Call of Duty: Ghosts 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.

Invasion - the third DLC Pack for Call of Duty®: Ghosts. DEPARTED A medium-sized map set in a rural Mexican town amidst the Dia de los Muertos (the Day of the Dead) celebration. PHARAOH In an archeological site of an Egyptian palace this medium sized map includes a collapsing monument, urns full of flesh-eating scarabs, and other surprises. MUTINY Set in a cove on a Caribbean island. Mutiny comes packed with “treasures” for you to discover. FAVELA Favela is a refreshed version of the fan-favorite MW2 map. Extinction - Episode 3: Awakening Descend into the perilous depths of an alien underworld. There you will encounter new Cryptids: Gargoyles, Bombers, and Mammoths that guard the Ancestors’ lair.