With roughly 35,000 votes being cast in an online poll, Master Of Puppets topped the list, followed by Guns N' Roses' 1987 classic Appetite For Destruction coming second, and AC/DC's Back In Black third.
"In the 80s, a lot of mainstream metal sounded lame," says Louder's Content Director Scott Rowley. "It was the era of Reagan and Thatcher, AIDs and apartheid, and they were all singing about girls and worrying about their hair.
"Metallica's first three albums sounded livid in comparison – frustrated, angry and defiant – the perfect soundtrack for the times.
"Master Of Puppets started like the score for a spaghetti western and by the time it finished eight tracks later, the world had changed just a little."
Metallica recently announced the third leg of the WorldWired tour, which will take place in 2019.
They’ve lined up a total of 25 stadium shows which will get under way in Lisbon, Portugal, on May 1, and conclude with a performance in Mannheim, Germany, on August 25. Ghost and Bokassa will have been named as special guests. You can see full dates at the bottom of the page.
You can now pick up Metallica's best album in an all-mod-cons, reissued box set. Stuffed full with extra tracks, cassettes, a hardback book and any number of other bells and whistles, this reissue can be found in either CD or vinyl editions.
Metallica WorldWired UK and European stadium tour
May 01: Lisbon Estádio do Restelo, Portugal
May 03: Madrid Valdebebas, Spain
May 05: Barcelona Estadi Olímpic Lluís Companys, Spain
May 08: Milan San Siro Hippodrome, Italy
May 10: Zürich Letzigrund, Switzerland
May 12: Paris Stade De France, France
Jun 08: Dublin Slane Castle, Ireland
Jun 11: Amsterdam Johan Cruijff Arena, Netherlands
Jun 13: Cologne RheinEnergieStadion, Germany
Jun 16: Brussels Koning Boudewijnstadion, Belgium
Jun 18: Manchester Etihad Stadium, UK
Jun 20: London Twickenham Stadium, UK
Jul 06: Berlin Olympiastadion, Germany
Jul 09: Gothenburg Ullevi, Sweden
Jul 11: Copenhagen Telia Parken, Denmark
Jul 13: Trondheim Granåsen, Norway
Jul 16: Hameenlinna Kantolan Tapahtumapuisto, Finland
Jul 18: Tartu, Raadi Airport, Estonia
Jul 21: Moscow Luzhniki Stadium, Russia
Aug 14: Bucharestv Arena Națională, Romania
Aug 16: Vienna Ernst-Happel-Stadion, Austria
Aug 18: Prague Airport Letnany, Czech Republic
Aug 21: Warsaw PGE Narodowy, Poland
Aug 23: Munich Olympiastadion, Germany
Aug 25: Mannheim Maimarktgelande, Germany