In the year 1986, Tommy Vercetti is heavily indebted to his mafia superiors after a drug deal gone awry, but his dreams of taking over Vice City (based on Miami) push him down a different path. Featuring a wide variety of vehicles and weapons, radio stations playing hit songs from the era and an intense atmosphere, GTA: Vice City is an open-world sandbox satire of '80's Miami.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.