Multi-genre extreme metal band from Tielt in West Flanders, active since 2008, blending black metal, death metal, grindcore, and crust punk into a volatile sonic cocktail. Their stylistic range reflects an uncompromising approach to extreme music that refuses genre boundaries.

Sirens of Crisis blend crust and sludge metal from Leverkusen, combining punk's raw urgency with sludge's crushing weight. Active since 2014, they bring a politically charged, abrasive sound to the Rhineland heavy scene.

Slavery combine death metal with crust punk from Prague, creating a raw, politically charged hybrid that draws on both extreme metal's heaviness and punk's DIY urgency. Their fusion reflects the crossover energy of the Prague underground scene.

Slum Reaper pair death metal and crust punk from an undisclosed Swedish location since 2017. Their poverty-harvester name channels the collection of death from society's margins into compositions of anonymous, punk-infused extremity.

Soil to Ash fuse speed metal, black metal, and crust punk from Kaiserslautern, creating a volatile crossover that draws from three of heavy music's most aggressive styles. Formed in 2020, they bring chaotic energy to the Rhineland-Palatinate scene.

Tolyatti's Sokkva pair black metal and crust punk from Russia's automotive capital since 2016. Their enigmatic name and factory-city origins channel industrial grit into compositions that merge atmospheric darkness with punk urgency.

Sooz blend doom, sludge, and crust from the northern Finnish city of Oulu, combining crushing heaviness with punk's raw urgency. Formed in 2022, they bring multi-genre aggression to the Ostrobothnia underground.

Sore Throat formed in Huddersfield, England in 1987, becoming one of the earliest and most extreme proponents of noisecore — a subgenre of grindcore defined by total sonic disintegration, ultra-short song lengths, and confrontational anti-music aesthetics. Their debut Unhindered by Talent (1988) and the 101-track Disgrace to the Corpse of Sid demonstrated a commitment to extreme volume and brevity that would anticipate the most violent edges of grindcore. Active until 1990, with a brief 1991 reunion, the band influenced the British underground disproportionate to their short lifespan. A new EP, Starving Wolves Stand & Fight!, arrived in 2022 on Bandcamp.

Soulslasher combine death metal with crust punk from Dusseldorf, fusing extreme metal's heaviness with punk's raw, D-beat-driven urgency. Formed in 2021, they bring visceral crossover energy to the Rhine-Ruhr underground.