Reido is a Belarusian metal band from Minsk formed in 2006, progressing from apocalyptic funeral doom toward sludge doom metal with math metal rhythmics. Their 2011 album Minus Eleven explores themes of asociality, estrangement, and misanthropy across seven tracks of crushing, methodical heaviness.

Sludge/post-metal band from Moscow, Russia, active since 2010. Their Russian name, meaning 'river,' channels fluid, expansive sludge and post-metal from the Russian capital.

Sludge/doom metal band from Tomsk, Russia, active since 2010. Their long-running project delivers crushing heaviness from the Siberian university city.

London sludge and doom metal outfit formed in 2018, delivering crushing sonic weight through slow-burning heaviness and abrasive textures. Their oppressive sound channels the genre's most suffocating and cathartic impulses.

Reptiloid is a Berlin-based blackened sludge metal project formed in 2018, self-describing their sound as 'acid sludge from Berlin.' Their 2018 album Déclin delivers four tracks of experimental, corroded sludge incorporating noise, post-metal, and industrial textures.

Groove/sludge metal band from Kraków, Poland, active since 2015. Their Latin-inspired name accompanies rhythmically driven heaviness from Poland's cultural capital.

Ricard Methadone is a sludge metal/hardcore band from Clermont-Ferrand in the Auvergne region of central France, formed in 2024. Named with characteristically French irreverence, the band channels aggressive sludge from the volcanic Massif Central.

Sludge/stoner/doom metal band from Warsaw, Poland, formed in 2020. Their descriptively mammoth name accompanies crushing triple-genre heaviness from the Polish capital.

Rift Giant is a sludge/stoner metal band from Copenhagen, Denmark, formed in 2017. The band channels massive, low-tuned heaviness through sludge and stoner metal from the Copenhagen underground.