Founded in Rio de Janeiro, Brazil in 1998, Grave Desecrator channel the savage spirit of early Sarcófago, Mutilator, and Holocausto through a black/death metal attack steeped in satanic and sacrilegious themes. Their 2008 debut Sign of Doom and the 2010 follow-up Insult on Nuclear War Now! Productions established their reputation as torchbearers of the brutal South American extreme metal tradition. In 2023 the band released Immundissime Spiritus through their own Caverna de Sangue Productions, maintaining full creative and commercial independence.

Grave Reaper is a black/speed metal band from São Luís, Maranhão, Brazil, active since 2012 with a sound rooted in Satanic and anti-Christian themes. The band released their debut demo 'Sob o Martelo de Satã' in 2012 and followed it with the EP 'Speed Metal Mayhem' in 2015.

Gravedäncer is a black/speed metal band from São Paulo, Brazil, playing raw, Venom-influenced metal with NWOBHM undertones. The band released their debut demo 'Ripping Metal' through Helldprod Records in January 2021, and also appeared on the split 'Salvete Infernum' alongside Sanguinario, released through Laja Records.

Gravkall is an active black metal band from Maracanaú, Ceará, Brazil, formed in 2025. Signed to Alyssas Vinter Records, the band released their debut demo "Gravkaller" in March 2025 in digital format.

Great Vast Forest is a black metal band from Lages, Santa Catarina, Brazil, founded by Surgath in 1994 and one of the earliest acts in the Brazilian black metal underground. Describing their sound as "Barbarian Black Metal" — aggressive and cold yet melodic — the band released their debut album "Battletales and Songs of Steel" in 2002, followed by "From the Dark Times to the Black Metal Legions" in 2017.

Greensleeves is a progressive metal band from Curitiba, Paraná, Brazil, originally formed in 1993 by guitarists Victor Schmidlin and Cicero Baggio before resuming activity in later years. The band released the concept album "The Elephant Truth" in 2009 — a sprawling 23-movement work spanning over 70 minutes and inspired by John Godfrey Saxe's poem "The Blind Men and the Elephant" — followed by "Inertial Frames" in 2014.

Greve is an antifascist grindcore duo from Londrina, Paraná, Brazil, formed in 2019. The band released their self-titled demo in 2021 and have since put out several recordings including "Esforços em Vão" (2023), a split with Void It (2023), and the 2025 release "Cosmopolitas".

Grietas are an alternative metal band from Reconquista, Santa Fe, Argentina, with Nicolás "Cabeza" Saucedo (guitar and lead vocals) as the sole continuously active member alongside Guillermo Tortul (bass) and Facundo Lopez (drums). Their second studio album "Secuelas" was released in late 2020, recorded at Coda Studio in Reconquista and mixed and mastered by Lian Gerbino at White Door Studio in Malmö, Sweden. The title track features guest appearances from Fabricio Faccioli (ex-Vorgrum, ex-Treno) and Lian Gerbino of Tersivel.

Grim Crypt is a one-man death/thrash metal project from Tôrres, Rio Grande do Sul, Brazil, helmed by guitarist Lucas HR and formed in 2023. The project released "Reborn" in 2023 and followed it with the album "Absolute" in May 2024, showcasing a home-recorded, technically-driven approach to the genre.