Doom and sludge metal band from Trondheim, Norway, active since 2023 and channeling undead-themed heaviness. Their sound combines doom metal's glacial pace with sludge's abrasive textures from central Norway.

Sludge metal band from Toulouse, France, painting oppressive sonic landscapes beneath leaden skies since 2020. Their sound channels the weight and texture of sludge metal through slow, crushing compositions.

Sludge, drone, and doom metal quartet from Oxford, England, active since 2010 with releases including Anhedonia, Narwhal, and a split with Bismuth. Their crushingly slow sound has made them a cornerstone of the Oxford heavy music scene.

Drone and doom metal band from Liverpool, England, evolving from earlier sludge-doom toward a more drone-focused approach since 2018. Their sonic evolution reflects a deepening commitment to the slowest, heaviest extremes of metal.

Ungula is a sludge/doom metal band from Yekaterinburg, Russia, built on an unconventional foundation of two distorted basses and mad synths played by their six-member collective. The project's experimental approach to sludge and doom sets them apart from the traditional guitar-driven template.

Unhealer is a sludge/post-metal band from Sweden's Dalarna region, active since 2012 and trafficking in heavy, atmospheric compositions. The project draws on the pastoral isolation of central Sweden's forested landscape.

Unholy Slough is a sludge/death metal band from Komsomolsk-on-Amur in Russia's Far East, delivering what they describe as slow and primitive metal. Their discography includes the albums Greatness, Triumph, and Chthonic Ritual.

Munich-based post-metal, doom, and sludge trio whose music serves as emotional expression painted on sonic canvas, transcending genre boundaries. Their releases including the album Mother Death channel the heaviness of doom and sludge through post-metal's expansive, atmospheric framework.

Death and sludge metal band from Glasgow, Scotland, emerging in 2025 with a sound that deconstructs heavy music through the lens of death metal's brutality and sludge's crushing weight. Their Glaswegian origins place them within Scotland's increasingly vital extreme metal scene.