradition. Formed in 2015, they add another bleak and unrelenting entry to LA's well-populated heavy underground.

Nashville's Mourner occupy the heaviest intersection of sludge, drone, and doom, dragging listeners through suffocating low-end frequencies and near-static tempos that feel built from the weight of the Tennessee hills.