The following games are included in the 25th Anniversary Collection:
- Age of Empires: Definitive Edition
- Age of Empires II: Definitive Edition
- Age of Empires II: Definitive Edition - Lords of the West
- Age of Empires II: Definitive Edition - Dawn of the Dukes
- Age of Empires II: Definitive Edition - Dynasties of India
- Age of Empires III: Definitive Edition
- Age of Empires III: Definitive Edition - United States Civilization
- Age of Empires III: Definitive Edition - Mexico Civilization
- Age of Empires III: Definitive Edition - The African Royals
- Age of Empires III: Definitive Edition - Knights of the Mediterranean
- Age of Empires IV: Anniversary Edition