Internal Suicide Bomber is a depressive black metal project from Moscow, Russia, active since 2022 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.

Internal Thorn is a death/black metal act from Łomża, Poland, active since 2003 and merging the atmospheric darkness of black metal with death metal's crushing brutality. The project delivers fierce extremity at the crossroads of both genres.

Internal Torment is a black metal band from Bergkamen, Germany, formed in 2021, forging raw, hostile black metal from the Ruhr fringe town of Westphalia. The band channels inner turmoil into compositions of unrelenting atmospheric darkness.

Intero is a metalcore band from Nijmegen, Netherlands, active since 2006 and delivering aggressive, dynamic metal with crushing breakdowns and intense energy. The project channels the power of modern extreme metal.

Interpol are a thrash metal band from Newark, England, active since 2002. They deliver straightforward thrash metal from the East Midlands.

Interpolant is a electronic/industrial death metal band from The Hague, Netherlands, active since 2021 and delivering uncompromising extremity through crushing riffs and guttural vocals. The project channels the relentless brutality of the genre.

Interra is a melodic death metal band from Hamburg, Germany, active since 2016, delivering Scandinavian-influenced melodeath from Germany's largest port city. The band blends hooky guitar harmonies with crushing death metal weight from the shores of the Elbe.

Interred is a slam/brutal death metal band from Stockholm, Sweden, active since 2024 and dealing in the most extreme and guttural forms of death metal. The project channels punishing brutality with unrelenting intensity.

Interregnum are a melodic death metal band from Graz founded in 2006, weaving themes of Norse mythology, Viking battles, and Germanic heroism through heavy melodic riffs and dense arrangements. Their 2020 album Des Menschen Bürde features tracks like "Hagazussa" and "Knochenvater," presenting a bleak, mythology-soaked brand of European melodic death metal.