Mahatma is a stoner, doom metal, and rock band from Bologna, Italy, active since 2001. With over two decades of activity, they deliver heavy stoner doom from the Emilian capital.

A stoner/doom metal act from Lublin in eastern Poland, Major Kong has been delivering heavy, fuzz-laden compositions since 2011. Named after the bomb-riding character from 'Dr. Strangelove,' the band channels darkly humorous themes into crushing doom.

Malacarne is a stoner, doom metal, and rock band from San Giovanni Rotondo, Italy, formed in 2019. Their Italian name meaning "bad meat" captures the raw, visceral nature of their stoner doom.

Malota is a band from Venice, Italy, formed in 2015, having evolved from stoner and alternative rock into post-metal. Their creative evolution reflects a deepening embrace of atmospheric heaviness.

Mammoth Storm formed in Säffle, Sweden at the end of 2012 for the express purpose of playing heavy, riff-driven doom, drawing on stoner metal and traditional doom conventions without affectation. The band released their debut full-length Fornjot in 2015 on Napalm Records, followed by Alruna (2019) on Argonauta Records, each featuring lengthy, slow-burning compositions built around massive guitar tones and atmospheric organ. Their straightforward dedication to the heaviness of the riff places them in line with Swedish doom tradition alongside acts like Reverend Bizarre and Witchcraft.

A stoner metal act from Drammen, Mammüth has been delivering mammoth-sized, fuzz-heavy grooves since 2018. The band channels the prehistoric weight of their name into thick, rolling riffs.

A stoner metal and psychedelic rock act from Nyköping, Mamont has been delivering mammoth-sized grooves since 2022. The band channels the prehistoric weight of their Russian-derived name into thick, psychedelic riffs.

Man Or Maker is a one-man metal project based in Lviv, Ukraine. The solo artist's catalog includes the albums 'Winter Voices' and 'Summer Gaze,' exploring contrasting seasonal themes through self-produced metal compositions.

Mana Fantoma is a four-piece occult deathfuzz band from Seinäjoki, Finland, blending heavy fuzz guitar, doom metal weight, and stoner punk energy. Their 2024 demo features two tracks — 'Drip' and 'Bird Legged Woman' — introducing their murky, occult-tinged sonic identity.