Diablo Immortal is set between the events of Diablo II and Diablo III, following the destruction of the Worldstone by Tyrael. Its shattered fragments are scattered across Sanctuary, corrupting the land and drawing demonic forces seeking to harness their power. Players take on the role of heroes from various classes, banding together to stop the resurgence of evil led by the demon Skarn, one of Diablo’s lieutenants, who aims to resurrect his master. Along the way, players uncover hidden lore, battle ancient evils, and fight to prevent Sanctuary from falling into chaos once more.