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.

Get in the groove with some stellar tunes from Synthetic Dawn, the most far-out radio station to land in Cities: Skylines, ever! This channel features 16 original new songs, both instrumental and vocal jams, spanning four unique genres: 80s Electro, Vocoding Electro, Breakbeats and Futuristic Synths. Tune in and zone out as synth-spin master DJ Jessica Statler brings the funk to Synthetic Dawn Radio.