Lara Croft and the Guardian of Light is a platform action video game developed by Crystal Dynamics and published by Square Enix for Microsoft Windows, PlayStation 3, Xbox 360 and iOS as part of the Tomb Raider series through digital distribution. Unlike previous games in the series, the game does not carry the Tomb Raider brand and has a heavy emphasis on cooperative gameplay. In multiplayer, players take the role as either Lara Croft or a 2,000-year-old Mayan warrior named Totec. They must work together in order to stop the evil spirit Xolotl and retrieve the Mirror of Smoke. A single-player campaign mode is available that does not include the non-playable character AI following or helping Lara.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.