World of Warcraft: The War Within is a 2024 massively multiplayer online role-playing game expansion developed by Blizzard Entertainment for PC and Mac. Set in underground regions of Azeroth, the expansion takes players through subterranean environments and into the depths of the nerubian empire, where a villain known as the Harbinger of the Void is amassing arachnid forces. A central feature is Delves, instanced areas explorable solo or in groups of up to four players alongside an NPC companion, offering boss encounters and high-tier loot. The expansion also introduces Warbands, a system enabling account-wide progression that lets players share banks, renown, achievements, and collections across all characters tied to a Battle.net account. Additionally, each class specialization gains access to two new Hero Talent trees, drawing from established Warcraft archetypes to provide expanded character-building options.
