Grimmness is a black metal/crust project from Lancashire, formed in 2014, having evolved from earlier power electronics and noise origins. Their genre journey from harsh noise to black metal/crust reflects a consistently confrontational artistic vision.

Grimwind is a melodic death/power metal band from Nizhny Novgorod, Russia, active since 2018 and blending the aggression of melodeath with power metal's soaring energy. The project delivers dual-genre intensity from the Volga.

Gryal is a power metal band from Valencia, Spain, formed in 2025, representing a fresh addition to the Iberian power metal scene. Their sound embraces the genre's hallmarks of soaring vocals, melodic guitar work, and epic compositions.

Guadaña is a heavy metal and power metal band from Puerto Real in Cádiz, Spain, active since 1999, with a deep catalog including albums Tambores de Guerra, En Carne Viva, Culpables, and Balear. Their extensive body of work spanning over two decades reflects a commitment to heavy, riff-driven Spanish-language metal.

Guardians of Time is a power metal band from Kristiansand, formed in 2018. They deliver epic power metal from the southern Norwegian coast.

Guernica is a heavy/power metal band from Kolin, Czech Republic, formed in 2023, bringing European-style power metal to the Central Bohemian region. The band is in the early stages of establishing their presence in the Czech metal scene.

Guitar Heroes is a power metal and heavy metal band from Helsinki, Finland, formed in 2016, delivering guitar-driven anthemic metal with the soaring energy and melodic precision the power metal genre demands. Their sound celebrates the instrument at the heart of heavy metal.

Gun Barrel is a heavy/power metal band from Cologne, Germany, formed in 2001, delivering classic German-style power metal with heavy metal grit from the Rhineland. The band has built over two decades of traditional metal output.

Gunsen is a melodic death and power metal band from Toruń, Poland, active since 2016 and blending melodic death metal's aggression with power metal's soaring energy from the historic Vistula city. The project bridges two melodic extremes of the metal spectrum.