Zagreb's A Gram Trip deliver heavy doses of doom, sludge, and stoner metal with a name that plays on their Croatian capital's identity. Since 2021, they've crafted a thick, groove-laden sound that embodies the spirit of the riff.

Aathma is a stoner and doom metal band from Madrid, Spain, formed in 2009, whose extensive catalog includes The Call of Shiva, Decline Towers of Silence, Deadly Lake, Avesta, and Dust from a Dark Sun. The band's thematic range spans Eastern spirituality, environmental desolation, and Zoroastrian mythology, reflected in album titles that draw from diverse cultural and philosophical traditions.

Aberdar are a stoner metal band from Banja Luka, Bosnia and Herzegovina, whose three-album discography — Kolos, The Cult of the Naked Snail, and THE SUN — moves through the hazy, riff-heavy tradition of desert and stoner rock. Their sound is built on downtuned, fuzz-soaked guitar work and a gravitational low-end that connects them to the European stoner metal scene's love of sustained heaviness.

Aberrancy has crafted stoner and sludge metal from Piła in Greater Poland since 1991, a remarkably early origin for a style that barely existed at the time. Over three decades, they have evolved alongside the genres they helped pioneer in the Polish underground.

Aborted Jalapeno delivers death metal, groove metal, and stoner metal from Stourbridge in the West Midlands since 2021, their absurdist name bringing dark humor to their genre-crossing heaviness. Their Black Country origins feed a distinctly working-class approach to extreme metal.

Abrahma emerged from the ashes of Parisian band Alcohsonic in 2011, becoming one of the torchbearers of French heavy rock on the international scene. Their psychedelic doom addresses mental health and dark conditions across albums like "In Time for the Last Rays of Light," blending stoner grooves with spiritual and occult themes.

Abramis Brama has crafted stoner metal and rock from Farsta in the Stockholm metropolitan area since 1999. Named after the freshwater bream fish in Latin, over a quarter century they have become one of Sweden's most respected stoner acts.

Abused Keyhole delivers stoner and doom metal from Naples since 2020, a city whose chaotic energy and ancient subterranean passages seem to feed their hazy, heavy sound. Their surreal name matches the lysergic quality of Neapolitan stoner doom.

Sinj's Achachak generate heavy, fuzz-drenched stoner metal from the Dalmatian hinterland, proving that the genre thrives in Croatia's sun-baked interior. Since 2020, they've been building a catalogue of riff-heavy psychedelic heaviness.