Denver, Colorado extreme metal outfit formed in 1992, renowned for a chaotic blend of grindcore, death metal, and progressive elements that has made them one of the most technically adventurous acts in the American underground; their albums on Relapse Records, including Lucid Interval and Xenosapien, are landmarks of experimental extreme metal.

Thrash metal band from Athens, Ohio, playing aggressive, riff-driven thrash in the American tradition.

Baltimore, Maryland band fusing death metal heaviness with progressive metal structures and djent-influenced rhythmic complexity, resulting in a technically ambitious and atmospheric sound.

Philadelphia, Pennsylvania brutal death metal and grindcore band whose name — a medical term for conjoined twins — signals their penchant for grotesque themes delivered through abrasive, blasting extremity.

San Diego, California brutal death metal and slam act formed in 2003, known for guttural vocals, down-tuned chugging riffs, and the punishing rhythmic intensity central to the slam subgenre; frequent comparisons to Devourment and Disgorge.

Heavy metal band from West Warwick, Rhode Island, rooted in the traditional heavy metal sound with melodic sensibilities.

Death metal band from Grand Rapids, Ohio, delivering raw and direct death metal in the American underground tradition.

Riverside, New Jersey band working in death-doom, combining the crushing weight of doom metal with the brutality of death metal for a slow, dense, and suffocating sound.

Lakeland, Florida death metal band playing in the tradition of the Sunshine State's storied brutal death metal underground.