Trouble formed in Aurora, Illinois in 1979 and are widely recognized as one of the founding acts of American doom metal, often grouped alongside Candlemass, Pentagram, and Saint Vitus. Their first two albums, Psalm 9 (1984) and The Skull (1985), are landmark recordings that grafted Black Sabbath's heaviness onto a spiritual lyrical framework. The band signed to Rick Rubin's Def American label for their 1990 self-titled album and continued recording across eight studio releases.

Portland, Oregon psychedelic doom/sludge metal band active since 2012, layering crushing low-end weight with hazy, hallucinatory atmospheres in the Pacific Northwest tradition of slow and heavy music.

Tacoma, Washington drone/doom/post-metal duo active since 2014, sculpting monolithic, slowly evolving soundscapes from feedback and repetition in the tradition of the Pacific Northwest's most extreme slow music.

San Diego, California death/doom metal band formed in 2023, merging the sepulchral atmosphere and mournful pacing of doom with the brutality of death metal in the style of the genre's earliest practitioners.

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Turais is a Chicago, Illinois melodic death-doom band formed in 2023, named after the star in the constellation Carina and weaving together mournful melodies with the crushing weight of death metal.

Turkey Vulture is a stoner-doom band from Milford, Connecticut, formed in 2019, combining the hazy psychedelia of stoner metal with the funeral pace and weight of doom.

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.

Twin Scar is a black/doom metal band from Cincinnati, Ohio, formed in 2025, combining the icy malevolence of black metal with the glacial, despairing tempos of doom metal into a dark and suffocating sound.