Empire Earth is a real-time strategy video game released in 2001. Players guide a civilization through different historical epochs, from the prehistoric age to the future. The game features resource management, city building, and military strategy, allowing players to engage in battles and expand their empires. The gameplay includes various civilizations, each with unique units and technologies. Players can choose to play in single-player campaigns or multiplayer modes. Empire Earth is known for its depth and complexity, offering a wide range of strategies and tactics to explore as players advance through the ages.