Shelton, Connecticut's Delta Protocol arrived in 2020 merging deathcore's rhythmic devastation with death metal's compositional darkness. The band draws on Connecticut's small but dedicated extreme metal underground, building music that is systematic in its brutality — breakdowns deployed like weapons within a framework of genuine death metal menace.

Bristol, Pennsylvania's Deluge have been a fixture of the area's death metal underground since 2014. Their approach is direct and unrelenting — the name says it all — delivering surging, crushing death metal that overwhelms through sheer accumulated weight.

Nashua, New Hampshire's Delusion formed in 2021 with a straight-ahead death metal approach that suits the grim winters of the Granite State. Operating on the fringes of the New England extreme metal scene, the band commits to classic death metal structures and unflinching heaviness without distraction.

Baltimore's Delusion formed in 2021 at the heavier end of progressive metal, blending intricate songwriting with the city's well-established appetite for hard-hitting music. Drawing on Baltimore's reputation as a city that doesn't do things halfway, the band pursues progressive metal's complexity with the weight and intention of the genre's finest.

Chino, California's Delusional Fate have been crafting progressive death metal since 2016, merging the relentless brutality of death metal with the compositional ambition that the progressive tag demands. The Inland Empire band builds dense, labyrinthine songs that reward close listening without sacrificing the genre's essential ferocity.

Murfreesboro, Tennessee's Delusional Fixation launched in 2025 at the most violent end of the death metal spectrum, trafficking in slam and brutal death metal. The Middle Tennessee underground has steadily built its extreme metal credibility over the years, and Delusional Fixation's bowel-loosening low-end and percussive slam breakdowns mark a new entry in that tradition.

Acworth, Georgia's Delusional Mind formed in 2020 blending the kinetic energy of thrash metal with progressive metal's structural ambition. Their music moves between the aggressive, riff-forward momentum of classic thrash and more elaborately arranged passages, reflecting a band comfortable pushing the genre's boundaries without abandoning its essential aggression.

Michigan's Delusional Parasitosis have been operating in brutal death metal territory since 2013, named after the psychiatric condition in which a person falsely believes themselves to be infested with parasites — a suitably unnerving image for music that crawls under the skin. Their decade-plus in the underground speaks to a commitment to relentless, punishing brutality with no compromise.

Denver's Delusionist formed in 2019 as a progressive metal act operating in one of the West's most creatively fertile cities. The band builds intricate, layered compositions that reflect the high-altitude ambition of the Denver music scene, balancing technical sophistication with the kind of melodic sensibility that keeps progressive metal from disappearing entirely into abstraction.