As the first major expansion for the core Role-Playing Game, this 2007 content package significantly enhances the base experience, requiring the parent title for access. Gameplay centers on exploring the shattered world of Outland to combat the returning Burning Legion. Distinctive features include raising the level cap, introducing the Blood Elf and Draenei playable races, and adding numerous new zones, dungeons, and quests. This content offers a substantial continuation of the established adventure.
The atmosphere shifts dramatically as players navigate the desolate landscapes of Outland, battling not only the demonic invaders but also the forces loyal to Illidan Stormrage, who has claimed dominion over the broken realm. The narrative explores new factions and histories, including encounters with the Mag'har orcs on Hellfire Peninsula, who represent a branch of orcs uncorrupted by past influences.
The level cap is increased, allowing dedicated players to advance their characters further into the new content tiers. This progression is tied directly to mastering the challenges presented across the new zones and high-level dungeons introduced within Outland.
As the first major expansion, this content is substantial, offering content depth comparable to a significant standalone adventure, though it remains entirely integrated into the existing framework of the parent game. It is not a standalone title; access requires the base game. The content is designed to seamlessly continue the established adventure, pushing the narrative forward and providing a significant continuation of the character progression journey.
This specific release is a singular expansion package. It does not include any further downloadable content or subsequent expansions within its scope.
The content of this game is suitable for persons aged 12 years and over only. It contains: Non realistic looking violence towards human characters - Mild bad language

Fresh from his defeat in Outland, Kael'thas Sunstrider returned to the blood elf city of Silvermoon. Rather than lead his people to glory as he had promised, the disgraced prince betrayed them. Kael'thas plotted to use the legendary Sunwell, source of the blood elves' magical power, to summon the demon lord Kil'jaeden into Azeroth. Aided by a joint task force of blood elves and draenei, the Shattered Sun Offensive, Horde and Alliance heroes narrowly stopped both Kael'thas and Kil'jaeden, purifying the Sunwell with the help of the draenei prophet Velen.

Following years of battles alongside the old Horde, the troll warlord Zul'jin retired to the city of Zul'Aman, capital of the Amani trolls, where he called upon mysterious dark powers to rebuild his army. While the eyes of Azeroth focused on the fight against the Burning Legion and the expedition to Outland, treasure-seekers invaded Zul'Aman, rekindling Zul'jin's hatred of the outside world - particularly the high elves of Quel'Thalas. Upon hearing that these newly christened "blood elves" had become part of the Horde in his absence, the infuriated Zul'jin declared war on both Horde and Alliance.

In his quest to reign over all of Outland, Illidan the Betrayer had established a mighty stronghold for his forces within the Black Temple, a former draenei citadel. Yet his influence began to wane after the defeat of his most trusted lieutenants, including the traitorous former leader of the blood elves, Kael'thas Sunstrider. The resulting window of opportunity permitted Akama, an elder sage of devolved draenei known as the Broken, to rebel against the self-styled "Lord of Outland." Along with Illidan's former jailor, the stoic night elf Maiev Shadowsong, Akama helped a group of heroes infiltrate Illidan's seat of power and put an end to the Betrayer's reign once and for all.