Rockville, Connecticut's Cable underwent a dramatic stylistic transformation over their long career — from metalcore and hardcore beginnings in 1994 through to atmospheric sludge metal — earning placements on Hydra Head Records compilations and an Eyehategod tribute record.

A sludge and doom outfit from Dover, New Hampshire, Cactus Hag fuses southern-inflected heaviness with slow, grinding tempos and a grimy, feedback-drenched sound.

Hailing from Watertown, New York, Cacus plays stoner and doom metal rooted in thick, mid-paced riffing and a hazy, amplifier-worshipping aesthetic.

Oakland sludge metal/grindcore/powerviolence band on Youth Attack, channeling war, hate, and anti-humanity themes through abrasive, maximally aggressive music.

Allentown, Pennsylvania's Call Off Dead traffic in doom and sludge metal, stacking slow, oppressive riffs into a dense wall of sound since 2019.

Ohio-based sludge/punk hybrid that mashes the crawling heaviness of sludge metal with punk's raw, stripped-down hostility.

Atlanta instrumental sludge/post-metal duo formed in 2023, contributing to the growing Southern underground with crushing, wordless heaviness.

Saint Paul, Minnesota progressive sludge and groove metal band active since 2010, weaving horror and Norse/Viking imagery into their heavy, layered sound.

Portland, Oregon sludge metal act formed in 2022, infusing their crushing sound with playful Indiana Jones-inspired cinematic imagery.

Instrumental doom — debut is two tracks spanning 38 minutes, mastered by Proscriptor McGovern of Absu. Follow-up is a single 37-minute track.

Born as an acoustic jam project in Birmingham, Alabama in 2004, Capsized retooled into a full-volume sludge and post-metal force by 2012, appearing on Weedian's 2024 compilation.

Jonesboro, Arkansas sludge metal project spending the 2010s working through themes of hatred and inner struggle in the isolationist tradition of heavy, feedback-soaked sludge before going silent.

Long Island, New York death metal and hardcore hybrid that emerged in 2014, blending the brute force of death metal with the urgent, confrontational energy of hardcore.

Austin outfit combining the slow burn of doom with sludge metal's abrasive grit, channeling the heat and intensity of the Texas underground into bleak, feedback-drenched soundscapes.

Louisiana doom and sludge outfit from Port Allen drawing on the murky, oppressive atmosphere of the Gulf South, layering post-metal dynamics over crushed, tar-thick riffs.