OS: Windows 10+, Windows Server is not supported
Memory: 500 MB RAM
Storage: 1000 MB available space
Sound Card: Microphone/Headset required for capturing voice commands
Additional Notes: Windows only supports voice recognition in these languages: English, French, German, Japanese, Chinese and Spanish
Go to: http://store.steampowered.com/ and download STEAM client
Click "Install Steam" (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don't have).
Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process.
After successful code verification go to the "MY GAMES" tab and start downloading.