Windows:

• OS *: Windows® XP/Vista™ 32-bit
• Processor: Intel Pentium® 4 2.6 GHz or Athlon 64 +2800 (Intel Pentium 4 3.0 GHz or Athlon 64 +3200 recommended)
• Memory: 1 GB RAM under XP and 2 GB RAM under Vista (2GB recommended)
• Graphics: NVIDIA GeForce 6800 256MB or ATI Radeon X800 256MB or better (NVIDIA GeForce 7900 512MB or ATI Radeon X1900 512MB or better recommended)
• Sound: DirectX version 9.0c-compatible sound card
• Hard Drive: 5.5 GB
• DirectX®: DirectX version 9.0c (included) or higher
• Input Devices: OS-supported keyboard and mouse

* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.

 MacOS:

• OS: Mac OSX 10.6 or higher
• Processor: Intel Core Duo Processor (2GHz or better)
• Memory: 1 GB
• Hard Disk Space: 2.54 GB
• Video Card: ATI or NVIDIA video card with at least 256Mb VRAM
• Additional:15" or larger display is recommended

* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.

Windows:

• OS *: Windows® XP/Vista™ 32-bit
• Processor: Intel Pentium® 4 2.6 GHz or Athlon 64 +2800 (Intel Pentium 4 3.0 GHz or Athlon 64 +3200 recommended)
• Memory: 1 GB RAM under XP and 2 GB RAM under Vista (2GB recommended)
• Graphics: NVIDIA GeForce 6800 256MB or ATI Radeon X800 256MB or better (NVIDIA GeForce 7900 512MB or ATI Radeon X1900 512MB or better recommended)
• Sound: DirectX version 9.0c-compatible sound card
• Hard Drive: 5.5 GB
• DirectX®: DirectX version 9.0c (included) or higher
• Input Devices: OS-supported keyboard and mouse

* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.

 MacOS:

• OS: Mac OSX 10.6 or higher
• Processor: Intel Core Duo Processor (2GHz or better)
• Memory: 1 GB
• Hard Disk Space: 2.54 GB
• Video Card: ATI or NVIDIA video card with at least 256Mb VRAM
• Additional:15" or larger display is recommended

* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.