Football Manager 2013 (often abbreviated to Football Manager 13, or more commonly FM13) is a 2012 football management simulation video game developed by Sports Interactive and published by Sega. It was released on Microsoft Windows and OS X on 2 November 2012. Football Manager Handheld 2013 was subsequently published for PlayStation Portable on 30 November, and for iOS and Android on 13 December.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.