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.

Trencheard represent Liepāja's nascent extreme metal scene, unleashing blackened death metal since 2024 from Latvia's western coast. As one of the newest entries in the Baltic death metal landscape, they bring an unpolished ferocity to a region where metal is still finding its footing.

Trest channel black metal from somewhere in Germany under a name derived from Slavic languages meaning 'comfort' or 'consolation,' an ironic banner for their hostile sound since 2019. Their anonymous, location-hidden approach embodies the isolationist tradition of the genre.

Treviius is a symphonic black metal band from Rome, active since 2005. With two decades of activity, they are one of the more established symphonic black metal acts in the Roman metal scene.