Heavy Sludge / Death Metal / Hardcore out of Texas.

Razor-sharp Thrash Metal / Crossover / Hardcore from Houston.

Also from the Houston area, this New Caney-based Skourge (formed 2014) operates at the death metal and grindcore end of the extreme metal spectrum — shorter, faster, and more brutal than their Houston namesake, with grind's trademark disregard for anything resembling polish.

Buffalo's Skrotum emerged in 2020 playing in the goregrind and brutal death metal tradition, favoring grotesque lyrical territory and the kind of blastbeat-driven, gore-drenched intensity that the genre demands.

Fresno's Skull Incision have been active since 2010, working in the ugly overlap between death metal, grindcore, and sludge — a combination that makes for short, punishing tracks coated in downtuned filth and California Central Valley grime.

Virginia Beach's Skulless formed in 2017 at the edge of death metal and grindcore, favoring the kind of brutal, compacted brutality that drops all pretense and hammers straight through — short songs, maximum punishment, East Coast coastal aggression.

Brooklyn's Skullshitter have been grinding since 2012, blending grindcore's short-fuse violence with death metal's guttural density into a distinctly New York City-styled assault. Their Bandcamp output reflects a band committed to brevity and brutality in equal measure.

Los Angeles grind-death outfit Skullsmasher formed in 2018, bringing a no-frills collision of death metal heaviness and grindcore speed to the Southern California underground. The band traffics in short, explosive material designed to overload the senses rather than reward patience.

Lincoln, Nebraska's Skummer formed in 2014 and deal in a grinding death metal hybrid that values ferocity over formality. Operating out of one of the more isolated pockets of the American Midwest, they bring a D.I.Y. aggression to a genre-blending style that rewards volume and repeated punishment.

Slack Meat are a Phoenix, Arizona brutal death metal and goregrind act formed in 2025, operating at the most extreme and visceral end of the spectrum with churning, gore-splattered riffs and blastbeat ferocity. Even by Phoenix extreme metal standards, their approach is intentionally unsubtle.

Slambo are a Minnesota goregrind outfit formed in 2010, trafficking in the splatter-obsessed, ultra-fast aesthetic of the genre with a deadpan comedic sensibility baked into the name. Over a decade in the underground, they have remained committed to short, brutal, and grotesque.

A Los Angeles thrash metal band formed in 2018, this Slaughterhouse draws from Southern California's rich thrash heritage — a lineage that runs from the Big Four's influence through decades of LA underground bands keeping the genre's speed and aggression alive.

Battle Creek, Michigan grindcore act formed in 2022, operating in the intersection of goregrind and grind 'n' roll — combining absurdist grime with relentless blasting and a loose, rock-infected swagger. Sleaze Lord bring an irreverent energy to Michigan's extreme underground.

Phoenix's Sligm are a fresh 2025 entry into the city's extreme metal scene, combining death metal's sonic brutality with grindcore's appetite for brevity and relentless speed. Their arrival signals another addition to Arizona's increasingly active underground extreme metal community.

Baltimore's Sloth Herder collide black metal's corrosive blast with grindcore's ferocious brevity, producing music that is simultaneously overwhelming in speed and density since 2012. Their hybrid attack places them among Maryland's most confrontational extreme metal acts.