Gothic/melodic black metal band from Vantaa in the Helsinki area, active since 2010. Their Latin name — meaning 'in the silence of night' — channels dark atmospherics from the Finnish capital region.

In Slumber are a melodic death metal band from Linz, Upper Austria, founded in 2003 by multi-instrumentalist Wolfgang Rothbauer, who has remained the band's constant creative force across multiple hiatuses. After a thirteen-year gap, they returned with While We Sleep (War Anthem Records, 2022), a nine-track album mixing brutal death metal aggression with introspective melodic leads and themes of dreams and the subconscious.

In Solitude were a Swedish heavy metal band from Uppsala, active from 2002 until their dissolution in 2015. Signed to Metal Blade Records, their 2011 album The World, The Flesh, The Devil landed at number four on Decibel Magazine's Top 40 Extreme Albums of the year, placing them among the foremost practitioners of occult-tinged classic heavy metal in their generation.

In Some Dismals is a death metal/grindcore band from Kirov, Russia, active since 2011 and delivering uncompromising extremity through crushing riffs and guttural vocals. The project channels the relentless brutality of the genre.

In Somnia are a melodic death metal band from Lienz, East Tyrol, Austria, with a Bandcamp discography that includes the album Clouds and a pair of EPs. The name — Latin for "in dreams" — signals an introspective atmosphere that filters melodic death metal through post-metal-influenced textures and emotional restraint.

In Somnis is an atmospheric death/doom metal band from Lendelede, Belgium, active since 2007, crafting slow-burning, melancholic heaviness. The band layers death metal growls over crushing doom riffs and ethereal atmosphere in the tradition of European death/doom.

In State of Void is a groove/thrash metal band from Beverwijk, Netherlands, active since 2014 and blending thrash metal's velocity with groove metal's rhythmic punch. The project delivers high-energy, riff-driven metal.

In Sulfur is a groove metal/metalcore band from Malmö, Sweden, active since 2016 and delivering heavy, rhythmic riffage with crushing mid-tempo intensity. The project channels the headbanging immediacy of groove metal.

Symphonic metal band from Chester in northwest England, active since 2018. Their mathematically-styled name channels orchestral metal from the Roman-founded border city.