Folhas de Outono is a Christian progressive metal band from Nova Iguaçu, Rio de Janeiro, Brazil, formed in 2014. The band features guitarists Rafael Cabral and Herbert Silveira alongside vocalist Jefferson Sullivan, bassist Daniel Monteiro, drummer Ton Oliveira, and keyboardist Samuel W. Costa. Their debut album O tempo que me foi dado..., released in October 2014, is a twelve-track record whose lyrical themes draw from Christian scripture and personal faith.

Follows Strong is an atmospheric doom metal band from southern Brazil, active since 2020, known for combining deep growled vocals and heavy guitars with ethereal female vocals. The band released the EP Shadows of Despair in 2025, building on themes of collapse and resilience that define their atmospheric sound. Their official site describes their music as exploring the tension between darkness and endurance through layered, melancholic compositions.

For Bless is a deathcore band from Guarulhos, São Paulo, Brazil, formed in 2013. The band has released the EP Mascarado and the full-length album Equivalência, establishing a presence in the Brazilian heavy underground. Their self-description as a "Banda de deathcore Paulista" reflects their regional identity within the greater São Paulo metal scene.

Foramen Magnvm is a death metal band from Puerto Montt, Chile, operating within the death thrash tradition and active since 2013. The band released a split in 2018 alongside other Chilean death metal acts, and their early material, including the track "Silent Shadows," positions them within the underground extreme metal scene of southern Chile.

Foranguish is a depressive black metal (DSBM) project from Ceará, Brazil, formed in 2024. The band's debut album The Pain of Isolation, released on January 23, 2024, is a seven-track, 42-minute record featuring raw, somber riffs and screamed vocals typical of the DSBM style, with keyboards adding atmospheric texture on the final tracks. The album received attention from underground DSBM communities and is available on both Bandcamp and Spotify.

Forbidden Ideas... is a death/black metal and grindcore band from São Paulo, Brazil, conceived in 2003 by vocalist Bizarro and guitarist Claudio Czarnobai. The band debuted with the demo "Choking With Shattered Glass" in 2005 and went on to appear on the Violent Records compilations Endless Massacre III (2009) and Endless Massacre V (2013). Their lineup also includes bassist Fernanda Czarnobai and drummer João Leonel, with vocalist Diego Parmito joining in 2008.

Forced Departure is a Venezuelan technical death metal band formed in 2016 by Andrés Campos, Adolfredo Malavé, and vocalist Orlando Guevara. Their self-titled debut album (2022) showcases complex riffing, intricate solos, and blast-beat-driven intensity across eight tracks, earning the band recognition within the international technical death metal community. Though the members are based in Madrid, the band proudly identifies as Venezuelan in origin.

Forceps was a thrash metal band from Taubaté, São Paulo, Brazil that has since split up. The band released the demo "Scars of the World" in 2002, their primary documented output from their active years.

Forged War is a heavy metal band from Uberlândia, Minas Gerais, Brazil, formed in 2017. The band debuted with the single "Reborn from Hell" in 2017, followed shortly by "Rains of Tears," and continued releasing independently-produced material including a remastered version of their debut single and the single "End of the World" in 2020.