Tarnowskie Góry sludge metal outfit formed in 2014, delivering crushing sonic weight from the Silesian voivodeship. Their oppressive approach channels the genre's most suffocating impulses.

Narusnijce is a post-metal/sludge metal band from Perugia, Italy, formed in 2023. They deliver heavy, atmospheric compositions from the capital of Umbria.

Nathan Watson is an atmospheric sludge metal project from Coventry, UK, active since 2008. The project delivers heavy, atmospheric sludge metal from the industrial heart of the English Midlands.

Nausea or Questra is an experimental sludge metal band from Prato, Italy, active since 2010. Their unusual name matches their unconventional approach to heavy, textured music.

Amsterdam atmospheric sludge/post-metal/rock act formed in 2014, crafting immersive sonic landscapes through the fusion of crushing heaviness and expansive dynamics. Their atmospheric approach bridges multiple genres into contemplative heaviness.

Nautilus is a sludge/stoner metal band from Rush, County Dublin, Ireland, active since 2017. Named after the legendary submarine, they dive deep into heavy, ocean-floor grooves.

Nebra is a progressive sludge metal band from Geneva, Switzerland, founded by Philippe and Robert and later joined by Jerome and Samuel. Signed to Pelagic Records, their 2016 debut 'Sky Disc' delivers massive, instrumental metal built on ear-bludgeoning guitar walls and percussive groove.

Haarlem sludge/stoner metal act launched in 2025, delivering crushing heaviness and fuzz-drenched grooves from the North Holland capital. Their downtempo approach channels the most oppressive corners of the sludge tradition.

Necrodomia is a sludge metal and drone band from London, UK, formed in 2023. Their sound merges the crushing weight of sludge metal with the sustained intensity of drone.