This is an Expansion for the Real Time Strategy title, Age of Empires II: Definitive Edition, released in 2021, requiring the base game for access. It substantially enhances the core experience by introducing three new playable civilizations, each with unique bonuses, technologies, and units, alongside three new historical campaigns focused on Central and Eastern European history. The content integrates directly into the existing framework, adding strategic depth for established players across all standard game modes.