Indianapolis's Global Plague works the space between progressive metalcore's technical reach and groove metal's locking-in low end, building music with enough structural interest to reward repeat listens and enough blunt force to satisfy immediately. Active since 2020.

Snohomish, Washington's Global Warning leans into hard rock-influenced heavy metal with the kind of melodic confidence that comes from years of working the club circuit. They've been sounding the alarm since 2017.

Detroit's Glockmouth launched in 2025 with a deathcore attack as blunt and urban as the city they came from — dense, mechanically brutal, and pointed like a barrel at everything soft. Motor City heaviness filtered through modern extreme metal.

Florida's Gloombringer arrived in 2023 fully committed to the most brutal and anatomically absurd corners of slam — pit-collapsing breakdowns, guttural vocals, and the relentless low-end punishment that defines the genre. They bring gloom in the most literal tonnage sense.

San Diego's Gloomed has been crafting traditional doom metal with a patience and heaviness that the genre's best practitioners would recognize since 2017. Their music doesn't rush — it descends, rung by rung, into a darkness from which it doesn't promise to return.

Fleetwood, Pennsylvania's Gloominous Doom is one of the underground's stranger propositions — progressive death and thrash metal with recorded ska influences woven in, making for something genuinely difficult to categorize and harder to ignore. They've been at it since 2015.

Atlanta's Gloomreach pulls death-doom into D-beat territory, pairing the glacial weight of death/doom with a rawer, more punk-informed attack that keeps the music from ever fully settling into complacency. Formed in 2018, they're one of Atlanta's more unpredictable extreme metal acts.

Memphis, Tennessee's Glorifying Dying channels black metal's nihilistic core with a directness that fits the city's long relationship with music made at the edge. Since 2015 they've been producing harsh, uncompromising black metal from the Deep South underground.

Glencoe, Missouri's Glorious Death has been pushing experimental black and death metal into unpredictable territory since 2014, willing to fracture structure and embrace dissonance in ways that make them stand apart from their more orthodox peers. The name is triumphant; the music is chaos.