Cities: Skylines Game Keys

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 "LIBRARY" tab and start downloading.

The vibrant city may be slowing down to go to sleep, but you’re just getting started, jamming along to 16 electronic tracks as you prowl past flickering neon lights in windows while the late train keeps a perfect beat as it speeds past. Rail Hawk Radio is your underground station of choice when you are getting ready to start a night of making vivid memories.