MÜL is a funeral doom metal band from Bergen, Norway, formed in 2001. They craft glacially paced funeral doom of devastating heaviness.

Márk Meszlényi is a technical and brutal death metal artist from Budapest, Hungary, active since 2021. He crafts technically demanding death metal with surgical precision.

Más Allá de la Carne is a grindcore band from Ciudad Real, Spain, formed in 2020. Their name meaning "beyond the flesh" sets the tone for their visceral, punishing grindcore assault.

Mástil is a heavy metal and hard rock act from Madrid, blending classic metal riffing with blues-inflected hard rock grooves. Active since 2017, the band occupies the intersection of traditional metal and rock that has long been a staple of the Spanish capital's live circuit.

Mârtraum is a black metal project from Erkelenz in North Rhine-Westphalia, active since 2020. The project channels nightmare imagery into cold, atmospheric black metal.

Mädäntyneen Jumalan Silmä is a black metal band from Finland, formed in 2016. Their provocative Finnish name meaning "Eye of the Rotting God" captures their blasphemous, confrontational approach to black metal.

Mädätys is a doom and death metal band from Oulu, Finland, formed in 2022. Their Finnish name meaning "rot" or "decay" captures the putrid heaviness of their doom-death compositions.

Mälheür is a speed metal act from Vitry-en-Artois in northern France, active since 2013. The band delivers razor-sharp speed metal with the kind of urgency and raw energy that defines the genre's European underground.

A black metal project from Berlin, Märchenland — meaning 'fairytale land' — has been crafting dark, fantasy-tinged compositions since 2019. The ironic name contrasts with the project's cold, aggressive black metal.