Sukkhu channel black metal from Prague, drawing on occult themes and dark atmospheres to fuel their extreme compositions. Formed in 2021, they add to the Czech capital's deep well of black metal talent.

Sukoi deliver heavy and power metal from Bilbao, channeling the anthemic grandeur of European power metal through Basque intensity. Their jet-fighter-referencing name promises high-velocity, powerful compositions.

Sulf-atar forge black/death metal from the Galician town of Ponteareas, combining extreme aggression with sulfuric intensity. Formed in 2019, they bring volcanic darkness to the northwestern Spanish underground.

Sulfurer deal in death metal from Bilbao, channeling sulfurous brutality from the Basque Country's largest city. Active since 2018, they bring chemical aggression to the Basque extreme scene.

Sulfuris forge heavy and groove metal from the Helsinki/Vantaa area, combining classic metal foundations with rhythmic heaviness. Formed in 2024, they bring sulfuric intensity to the Finnish capital region.

Sulphur Aeon channel blackened death metal from Waltrop in Westphalia, drawing heavily on Lovecraftian cosmic horror for their thematic material. Their albums have earned them widespread acclaim for combining crushing death metal with otherworldly, oceanic atmospheres that evoke the dread of cosmic entities.

Cerveteri's Sulphur and Mercury play heavy metal from the ancient Etruscan necropolis town since 2024. Their alchemical name and archaeologically rich setting create a uniquely esoteric context for traditional metal.

Sulphur Feast deliver melodic death metal from Santa Cruz de Tenerife, combining Scandinavian melodeath influences with the volcanic intensity of the Canary Islands. Active since 2008, they bring brimstone-fueled melody to the Atlantic archipelago.

Sulphur Seas practice black metal from Madrid, channeling oceanic darkness and sulfuric atmospheres through their compositions. Active since 2015, they bring chemical-sea imagery to the Spanish capital's black metal scene.