0 A.D. is a free, open-source, historical Real Time Strategy (RTS) game currently under development by Wildfire Games, a global group of volunteer game developers. As the leader of an ancient civilization, you must gather the resources you need to raise a military force and dominate your enemies.
System Requirements:
List:
Version: XP, Vista, 7 or 8
Processor: 1 GHz Intel or x86 compatible
Memory: At least 512 MB
Graphics Card: Any supporting OpenGL 1.3 with 3D hardware accelerated drivers and at least 128 MB memory, e.g., Radeon 9000, GeForce 3, or similar
Screen resolution: 1024×768 or above