A first-person shooter with secondary combat abilities and tower defence elements set after the events of BioShock (2007) in which a Big Daddy prototype named Subject Delta seeks to be reunited with his former appointed Little Sister, Eleanor, and forces through the deadly halls and locales of the underwater city of Rapture, now ruled by a collectivist psychiatrist named Sophia Lamb.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.