Indrid Cold is a doom/post-metal band from Jindrichuv Hradec, Czech Republic, active since 2012, named after the mysterious figure from Mothman lore. The band crafts slow, atmospheric compositions that blend doom metal's crushing weight with post-metal's expansive, cinematic dynamics.

Indwelled is a death/doom metal/deathcore act from Arendal, Norway, active since 2020 and merging death metal's ferocity with doom's oppressive weight. The project inhabits the crushing intersection where both genres converge.

Inept Madness is a heavy/doom metal act from Lund, Sweden, active since 2011 and channeling monolithic heaviness through its doom metal framework. The project delivers oppressive, glacially paced compositions.

Black/funeral doom metal band from France active since 2009. Their French name — meaning 'luminescent ineptitude' — adds surreal contradiction to their crushing extremity.

Inerth is a genre-spanning extreme metal band from Madrid, Spain, formed in 2019, merging death, doom, industrial, and sludge metal into a dense, crushing whole. The band's multi-genre approach creates a suffocating sonic experience from the Spanish capital.

Infamus is a death/thrash metal band with doom influences from the Burgwedel/Hanover area of Germany, formed in 2022, blending the velocity of thrash with death metal heaviness and doom metal's oppressive pace. The band's triple-genre approach creates a dynamic, unpredictable sound from the Lower Saxon lowlands.

Infernal Fat Cat is a stoner/doom metal band from Warsaw, Poland, active since 2025 and delivering crushing, fuzz-laden heaviness where doom's oppressive weight meets stoner metal's hazy grooves. The project channels low-end power and psychedelic atmosphere.

Infernal Gates is a melodic death/doom metal band from Kil, Sweden, active since 2021 and blending melodic harmonies with death metal aggression. The project channels the twin-guitar traditions of Scandinavian-influenced melodeath.

Inferno (XII) is a stoner/doom metal band from Växjö, Sweden, active since 2010 and delivering crushing, fuzz-laden heaviness where doom's oppressive weight meets stoner metal's hazy grooves. The project channels low-end power and psychedelic atmosphere.