Metro Game Keys

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 "LIBRARY" tab and start downloading.

The Metro Saga Bundle includes all three games in the critically acclaimed Metro series - Metro 2033 Redux, Metro: Last Light Redux and Metro Exodus Gold Edition (featuring all bonus DLC)Journey from the shattered subway tunnels of Moscow to the far flung wastelands of post-apocalyptic Russia, and experience three of the finest single-player first person shooters of the past decade that combine to create one epic adventure. . .