Crushing Sludge Metal from Fort Worth.

Sullust is a sludge and post-metal band from Bethel, Connecticut, formed in 2019, combining the slow, oppressive weight of sludge with post-metal's expansive, atmosphere-driven arrangements.

Sun Black Smoke is a stoner/sludge metal band from Buffalo, New York, formed in 2013, built on massive, haze-soaked riffs and a thick, abrasive low-end that reflects the industrial grit of their home city.

Sun King Ba is a Chicago, Illinois sludge/stoner metal act formed in 2022, stacking downtuned, smoke-thick riffs over a punishing rhythmic foundation drawn from the city's heavy underground scene.

Sun Rot is a sludge/doom metal band from Tempe, Arizona, formed in 2019, channeling the punishing heat and decay of the desert Southwest into slow, oppressive riffing and corrosive low-end tone.

Sun Splitter is a Chicago, Illinois sludge/doom and industrial noise outfit formed in 2010 in the Bridgeport neighborhood, fusing the crushing weight of sludge metal with abrasive industrial textures and noise elements.

Sunburster is a Philadelphia, Pennsylvania sludge/doom/stoner metal band formed in 2012, combining the grime and aggression of sludge with the slow, narcotic groove of stoner and doom.

Sundering Titan is a black/sludge metal and crust punk band from Great Falls, Montana, formed in 2014, combining the nihilistic fury of crust punk with the corrosive heaviness of black and sludge metal.

Suffocating Psychedelic Doom / Sludge Metal from Austin.

Sunrot are a sludge/drone/doom metal band from northern New Jersey, formed in 2014, known for punishing walls of noise that combine the slow-motion heaviness of doom with the abrasive corrosiveness of drone and the filth-soaked aggression of sludge.

Suns of the Morning Star are a blackened sludge and progressive metal band from Boca Raton, Florida, formed in 2012, weaving dense sludge heaviness with post-metal ambience and black metal atmosphere into expansive, darkly textured compositions.

Superjoint — formerly Superjoint Ritual — are a New Orleans, Louisiana sludge metal and crossover thrash band that reformed in 2016, co-founded by Pantera and Down vocalist Philip Anselmo, combining the grinding aggression of crossover thrash with the thick, swampy heaviness of the New Orleans sludge tradition.

Supervoid is a Pittsburgh, Pennsylvania band formed in 2012, blending sludge and stoner metal with psychedelic textures to produce dense, slow-burning soundscapes that reflect the gritty character of the city's underground scene.

Surus is a post-metal and sludge metal band from Tulsa, Oklahoma, formed in 2023, crafting slow, crushing soundscapes that blend atmospheric texture with the heavy, feedback-laden weight of the sludge tradition.

Sutter Cane is a Philadelphia, Pennsylvania groove and thrash metal band formed in 2012, named after the fictional horror author in John Carpenter's film, blending punishing groove rhythms with thrash metal intensity.