A raw black metal entity from Bosnia and Herzegovina, Mavet operates deep in the underground with limited public documentation beyond their Bandcamp presence. The project adheres to the lo-fi, stripped-down aesthetic of the international raw black metal underground, releasing material with little promotional infrastructure.

Maveth is a blackened death metal project from Germany, formed in 2021. Their sound merges the atmospheric darkness of black metal with death metal's visceral brutality, creating a dense, oppressive sonic assault.

Maw is a black and death metal band from London and Royal Leamington Spa, England, formed in 2012. They channel abyssal extremity through the convergence of black and death metal.

Maximize Bestiality is a brutal slamming death metal duo from Hamburg, Germany, featuring vocalist Drohbert and guitarist Dr. Faust. Their releases including "Omnihilation" and "Extraterrestrial Skolexomorphic Infestation" deliver the ultra-heavy, breakdown-laden extremity that defines the slam death metal underground.

A heavy metal act from the coastal city of Volos in Thessaly, Maximum Overdrive emerged in 2024 with a name that signals pedal-to-the-floor intensity. The band delivers high-energy traditional metal from the foot of Mount Pelion.

Maximus is a raw black metal project from an undisclosed French location, active since 2021. The project delivers uncompromising, lo-fi black metal with the misanthropic intensity that characterizes the French raw black metal underground.

May Day is a heavy metal band from Algeciras, Spain, formed in 2011. They channel classic heavy metal energy from the southernmost tip of the Iberian Peninsula.

Maya Mountains is a psychedelic rock band from Venice, Italy, formed in 2004. Their debut 'Hash and Pornography' (2008) was released through Go Down Records, followed by 'Era' (2015), produced by Alessandro Siniscalchi — both albums rooted in extended jams, heavy riffs, and psychedelic vision.

Mayak is a Bielefeld, Germany-based band self-described as playing "sludgy black metalpunkblabla," blending black metal, sludge, stoner rock, and punk into a volatile crossover. Their discography spans from the 2012 self-titled EP through 2018's "Trenches" LP, released on vinyl through Twisted Chords.