0 A.D. | A free, open-source game of ancient warfare0 A.D. is a free, open-source, historical real-time strategy (RTS) game where players lead ancient civilizations (like Romans, Greeks, Persians) from 500 BC to 0 AD.
MATCH the game Building cities, gathering resources (food, wood, stone, metal), training armies, researching tech, and fighting for supremacy, with a strong focus on historical accuracy, unique civs, and versatile “citizen soldiers” that can fight and build.
Developed by volunteers (Wildfire Games), it’s cross-platform (Windows, Mac, Linux) and offers single-player AI matches and multiplayer battles, aiming to be a true “Age of Empires” competitor without cost.