Mares of Diomedes is a doom and sludge metal band from Belfast, Northern Ireland, formed in 2015. Named after the man-eating horses of Greek mythology, they deliver crushing doom-sludge.

Marod is an atmospheric sludge/post-metal band from Leipzig, Germany, whose motto "Marod ist unsere Freiheit. Marod oder tot" signals their uncompromising approach. Their discography of 7-inches, EPs, and the LP "Kulik" delivers crushing post-metal heaviness with a punk-rooted DIY ethos.

Blood Fetish is a goregrind project from the university city of Szeged, formed in 2022. The project delivers short, grotesque bursts of extreme music rooted in the most visceral traditions of grindcore.

Maruntuka is a black/sludge metal act from Warsaw, formed in 2022. The band merges the cold atmosphere of black metal with the crushing weight of sludge from the Polish capital.

A groove metal and metalcore act from Budapest, Bloodiest has been delivering rhythmically driven aggression since 2011. The band pairs heavy grooves with metalcore breakdowns.

Masamsed is a sludge and post-metal band from Lyon, France, formed in 2020. They blend crushing sludge with post-metal's atmospheric expansiveness.

Mashu is a drone doom and sludge metal band from Salamanca, Spain, formed in 2021. They craft crushing, ultra-slow compositions built on droning repetition and sludge metal's abrasive weight.

Mass Culture is a sludge and post-metal band from Athens, Greece, formed in 2012. They blend crushing sludge with post-metal's atmospheric dynamics from the Greek capital.

Massive Thunderfuck was a sludge/doom/death metal band from the Neuss/Düsseldorf area of Germany, active from 2013 until their demise. Their 2019 album "Serpent Worship" delivered walls of down-tuned guitars and demonic, weed-filled shouts of hell across a blend of sludge, doom, and black metal.