Templa Ardentes from Aarhus push the boundaries of experimental black metal under a Latin name meaning 'burning temples' since 2014. A decade of activity from Denmark's second city has produced avant-garde compositions that deconstruct and reassemble black metal conventions.

Tevana3 is an experimental folk metal project from Helsinki, Finland, formed in 2024. They push folk metal's boundaries with experimental approaches.

ThanatoΘ is an experimental black metal band from Athens, active since 1995. As one of the longest-running experimental black metal projects in Greece, their three decades of activity have seen them push the genre's boundaries from the cradle of Western civilization.

The Brightly Shining Sea is an experimental/progressive metal band from Athens, formed in 2024. Their luminous, maritime name sets the tone for progressive metal that explores atmospheric and experimental territory.

Theatruum is an experimental black metal project from Italy, formed in 2012. They push black metal into unconventional territory with avant-garde structures and theatrical intensity.

Tony Tears is a doom metal/progressive rock/experimental artist from Genoa, active since 1988. With nearly four decades of activity, he is one of the most enduring figures in Italian underground doom and experimental music.

Toul en Ihuern from Brest evolved from dark ambient and experimental origins into depressive black metal and ambient, their Breton name — meaning 'all in hell' — channeling the damnation of Finistère since 2018. Their Land's End Breton setting provides an apt backdrop for their hellish soundscapes.

Triangle Face is an experimental death metal band from Cambridge, formed in 2021. Their music pushes death metal conventions into experimental territory with unconventional compositions from the historic university city.

Truckdriver is a sludge and stoner metal band from Stoke-on-Trent, England, formed in 2013. They combine experimental textures with crushing sludge riffs and thick, abrasive stoner grooves.