Why the Forces of Hell Invade Sanctuary: Diablo Lore Explained

Activision Blizzard has structured the narrative framework of Diablo IV around a broken world set 50 years after the events of the Diablo III: Reaper of Souls expansion. This setting establishes a landscape where much of humanity has been eliminated and the opposing forces of Heaven and Hell are described as licking their wounds.

The central conflict of the title focuses on the return of Lilith, the daughter of Mephisto. As one of the creators of Sanctuary, the primary setting of the game, Lilith seeks to gain control over the region by corraling its remaining survivors to place the world under her authority.

The Creation and Evolution of Sanctuary

The narrative explores the origins of Sanctuary, which was created through the rebellion of the rogue angel Inarius, and Lilith. The two figures established the world as a refuge during a broader war between Heaven and Hell.

According to the game’s lore, the offspring of Inarius and Lilith originally existed as Nephalem. Over time, these beings evolved into the humans that inhabit Sanctuary. For a period, the Worldstone served as a mechanism to hide Sanctuary from the sight of both angels and demons, though the world has since become open to the eyes of both factions.

Narrative Structure and Player Role

The campaign of Diablo IV is divided into a prologue, six acts, and an epilogue. The story begins with the prologue, which demonstrates Lilith’s growing influence over the population of Sanctuary through the actions of villagers who attempt to sacrifice the player character.

Players take on the role of one of several heroes, such as a Necromancer or a Barbarian, who pursue Lilith across the monster-ridden hills and caves of Sanctuary. This pursuit is supported by the character Lorath Nahr, who provides context on Lilith’s broader plans.

A key element of the narrative is the introduction of the Horadrim. This group is described as scholars and mages tasked with the protection of Sanctuary from demonic threats. The player discovers a Strange Amulet that serves as a mark of this organization.

The State of the Eternal Conflict

The game’s plot examines the larger schemes between the wounded forces of Heaven and Hell. While the primary objective is to chase the antagonist, the story questions the actual intentions of Lilith and her role within the cosmic struggle.

The current state of the world is defined by several factors:

• The absence of the Worldstone’s protection, leaving Sanctuary vulnerable to celestial and infernal interference.
• The return of Lilith to the world she helped create.
• The escape of Inarius from Hell and his desire to be accepted back into Heaven.
• A diminished human population struggling to survive in a broken environment.