Tusk is a doom and sludge metal band from Indianapolis, Indiana, formed in 2009, delivering slow, mammoth riffs soaked in distortion and rooted in the heaviest end of the sludge-doom spectrum.

Tusko is a sludge and groove metal band from Canton, Ohio, formed in 2015, melding the lurching heaviness of sludge with groove metal's infectious rhythmic punch.

Twin Lords is a grindcore and sludge metal band from Ithaca, New York, formed in 2012, merging the short, brutal blasts of grindcore with the thick, lurching weight of sludge metal into a punishing hybrid sound.

Twin Mammoth is a sludge metal band from Rockford, Illinois, formed in 2023, channeling the heavy, distortion-saturated sound of the Midwest underground into slow, crushing riff-driven compositions.

Twisted Dream is a Florida hardcore and sludge metal band formed in 2018, merging the intensity and aggression of hardcore punk with the slow, oppressive weight of sludge metal into a raw and volatile sound.

Two Minutes Hate is a sludge and stoner metal band from Rochester, New York, formed in 2022, channeling the dense, distortion-heavy sound of sludge metal alongside the grooving psychedelic undertones of stoner rock.

Two Tons is a doom and sludge metal band from Cleveland, Ohio, formed in 2025, emerging from a city with deep roots in underground heavy music to deliver slow, crushing compositions that draw equally from funeral doom and sludge traditions.

Minnesota's Ultimate Dai Satan have been warping progressive metal and sludge into something ponderously heavy and structurally unpredictable since 2020. Their music moves like a slow-motion collapse — dense, deliberate, and strangely compelling.

UltraMantis Black is a hardcore band formed in 2014 by professional wrestler and musician UltraMantis Black alongside members of noise-rock group Pissed Jeans. The band's debut self-titled EP was recorded that same year and released on Sub Pop, combining grindcore intensity with hardcore punk aggression. Two subsequent full-lengths on Relapse Records continued the project, which has paired physical showmanship with explicitly political themes around animal rights and environmental activism.