Ukrainian experimental black metal project, newly formed in 2025 and pushing black metal into unconventional territory. Their name channels the earth's spherical layers through experimental, boundary-defying black metal.

Polish black metal/experimental project from Warsaw, pushing boundaries since 2020. Their name, meaning 'February' in Polish, channels the coldest, harshest month through experimental black metal.

An experimental death metal act from Bydgoszcz, Mala Herba has been pushing the boundaries of death metal since 2017. The band's Latin name, meaning 'bad weed,' signals their invasive, unconventional approach.

Malformation of Reality is a solo experimental black metal project from Frankfurt, Germany, whose 2013 album "Denn nun weint der Himmel" extends black metal roots into ambient, post-rock, and progressive territory. The ten-track German-language release reflects a deeply personal, multifaceted vision of extreme music that defies easy categorization.

Malvoisie is a noise black metal project from Switzerland, born in early 2007, whose songs are described as improvised under the influence of occult entities and serve as raw expressions of mental disease and phobic trauma. With a prolific catalog spanning releases like 'Black Ritual,' 'Weltschmerz,' and 'Necro Molestor,' the project operates at the chaotic intersection of black metal, noise, and ambient experimentation.

Mandragora are a black/death/thrash metal band with experimental elements from Vienna, Austria, operating at the intersection of multiple extreme subgenres. The band is catalogued in the Encyclopaedia Metallum as an active Viennese act pushing outside the boundaries of any single genre classification. Their Bandcamp presence under holasoyneto.bandcamp.com reflects the eclectic and unconventional nature of the project.

Marasme is an experimental sludge metal band from Mallorca, Spain, active since 2008, delivering darkness, rage, and hopelessness across seven releases. Their genre-defying sound is too blast-beat heavy for post-metal, too melodic for sludge, and too primitive for post-black, culminating in 2025's Fel dedicated to a fallen bandmate.

Marchosias is an experimental black metal project from Cluj-Napoca, Romania. Their 2012 album 'Above the Throne of God' delivers five tracks of atmospheric, conceptually driven black metal centered around religious and mythological imagery, exploring the genre's experimental edges from the Transylvanian underground.

Martre is an experimental black metal band from Frederikssund, Denmark, formed in 2018. They push black metal into unconventional territory through experimental approaches to the genre's foundational darkness.