Columbia thrash metal project from the South Carolina underground.

Tampa progressive metal project whose 2022 debut Multiplicity explores the philosophical concept of infinite possibility through technically ambitious compositions. Named after the Greek concept of the boundless, channeling Florida's prog-metal tradition into something expansive.

Madison Heights, Virginia progressive metal project with an extraordinary fourteen releases since 2012. The medical term for language impairment belies their prolific verbal output, building one of the deepest catalogs in American underground prog from a small Blue Ridge city.

Florida progressive melodic death metal project whose 2021 instrumental EP strips the vocals away to spotlight technical musicianship. Another entry in the Sunshine State's legacy of technically ambitious extreme metal.

Arcadea is a synth-driven metal project from Atlanta, Georgia, formed in 2015 by Mastodon drummer Brann Dailor alongside keyboardists Core Atoms and Raheem Amlani, with Dailor serving as lead vocalist. Their self-titled debut, released in June 2017 on Relapse Records, featured no guitars—both Atoms and Amlani play only synthesizers—resulting in a futuristic, psychedelic sound built on cosmic themes and prog-funk rhythms. The band returned with a second album, The Exodus of Gravity, in August 2025.

Philadelphia progressive metal project from the Pennsylvania underground.

Hartford, Connecticut progressive metal collaboration between vocalist John Arch and guitarist Jim Matheos, both formerly of Fates Warning. Their 2019 album Winter Ethereal reunites two titans of American progressive metal for music that honors their legacy while pushing forward.

Mahwah melodic death metal project from the New Jersey underground.

St. Louis progressive metal act that weaves intricate compositions with technical precision, drawing from the Gateway City's diverse musical heritage to forge sprawling, ambitious arrangements.