World of Warcraft: The Gates of Ahn'Qiraj

Released in 2006, this content update for the established MMORPG focuses on large-scale cooperative PvE encounters within the desert fortress of Ahn'Qiraj. The core loop involves group strategy and coordination for challenging raid progression. A distinctive feature of this release was the server-wide "War Effort," requiring collective player contribution to unlock access to the new endgame zones and equipment.