In its debut day on shelves, Diablo II sold 184,000 units.[47] PC Data, which tracked sales in the United States, placed Diablo II's sales during the June 25–July 1 period at 308,923 copies, including sales of its Collector's Edition. This drew revenues of $17.2 million.[48] The game's global sales reached 1 million copies after two weeks,[49] and 2 million after one and a half months.[50] Domestically, it sold 790,285 units and earned $41.05 million by the end of October 2000, according to PC Data. Another $4.47 million were earned in the region by that date via sales of the Collector's Edition.[51] In April 2001, the game received a "Double-Platinum" sales award from the Verband der Unterhaltungsoftware Deutschland (VUD), indicating sales of at least 400,000 units in Germany.[52]
It was awarded a spot in the Guinness Book of World Records 2000 edition for being the fastest selling computer game ever sold, with more than 1 million units sold in the first two weeks of availability.[39] Its sales during 2000 alone reached 2.75 million globally;[53] 33% of these copies were sold outside the United States, with South Korea making up the largest international market.[54] Warcraft III: Reign of Chaos, World of Warcraft: The Burning Crusade, World of Warcraft: Wrath of the Lich King, World of Warcraft: Cataclysm and Diablo III have since surpassed Diablo II's record to become fastest-selling computer games ever at their times of release, according to Blizzard.[55][56] As of June 29, 2001, Diablo II has sold 4 million copies worldwide.[57]
In the United States, Diablo II sold 1.7 million copies and earned $67.1 million by August 2006, after its release in June 2000. It was the country's second best-selling computer game between January 2000 and August 2006. Combined sales of all Diablo games released between January 2000 and August 2006, including Diablo II, had reached 4.5 million units in the United States by the latter date.[58] It received a "Gold" sales award from the Entertainment and Leisure Software Publishers Association (ELSPA),[59] indicating sales of at least 200,000 copies in the United Kingdom.[60] Copies of Diablo: Battle Chest continue to be sold in retail stores, appearing on the NPD Group's top 10 PC games sales list as recently as 2010.[61] Even more remarkably, the Diablo: Battle Chest was the 19th best selling PC game of 2008[62] – a full seven years after the game's initial release – and 11 million users still played Diablo II and StarCraft over Battle.net in 2010.[63]