Age of Empires II: HD Edition - The Forgotten

Age of Empires II HD: The Forgotten is an expansion pack for the real-time strategy game Age of Empires II: HD Edition. It is the second expansion to Age of Empires II: The Age of Kings and the first new expansion to the game in 13 years, but this one is exclusive to the HD Edition of the game available.

The Forgotten originated as an unofficial modification for the game known as Forgotten Empires. The expansion pack was developed by the team that created the mod with the assistance of Skybox Labs. It introduces five new civilizations (the Italians, Indians, Slavs, Magyars, and Incas), seven new campaigns, new units, new technologies, new gameplay modes, new maps, improved AI and other tweaks to gameplay.