Sales According to Max Schaefer, Blizzard's initial sales estimates for
Diablo were modest. He remarked, "We were thinking that if everything went well, we would sell 100,000 copies." Following the game's positive press coverage before its release, estimates by the team were increased to roughly 500,000 copies, David Brevik later said.
Pre-orders had surpassed 450,000 units globally by December 17, at which point the game was set to launch with a shipment of 500,000 units staggered across its initial days on shelves.
Diablo debuted at #1 on
PC Data's monthly computer game sales chart for January 1997. It held the position for another three months, before being displaced to #2 by
X-Wing vs. TIE Fighter in May.
Diablo remained in second place until September, when it dropped to fifth. It exited the top 10 that October. In the United States, the game was the highest-selling computer title of the first six months of 1997. Its worldwide sales surpassed 500,000 units by April, 750,000 by June and 1 million by late November. By the end of 1997,
Diablo had sold 670,155 copies in the United States alone. It was declared the country's fourth-best-selling computer game of the year by PC Data. Schaefer attributed the game's success in part to its December 27 shipment date, and noted that "there weren't any other games released after Christmas, so we were the only game in town for a long time."
Diablo took 13th place in the rankings for February 1998. It remained in the top 20 for another month, dropped out in April and reappeared in June. rising to #3 in August. The game's average sale price during the January–June period was $36; In August 1998,
Diablo received a "Gold" sales award from the Verband der Unterhaltungssoftware Deutschland (VUD), indicating sales of at least 100,000 units across Germany, Austria and Switzerland.
Diablos global sales reached almost 2 million units by September 1998. One year later, its sales in the United States alone had grown to 1.17 million copies, which made it the country's seventh-highest computer game seller since January 1993. This number rose to 1.3 million copies by March 2000. Remarking upon these sales,
GameSpots writer Desslock hailed
Diablo as an "undisputed commercial blockbuster". The game returned in 2000 to PC Data's annual top 20 for the United States, with 260,020 copies sold. Worldwide,
Diablo broke 2 million sales by mid-2000 and reached 2.3 million by January of the next year. Ultimately, the game sold over 2.5 million units by mid-2001. According to
GameSpot Japan, the game was a "big hit" among Japanese players.
Critical reviews Diablo has received critical acclaim, with an average rating of 94/100 on
Metacritic. Reviewers commonly cited the online multiplayer aspect as one of the strongest points of the game, with it being described as greatly extending its replay value.
Computer Games Magazines Cindy Yans said that "weapons, armor and items are so numerous that you're
always acquiring something new to try... not to
mention the game's multiplayer universe"; she went on to say that "for anyone who enjoys a good multiplayer
dungeon crawl,
Diablo can't be beat". Yans finished her review, "Despite the rather pale storyline, [...] watered-down quests and a fair amount of necessary repetition,
Diablo is a must for anyone interested in 'just plain fun.'" Ward stated: "Diablo is the best game to come out in the past year, and you should own a copy. Period." Steve Klett's review for
PC Games, which was reprinted in sister magazine
GamePro, commented that "
Diablos definitely not your typical dungeon hackfest. ... In fact, its closest rivals are games like
Gauntlet and
Loaded on the PlayStation, but they really don't compare."
Next Generation similarly remarked that
Diablo is more of a modern incarnation of
Gauntlet than an RPG, "but with enough changes and improvements to make it a completely new experience, and one of the best titles so far this year." However,
IGNs Doug Perry was dissatisfied with the controls, saying they slow the game's pace. Perry also opined that the multiplayer should have used
split screen or the
PlayStation Link Cable rather than require the two player characters to stay on one screen, though he said the conversion improved on the PC version in some respects as well, such as the option to double the game's speed. Andy Butcher reviewed
Diablo for
Arcane magazine, rating it an 8 out of 10 overall, and stated that "you have a superb game. In terms of design it may be little more than a third-person perspective version of
Doom with character development, but that doesn't stop
Diablo from being great fun."
Diablo won the overall "Game of the Year" awards of
Computer Gaming World,
GameSpot and
Computer Game Entertainment for 1996, and was a runner-up for
Computer Games Strategy Pluss award in this category. The editors of
Computer Gaming World wrote, "For this year,
Diablo is the game that everyone will remember."
Akira Nishitani ranked it number 1 on his personal list of the greatest games of all time in 1997. In 2005 GameSpot chose
Diablo as one of "The Greatest Games of All Time". It was placed at No. 20 on
Game Informers "Top 100 RPGs Of All Time" list. ''
Men's Journal'' published an article in April 2026, for the game's 30th anniversary, highlighting how it is "consistently ranks as one of the greatest games ever made and is widely regarded as the title that popularized
ARPGs" thanks to its replayability and dark tone "resonating with fans" of the series. ==Expansions, ports, re-releases==