Trauerkult is a post-black metal project from Germany, formed in 2019. Their name meaning "cult of mourning," they explore the atmospheric and emotional dimensions of post-black metal.

Traumatic Voyage is an avant-garde/progressive death/black metal band from Munich, Germany, active since 1992. With over three decades of boundary-pushing extreme metal, they are among the most veteran avant-garde acts in the German scene.

Trautonist is a post-black metal band from Koblenz, Germany, formed in 2016. They explore atmospheric, emotionally charged post-black metal from the Rhine-Moselle confluence.

Atmospheric black/blackgaze project from Brest, Belarus, founded in 2016 and built around the combination of atmospheric synthesizers, guitar, and field recordings. Their extensive catalog on Bandcamp—spanning albums like The Old Fortress, Kalevala, and Sempervirens—documents a project in constant motion, drawing from nature, mythology, and personal grief. The name, a deliberate misspelling of 'trauma,' gives their emotional and textural extremity a specifically named anchor.

Tre Pistoni is an atmospheric black metal band from Ostia near Rome, formed in 2025. Their Italian name, meaning 'three pistons,' adds an industrial edge to their atmospheric black metal from the Roman coast.

Treacherous from Lyon deliver symphonic black and death metal with the betrayal and deception their name demands since 2013. Over a decade of treasonous compositions from France's second city has combined orchestral grandeur with extreme metal aggression.

Treblinka formed near Stockholm, Sweden in 1987 as the founding vehicle for Johan Edlund, playing raw black/death metal under pseudonyms and releasing the single "Severe Abomination" in 1989. The band recorded material for an album during this period before Edlund renamed the project Tiamat in advance of their debut Sumerian Cry (1990), which incorporated reworked Treblinka compositions. As a historical entity, Treblinka represents the earliest phase of what would become one of Scandinavia's most stylistically adventurous metal bands, operating in the primitive intersection of black and death metal that defined the underground at the close of the 1980s.

Trebuchet is an epic black/heavy metal band from Odense, Denmark, formed in 2012. Named after the medieval siege weapon, they deliver epic, grandiose metal.

Tremendum conjure black metal from an undisclosed German location, their Latin name — meaning 'that which inspires awe and dread' — capturing the numinous terror at the heart of their sound since 2018. Their anonymous approach heightens the mysterious, overwhelming atmosphere of their compositions.