Diablo III: Eternal Collection, combining Reaper of Souls and Rise of the Necromancer, was released for PlayStation 4 and Xbox One in June 2017, and for the Nintendo Switch in November 2018.

The game utilizes classic dark fantasy elements and players assume the role of a heroic character charged with saving the world of Sanctuary from the forces of Hell.

[6] Unlike its predecessor, Diablo III requires players to be connected to the internet constantly due to their digital rights management policy, even for single-player games.

[19] Prior to release, Blizzard stated that nearly everything that drops on the ground, including gold, could be traded with other players either directly or through the auction house system.

[29] Players can participate by choosing from their existing characters, with access to all of the gear and skill they have gathered from playing the game in single-player or cooperative mode.

Disgusted with his fellow angels' unwillingness to protect humanity from the forces of Hell, Tyrael cast aside his divinity to become a mortal and warn Sanctuary about the arrival of the demon lords.

The Nephalem then returns to Caldeum to rescue Leah from Belial's forces, disguised as the guards of the young Emperor Hakan II, after which they escape into the city sewers.

After the head is retrieved, Leah revives the ghost of Zoltun Kulle, who agrees to deliver the Black Soulstone if the Nephalem helps him restore his body.

With that done, the Nephalem enters the stronghold, where Azmodan's forces have breached the lower levels, defeating the demon Ghom, the Lord of Gluttony.

After the battle, Tyrael decides to rejoin the Angiris Council as the new Aspect of Wisdom, but remains a mortal, dedicated to building a permanent alliance between angels and humans.

[8] The original artistic design differed from that shown at Blizzard Worldwide Invitational 2008 demonstration, and had undergone three revisions before reaching the standards felt necessary by the team behind Diablo III.

[45] It was announced that the game would be simultaneously released on both Windows and macOS platforms,[8] and would require a constant internet connection to play, even for single-player mode.

[53] On June 11, 2012, it was announced at the 2012 Apple Worldwide Developers Conference keynote that native retina display support would be coming to Diablo III.

[57] The first PvP addition to the game was in February 2013, as part of patch 1.0.7; a simple free-for-all system called "Brawling" and multiple item crafting options.

The patch contained a 16-level dungeon, four main bosses from the 1996 version and special graphics filters and 8-directions limited movement like the original game.

[70][71] Russell Brower wrote the original score for the game, with additional music being composed by Derek Duke, Glenn Stafford, Joseph Lawrence, Neal Acree, Laurence Juber, and Edo Guidotti.

[83] It used to be sold under the name "Big Pineapple" (大菠萝 Da Boluo) which sounds similar to Diablo in Mandarin Chinese in order to dodge the sales ban.

Originally after Diablo III's release the Starter Edition was only available through a guest pass code, which was included with the boxed versions of the game.

It features the fallen angel of wisdom Malthael as the expansion's main villain and is set in the city of Westmarch, which takes inspiration from many Gothic medieval locations.

A second expansion was being worked on at the time of Reaper of Souls' release, but was later abandoned by Blizzard with the developers predominantly moving over to World of Warcraft.

It's a vastly superior way to handle character abilities", and praised the overall gameplay, stating "the new systems really do make it a lot easier to enjoy Diablo III".

[110] Users have voiced criticism about the game's strong digital rights management which requires what is known as persistent online authentication, resulting in the lack of an offline single-player mode.

[111] Erik Kain, a Forbes contributing writer, stated that the requirement to remain online is not necessary for single-player mode and that Blizzard is abusing its position as a "juggernaut" and is setting a worrying precedent for the gaming industry.

[111] In response to questions about the lack of offline single-player, Diablo III senior producer Alex Mayberry said, "Obviously StarCraft II did it, World of Warcraft authenticates also.

[114] A GameArena critic questioned how Blizzard managed to "fail so spectacularly at creating reliable networking for Diablo 3" before going on to point out the lack of competitive multiplayer.

The lead producer Keith Lee responded to these criticisms and explaining the design choices by stating that "We feel that color actually helps to create a lot of highlights in the game so that there is contrast."

Awards, the 2012 PC release of Diablo III received nominations for "Role-Playing/Massively Multiplayer Game of the Year", and outstanding achievement in "Online Gameplay", "Original Music Composition", and "Sound Design".

[133] On June 15, 2012, French consumers group UFC Que Choisir announced that it had received 1,500 complaints in four days regarding connectivity issues with Diablo III.

[134] As a result of this, the organization asked Blizzard Entertainment to provide a permanent solution by June 30, 2012, and to "communicate completely and transparently about problems encountered in due time".

[135] On June 28, Blizzard replied to the Que Choisir that the box for Diablo III clearly labelled that a high-speed internet connection was required and that most of the stability issues had been fixed.