Feythland is a black/death metal band from Krakow, Poland, active since 2006. They blend black and death metal traditions from one of Poland's most culturally rich cities, drawing on nearly two decades of experience in the underground.

Fiamma Impura is a post-black metal and post-rock project from Milan, Italy, formed in 2021. Across releases including Solo, Shooting Stars, and Il Riflesso di Lei, they explore the atmospheric space between black metal intensity and post-rock contemplation.

Fiammes is a black metal project named after the hamlet of Fiames near Belluno in the Dolomites, formed in 2020. Their demo recordings channel raw, lo-fi black metal inspired by the rugged alpine landscapes of northeastern Italy.

Fiasko is a post-metal band from Warsaw that has evolved toward sludge/black metal since their 2017 formation. Their stylistic journey from atmospheric post-metal to more aggressive sludge and black metal territory mirrors the restless creative energy of the Polish capital's underground scene.

Fiat Noctum is a black metal project from Visby on the island of Gotland, formed in 2019. Their Latin name — meaning 'let there be night' — and their island setting give their black metal a uniquely isolated, medieval character from the Baltic Sea.

Fictio Solemnis is a symphonic blackened death metal project from Perugia, Italy, formed in 2022 as part of a broader 'Musical Metaverse' conceived by guitarist Edoardo Casini. Their debut EP (A)STER features orchestrations by Francesco Ferrini across six tracks of cosmic-themed extreme metal blending symphonic grandeur with blackened death metal aggression.

Fides Inversa is a black metal band from Rome, Italy, active since 2009 and rooted in occult and esoteric themes. Their discography — spanning Mysterium Tremendum et Fascinans, Rite of Inverse Incarnation, and Historia Nocturna — maps a deeply philosophical trajectory through ritualistic, atmosphere-laden Italian black metal.

Fieberwahn is a melodic death/black metal project from Sarntal in the Bolzano province of South Tyrol, formed in 2021. They draw on the German-speaking alpine metal tradition, channeling both melodic death and black metal through a distinctly Tyrolean perspective.

Field Effect is an atmospheric black metal and ambient project from Athens, Greece, active since 2012 and blending dark ambient textures with atmospheric black metal foundations. The project creates expansive, immersive soundscapes from the Greek underground.