The game is well-regarded for its historical accuracy, even including a quiz minigame to test what you’ve learned about real Egyptian history. Why the Old Kingdom Matters

For history buffs and strategy gamers alike, the of Egypt (c. 2686–2181 BC) represents the world’s first "Golden Age". It was the era of the first powerful Pharaohs, the construction of the Great Pyramids at Giza, and the birth of a centralized government in Memphis.

The file you're referring to, , is a unique piece of downloadable content (DLC) for the strategy game Egypt: Old Kingdom by Clarus Victoria. This "Master of History" mode is designed to be a highly customizable educational and simulation tool that lets you explore ancient Egyptian history without the standard game constraints.