Minimum System Requirements
Windows
OS:
Windows Vista
Processor:
2 GHz Dual Core
Memory:
2 GB RAM
Graphics:
NVIDIA GeForce 8600 GT / ATI Radeon HD 2600 XT or greater
Storage:
20 GB HD space
Notes:
9.0; DirectX Compatible; Initial installation requires one-time internet connection for Steam authentication; software installations required (included with the game) include Steam Client, Visual C++ 2008 Redistributable, DirectX and Microsoft .NET 4.
macOS
OS:
10.8.5 (Mountain Lion)
Processor:
2.0 GHz Intel Core 2 Duo (Dual-Core)
Memory:
4 GB RAM
Graphics:
AMD HD4000 / NVIDIA 9000 Series (See NOTICE for details)
Storage:
20 GB
Notes:
Broadband Internet Connection.
Linux
OS:
Ubuntu 14.04 (64 bit required)
Processor:
2GHz
Memory:
4GB Memory
Graphics:
512MB
Storage:
16GB HD space
Recommended System Requirements
Windows
OS:
Windows 7
Processor:
2 GHz Dual Core (Intel Core 2 Duo 2.4 GHz or Athlon X2 2.7 GHz)
Memory:
4 GB RAM
Graphics:
NVIDIA GeForce 9000 series / ATI Radeon HD 3000 series or greater
Storage:
20 GB HD space
Notes:
9.0; DirectX Compatible; Initial installation requires one-time internet connection for Steam authentication; software installations required (included with the game) include Steam Client, Visual C++ 2008 Redistributable, DirectX and Microsoft .NET 4.
macOS
OS:
10.9.1 (Mavericks)
Processor:
2.4 GHz Intel Core 2 Duo (Dual-Core)
Memory:
8 GB RAM
Storage:
20 GB
Notes:
Broadband Internet Connection.
Linux
OS:
Ubuntu 14.04 (64 bit required)
Processor:
3 GHz
Memory:
8GB Memory
Graphics:
1GB
Storage:
16GB HD space
These are the requirements the publisher lists on Steam.
