IIIusion is a depressive black metal, ambient project from Trento, Italy, active since 2021 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.

IJsrijk is an atmospheric depressive black metal studio project from Ghent, Belgium, formed as a duo by vocalist Traen and multi-instrumentalist Smart. Their 2014 album Eensaemen Leydenswegh, sung in Dutch, delivers forty-eight minutes of glacial ambient black metal — the band's name translates to "Empire of Ice."

Impavida is an atmospheric/depressive black metal and ambient project originally from North Rhine-Westphalia, later based in Koblenz, Germany, active since 2019. The band layers depressive black metal over ambient textures, creating immersive, emotionally devastating compositions released through Van Records.

In Dolore is a depressive black metal/rock project from Russia, active since 2024 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.

Incubo is a depressive black metal/ambient project from Latina, Italy, active since 2016 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.

Infernal Bleeding is a atmospheric/depressive black metal project from Reykjavík, Iceland, active since 2023 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.

Initium Mortuus is a depressive black metal project from Szekszárd, Hungary, active since 2015 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.

Initium Noctis is an atmospheric/depressive black metal band from Dresden, Germany, formed in 2026, crafting desolate, emotionally harrowing black metal. The band's name — Latin for "beginning of night" — reflects their immersion in the genre's most introspective and melancholic traditions.

Inner Suffering is a depressive black metal project from Kharkiv, Ukraine, active since 2014 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.