Age of Kings is a real-time strategy game developed by Ensemble Studios and released in 1999. It is set in the Middle Ages and allows players to control one of several civilizations, each with unique units and technologies. The game features various modes, including single-player campaigns and multiplayer battles. Players gather resources, build structures, and train armies to conquer opponents. The game emphasizes strategic planning and resource management, as players advance through different ages, unlocking new technologies and units. Age of Kings is part of the Age of Empires series and remains popular for its engaging gameplay and historical themes.