Deathtomusic plays sludge metal from the Limburg province of the Netherlands, active since 2016 and channeling their paradoxical name — destroying music with music — into thick, distorted compositions. Their sludge-metal approach suggests an intentional dismantling of conventional musicality through crushing weight.

Declan Beare is a doom, stoner, sludge metal, and ambient artist from Dublin, Ireland, active since 2018. The project spans a range of heavy and atmospheric styles from doom and sludge to ambient soundscapes.

Deep Down Bellow is a groove and sludge metal band from Kobarid, Slovenia, formed in 2017. The project delivers crushing groove and sludge metal from the Soca Valley.

Deerstalker is a sludge/drone doom metal band from the UK, active since 2012. They track prey through massive sludge and droning doom.

Deformus plays a hybrid of heavy, stoner, and sludge metal from 's-Hertogenbosch in North Brabant, active since 2017. Their genre-blending approach creates deformed, misshapen compositions that refuse to fit neatly into any single category — as their name implies.

Deibel is a sludge/stoner metal band from Leipzig, Germany, formed in 2023. They deliver thick, heavy grooves drenched in fuzz and sludge.

Deller plays doom/sludge metal from Taganrog on the Sea of Azov, active since 2014. Their coastal southern Russian location provides a warmer-than-typical backdrop for the genre's characteristic heaviness and slow-motion aggression.

Demande à la Poussière is a blackened sludge/post-metal band from Paris, France, formed in 2018. Their name meaning 'ask the dust,' they create heavy, blackened soundscapes.

Demon Orgy is a sludge/doom metal band from Madrid, Spain, formed in 2020. They deliver filthy, heavy sludge and doom from the Spanish capital.