Join Lara Croft on her first great tomb raiding expedition as she seeks to discover the secret of immortality. Featuring high-octane action set in the most beautiful and hostile environments on earth, Rise of the Tomb Raider delivers cinematic survival action-adventure.
Action, Adventure, Third-Person Shooter
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.