Windows:

• OS *: Windows Vista SP2 / 7 SP1 / 8 / 8.1 / 10
• Processor: 2.7 GHz AMD / Intel dual-core processor (AMD Athlon II X2 250 and Intel Pentium Core 2 Duo E6750 or higher)
• Memory: 4 GB RAM
• Graphics: 512 MB ATI/NVIDIA (HD3870 and NVIDIA 8800GT / DirectX 10 compatible or better)
• DirectX: Version 11
• Storage: 4 GB available space
• Sound Card: Integrated or dedicated DirectX 9 compatible soundcard

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

 MacOS:

• OS: Mac OS X 10.7.5 Lion
• Processor: Intel Core i5-3230M (dual-core + HT) @2600MHz
• Memory: 4 GB RAM
• Graphics: NVIDIA GeForce GT 650M / Intel Iris Graphics
• Storage: 4 GB available space
• Sound Card: Core Audio compatible

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

SteamOS+Linux:

• OS: Ubuntu 14.04, Mint 17.0 / 64 Bit
• Processor: 3.0 GHz AMD Quad-Core / Intel Quad-Core
• Memory: 4 GB RAM
• Graphics: 512 MB ATI/NVIDIA HD3870 and NVIDIA 8800GT / OpenGL 3.2 compatible
• Storage: 4 GB available space
• Sound Card: OpenAL compatible

Windows:

• OS *: Windows 7 SP1 / 8 / 8.1 / 10
• Processor: 3.4 GHz AMD Quad-Core / Intel Dual-Core (Intel Core i3 2nd Gen / AMD Phenom II X4 965 or higher)
• Memory: 4 GB RAM
• Graphics: 1 GB ATI/NVIDIA (ATI/AMD Radeon HD6850 and NVIDIA GeForce GTX560 or higher) / DirectX 10 compatible
• DirectX: Version 11
• Storage: 4 GB available space
• Sound Card: Integrated or dedicated DirectX 9 compatible soundcard

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

 MacOS:

• OS: Mac OS X 10.10 Yosemite
• Processor: Intel Core i7 (quad-core + HT) @ 2300MHz
• Memory: 4 GB RAM
• Graphics: NVIDIA GeForce GT 750M
• Storage: 4 GB available space
• Sound Card: Core Audio compatible

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

SteamOS+Linux:

• OS: Ubuntu 14.04, Mint 17.0 / 64 Bit
• Processor: 3.4 GHz AMD Quad-Core / Intel Quad-Core (Intel Core i5-3570K / AMD Phenom II X4 965 or higher)
• Memory: 4 GB RAM
• Graphics: 1 GB ATI/NVIDIA (ATI/AMD Radeon HD6850 and NVIDIA GeForce GTX560 or higher) / OpenGL 3.2 compatible
• Storage: 4 GB available space
• Sound Card: OpenAL compatible