Blizzard Entertainment officially announced Diablo III during BlizzCon 2008, generating excitement among fans of the Diablo series.
Diablo III was officially released worldwide for Windows and macOS, marking the launch of the much-anticipated sequel to Diablo II.
The Reaper of Souls expansion pack for Diablo III was released, adding new content including the Act V campaign, the Crusader class, and Adventure Mode.
Diablo III was released on PlayStation 3 and Xbox 360 consoles, expanding the game's availability beyond PC and Mac platforms.
Patch 2.0.1 was launched introducing the Loot 2.0 system, which significantly improved itemization and gameplay experience, revitalizing the player base.
The Diablo III: Eternal Collection, including the base game and the Reaper of Souls expansion, was released for PlayStation 4 and Xbox One.
The cosmic conflict between the High Heavens and Burning Hells takes place, culminating in the creation of Sanctuary and the birth of the Nephalem.
The powerful hybrid offspring of angels and demons are born, possessing immense power which is feared and subsequently suppressed by their angelic and demonic ancestors.
The Horadrim, an order of mages, are formed to imprison the Prime Evils and protect Sanctuary from demonic threats.
The town of New Tristram's bastion comes under attack by demonic forces led by Maghda, a witch allied with the Prime Evil Diablo.
A hero arises, defeating the forces of hell invading Sanctuary and eventually confronting Diablo himself.
The Nephalem hero defeats the Prime Evil Diablo, who is then trapped inside the Black Soulstone by the Horadrim.
The Black Soulstone shatters releasing fragments of the Prime Evil's essence, causing demonic unrest and chaos in Sanctuary.
Bael, Mephisto, and Diablo attempt to return to power using the fragments of the Black Soulstone.
Malthael, the Angel of Death, steals the Black Soulstone for his own ends but is ultimately defeated by the Nephalem hero.