Decaen is a stoner/doom/sludge metal project conceived by Bosnian-born guitarist and vocalist Haris Dekanovic, now based in Germany, who draws on blues and grunge as foundation for heavy riff-based compositions. The 2022 debut No Rest for the Slaves — seven tracks including Forest Demon and Cosmic Stone — marks the project's first official release under his solo banner.

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 Space Mask is a stoner metal band from Roanne, France, formed in 2020. They deliver cosmic stoner grooves from the Loire region.

Deepshow is a stoner metal/rock band from Mons in Wallonia, active since 2011 and delivering fuzz-heavy, groove-laden compositions rooted in the Desert Sessions school of heavy psych. Their sound channels the swagger and swagger of classic stoner rock through a Belgian lens.

Deerslayer is a doom and stoner metal band from Arjang, Sweden, formed in 2014. The project delivers heavy doom and stoner riffs from the Varmland region.

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.

Dekonstruktor plays stoner/doom metal from Moscow, active since 2014 and systematically dismantling musical structures through heavy, fuzz-laden compositions. Their German-Russian hybrid name evokes deliberate disassembly — taking heaviness apart to rebuild it heavier.

Demon Seizure is a groove and stoner metal band from Sweden, formed in 2023. The project blends heavy groove riffing with stoner metal.