Reno thrash act Skull Fracture have been tearing through the Nevada underground since 2021, bringing the speed, aggression, and no-frills production aesthetic that keeps classic thrash metal's underground flame burning in the high desert.

Skull Pit formed in 2018 as a transatlantic collaboration between Mem V. Stein of German thrash band Exumer and Tatsu Mikami of Tokyo doom act Church of Misery. The pair, who had long corresponded online over mutual admiration for each other's bands, channeled their shared love of Motörhead and the New Wave of British Heavy Metal into the project's self-titled debut album, released on Metal Blade Records in November 2018. The record's ten tracks — including a cover of Rose Tattoo's 'All the Lessons' — prioritize stripped-down riffing and momentum over genre innovation, delivering a focused heavy metal statement.

A California heavy/thrash metal outfit that materialized in 2025, Skullbuggery appears to be taking cues from classic metal's swaggering riff vocabulary, planting a tongue-in-cheek name on a foundation of heavy, speed-driven material.

Portland, Oregon's SkullMaster emerged in 2020 playing a hybrid of black, heavy, and thrash metal that carries the reckless energy of the Pacific Northwest underground. Their sound pulls from classic thrash aggression while threading in black metal atmospherics and traditional heavy metal songcraft.

Michigan City, Indiana's Skullview have been one of the Midwest's most persistent heavy/power metal acts since forming in 1997, trading in soaring vocals, galloping rhythms, and classic dual-guitar attack. Their nearly three-decade run makes them a genuine institution in American underground power metal.

Chicago's Sky Summoner formed in 2020, blending traditional heavy metal's muscular songcraft with stoner metal's fuzz-drenched ease into something that sits naturally alongside the city's underground rock scene. They bring a groove-conscious approach to classically influenced metal that keeps the songs accessible without sacrificing weight.

Jacksonville, Florida's Skyliner have been one of the Southeast's more ambitious heavy metal acts since forming in 2018, working across heavy, progressive, and power metal to craft music built around strong melodic sensibility and technical range. They operate in the tradition of American power metal that values both songwriting and instrumental sophistication.

Taunton, Massachusetts's Skywül formed in 2024 and play a hybrid of melodic and heavy death metal that reflects the New England underground's affinity for both European melodeath influences and old-school American brutality. A newly formed act working within a style that rewards strong melodic composition as much as raw aggression.

Slammer are a heavy metal band formed in 2019, drawing on the hard rock and traditional metal traditions for a sound that favors melody and power over extremity. Their Bandcamp handle, hogslammer, suggests a personality as large as their riffs.