Suffering Down channel black/death metal from the Basque town of Loiu near Bilbao, exploring themes of descent and suffering through extreme compositions. Formed in 2020, they bring Basque darkness to the Spanish extreme underground.

Suffocating Sight blend melodic thrash, death metal, and metalcore from the North Sea port of Cuxhaven, creating a multi-genre assault from the Lower Saxon coast. Formed in 2020, they bring asphyxiating intensity to the maritime metal scene.

SuicidalGrind pair power and death metal from an undisclosed Swedish location since 2023. Their provocative compound name channels the paradox of self-destructive extremity into compositions that unexpectedly merge two distant subgenres.

Suicide Symbiosis deliver melodic death metal from Lahti, combining the Scandinavian melodeath tradition with themes of mutual self-destruction. Active since 2011, they bring codependent intensity to the Paijat-Hame extreme scene.

Suicidio Project deal in death metal and metalcore from Toledo, channeling extreme aggression from the ancient Castilian capital perched above the Tagus gorge. Formed in 2020, their historic city backdrop provides stark contrast to their modern brutality.

Suidakra are one of Germany's premier melodic death/black/folk metal acts from Dusseldorf, blending Celtic mythology and folk melodies with aggressive extreme metal. Their extensive discography and international touring have made them one of the most respected folk-tinged extreme metal bands in Europe.

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.

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.