Marianas Rest is a melodic doom/death metal band from Kotka, Finland, formed in 2016. They craft crushing doom-death compositions steeped in oppressive heaviness.

Marja Üldine is a heavy/doom/folk metal, various band from Saint Petersburg, Russia, formed in 2022. They weave folk traditions into heavy metal compositions.

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.

A one-man progressive melodic doom metal project from Zonhoven in Limburg, founded in 2018, Marrowlands draws on the atmospheric and melodic traditions of Draconian, Opeth, Trees of Eternity, and My Dying Bride to craft entirely instrumental compositions. The project remains unsigned and independent, releasing material directly through Bandcamp.

Marrowrend is a stoner/doom metal act from Saint Petersburg, active since 2021. The band delivers bone-crushing, marrow-extracting doom from Russia's cultural capital.

Mars is a stoner and doom metal band from Mars, France, formed in 2024. They channel crushing stoner doom from their aptly named hometown.

Marthe is a heavy and doom metal band from Bologna, Italy, formed in 2019. They channel crushing heavy doom from the Emilian capital.

Martyrdoom is a death/doom metal band from Warsaw, Poland, formed in 2017. They craft crushing doom-death compositions steeped in oppressive heaviness.

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.