A raw thrash/black metal horde from the northeast, NightHunter deal in aggressive, blasphemous metal with lyrical themes of death, paganism, and alcohol-fueled misanthropy. Their discography includes the full-length "Hunting the Christian Scum" and the follow-up "The Return of the Evil Empire" (2014), both carrying the corrosive spirit of the South American underground.

Nightmare Slaughter deliver old-school death metal with a deeply occult bent, drawing on Thelema, Kabbalah, and Mesopotamian mythology across their lyrics. Their 2017 EP "The Quintessence of the Incomprehensible" introduced the project, and the 2021 full-length "Worm Kabbalah" solidified their sound — dense, deliberate, and reminiscent of early Vader and Gorguts.

Nightwölf wear their Judas Priest and Accept influences proudly, forging a traditional heavy metal sound built on twin-guitar riffs and powerful melodic vocals from Jack Znake. Their 2023 debut album "The Cult of the Wolf", released through Kill Again Records, is a ten-track statement of purpose that even dips into Afro-Brazilian mythology with the track "God of Iron".

Nigrae Lunam is a doom/death duo composed of vocalist Paulo Brasil and multi-instrumentalist Kastiphas, whose music explores occult feminine mythology — particularly the figure of Lilith — through slow, suffocating riffs and bleak atmospherics. Their 2020 debut album "Lilith Regnator Est" was recognized by metal press as one of the standout Brazilian extreme metal releases of that year.

Lignum Mortis is a one-man black and doom metal project from Valdivia, in southern Chile, that merges sounds drawn from death metal, black metal, and dark ambient to create densely layered sonic landscapes. The project's self-titled debut was released in 2015 as a limited CD-R run of 30 copies before being made available digitally, followed by Vacuum Inferno in 2022 and Lignum Mortis II in December 2025. All music, recording, mixing, mastering, and artwork are handled entirely by the sole member.

Nigrum Vortex is a black metal band from Lima, Peru, formed in 2022 and released through Oratorivm Records. Their debut EP "Across the Nigrum Vortex" (2023) introduced a sound rooted in South American black and death metal traditions, with four tracks exploring themes of perpetual darkness and void.

Nigurah blend the groove-heavy stomp of mid-era Sepultura with thrash and death metal aggression, arriving from the same Rio Grande do Sul scene that has long punched above its weight in Brazilian extreme metal. The quartet — Rafael Prado on vocals, Fernando Cezar Jr on guitar, Felipe Ribeiro on bass, and Luke Santos on drums — released their debut EP "Incendiar" in October 2020.

Niharp navigate the intersection of progressive and traditional heavy metal, layering melodic guitar work from Murilo Mazza and Paulo "Koragem" Cesar against the dynamic vocals of Douglas Rovas. Their 2018 album "Into Ethereal Dusk" is an eight-track record that ranges from sweeping atmosphere to tighter, riff-forward passages, showing a band with genuine compositional ambition.

Nihilifer is a death/black metal band from Temuco, Araucanía, that emerged in 2013 from earlier projects Sarcoma Corpus and Ritualism, signing to Throats Productions. The band released the demo Chaos Ex Nihilo in November 2013 and the full-length Subterfacto.declive in 2018, a dense 54-minute album exploring themes of occultism, anti-creationism, and spirituality across eight tracks.