Family Guy: Back to the Multiverse is a third-person cooperative gameplay video game set to be released on November 20, 2012 in North America for Xbox 360, PlayStation 3 and PC. It's based on the Family Guy television series, most notably the episode Road to the Multiverse, and is also a continuation of The Big Bang Theory. It is rated M for Mature for blood, violence, drug use, mature humor, and sexual content/themes. This game also features the return of Stewie's evil half-brother Bertram, who was killed in the show.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.