P.U.L.S.I.O.N is a heavy metal trio from Tres Lomas, a small town in the Buenos Aires province roughly 500 kilometers from the capital, and one of the more geographically remote entries in Argentina's underground metal scene. The band consists of Darío Gil on guitar and vocals, Jorge Detzel on bass, and César Adema on drums — three musicians who built their project from scratch in a town with no established metal infrastructure, recording their debut entirely on their own terms. Their first album, 'Utopías de Proyección,' released in December 2018, bears all the hallmarks of dedicated provincial heavy metal: honest riff-work, clean arrangements free of studio affectation, and a directness that comes from musicians who play because they genuinely love the form rather than for any careerist reason. The track 'Ecotopico' is among the standouts, showing a band that understands how to build dynamics within the classic heavy metal framework. Gil composed both the music and lyrics, giving the album a coherent personal vision rooted in the timeless Argentine heavy metal tradition that traces from V8 and Riff through Almafuerte and beyond. The band's use of social media and platforms like Bandcamp, SoundCloud, Instagram, and YouTube reflects how modern underground acts in Argentina's interior have compensated for their geographic isolation — building small but genuine audiences across the country without ever needing Buenos Aires as a gateway. P.U.L.S.I.O.N represents the stubborn, unglamorous face of Argentine heavy metal at the grassroots level, where the only prerequisites are three friends, some gear, and an unshakeable commitment to the music.

Parth Gallen was a power and speed metal band from Natal active from 2001 to 2005, drawing on fantasy worlds drawn from video games, anime, and epic fiction — references to universes like World of Warcraft and Castlevania ran through their early material. In 2024 the surviving members issued Burning Swans, a collection built from tapes recorded at a 2017 reunion session featuring vocalist Davison Pegado, guitarists Christophe Freire and Roberto Phrankson, drummer T-Rash, and bassist André Rocha.

Pasco 637 takes their name from a specific street address in Ramos Mejía, a suburb in the western belt of Greater Buenos Aires — the house of a woman named Nely 'Tata' Bruno, which served as an unofficial rehearsal sanctuary for local rock and metal musicians across multiple generations, dating back as far as the mid-1960s when bands like Los Grillos and Semilla de este Tiempo gathered there, the latter including musicians who would later surface in influential Argentine acts. By naming themselves after this address, Pasco 637 make a statement about continuity and belonging, locating themselves within a lineage of suburban Buenos Aires rock culture that fed the heavy metal scene throughout the 1980s and 1990s. The band's core formed in 1998 under the name Belzebuth, playing until 2004, and then regrouped and renamed in 2014 — meaning their actual musical relationship spans decades even if the Pasco 637 identity dates to their return. The current lineup includes Jerónimo Deiros on vocals, Demián Rugna and Juan Manuel Delgado on guitars, Ariel Simonetti on bass, and Walter Sosa on drums. Rugna is notable as an accomplished horror film director — his 2017 film 'Aterrados' (Terrified) earned widespread critical acclaim, winning Best Picture in the Horror category at Fantastic Fest, and his 2023 follow-up 'Cuando Acecha la Maldad' (When Evil Lurks) gained international distribution — and Pasco 637 has contributed music to several of his films, creating an unusual crossover between Argentina's underground metal world and its genre cinema scene. Their 2019 debut album 'Eterno en el Tiempo' blends material drawn from their 20-year catalog with newer compositions, reflecting the clear influences of Megadeth, Iron Maiden, and the Argentine groove metal tradition of Almafuerte. Reviewers noted the album's strong guitar interplay and Argentine-flavored rhythmic sensibility, with 'Catan' singled out as a highlight for its dynamic construction. Their sound distills the authentic suburban Buenos Aires heavy metal spirit — direct, groove-laden, and built to be played loud.

Paskinel is a heavy metal band from Avellaneda, Buenos Aires, anchored by Alex "La Parka" Paskinel on bass and backing vocals alongside vocalist Maikol Kramer, guitarist Nico Roa, and drummer Alejandro "Pelu" Rocha. The band recorded their self-titled debut album in 2019 at La Taberna Studio in Buenos Aires, with mastering handled at Charlone Studio.

Led by vocalist Mario Pastore alongside guitarist Rafael Gazal, Pastore deliver traditional heavy metal rooted in the classic European mold — melodic, anthemic, and built for the long song. Their catalog includes The Price for the Human Sins and the 2017 album Phoenix Rising, the latter released on the Japanese label Spiritual Beast, and the band has appeared on tribute compilations honoring both Helloween and Iron Maiden.

Perpetual Force deal in straightforward heavy metal and hard rock with a classic-era sensibility, delivering riff-driven songs that lean on groove and melody over extremity. Their 2016 debut "Absolute Power" introduced their eight-track blueprint, with tracks exploring themes of religion, justice, and human fallibility.

Persevera built their 2023 debut "Genesis" unconventionally, releasing each of the album's thirteen tracks as a standalone single across two and a half years before compiling them into a 63-minute full-length. The result is a heavy, dense slab of traditional metal drawing comparisons to Grand Magus, with double rhythm guitars anchoring apocalyptic lyrical imagery drawn from the Book of Revelation.

Pethallian is the working name adopted by the Tatuí-based heavy metal project that has also operated as Pettalom, with both identities sharing the same membership and Bandcamp page. Under this banner the group released the album The Absinthe of the Apocalypse in 2012 and Ancient Bloody Europe in 2013, delivering a dark and melodic brand of traditional metal.

Phantom Menace traffic in occult-drenched speed and black metal with a vampyric edge, releasing a rapid string of singles and EPs in 2023 including All the Witches Hail, Chained in Lust, and the Night Galleries collection. Their raw, first-wave-informed attack pulls from the same vein as early Bathory and Venom with a Brazilian underground sensibility.