Sid Meier's Civilization® IV

Minimum: Windows 2000/XP, 1.2GHz Intel Pentium 4 or AMD Athlon processor or equivalent, 256MB RAM, 64 MB Video Card w/ Hardware T&L (GeForce 2/Radeon 7500 or better) DirectX7 compatible sound card, 1.7GB of free hard drive space, DirectX9.0c (included)
Recommended: Windows 2000/XP, 1.8GHz Intel Pentium 4 or AMD Athlon processor or equivalent/better, 512 MB RAM, 128 MB Video Card w/ DirectX 8 support (pixel and vertex shaders), DirectX7 compatible sound card, 1.7GB of free hard drive space, DirectX9.0c (included)

Recommended:

• OS: 10.12 (Sierra)
  
• Processor: Intel chipset
  
• CPU Speed: 2.0 GHz
  
• Memory: 512 MB RAM
  
• Hard Disk Space: 3.5 GB free disk space
  
• Video Card: (ATI): Radeon 9600 Video Card (NVidia): GeForce FX 5200
  
• Video Memory: (VRam): 128 MB RAM
  
• Multiplayer: Internet (TCP/IP) and LAN (TCP/IP) play supported. Internet play requires broadband connection.
  
• Media Required: DVD Drive Supported Video cards: NVIDIA GeForce 5200, 6600, 6800, 7800 ATI Radeon 9600, 9650, 9700, 9800, X600, X800, X850, X1600
  
• NOTICE: This game is not supported on volumes formatted as Mac OS Extended (Case Sensitive).