Marvel's Avengers 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.

Assemble your team of Earth’s Mightiest Heroes, embrace your powers, and live your Super Hero dreams. Marvel’s Avengers is an epic, third-person, action-adventure game that combines an original, cinematic story with single-player and co-operative gameplay*. Assemble into a team of up to four players online, master extraordinary abilities, customize a growing roster of Heroes, and defend the Earth from escalating threats. Marvel’s Avengers begins at A-Day, where Captain America, Iron Man, the Hulk, Black Widow, and Thor are unveiling a new, hi-tech Avengers Headquarters in San Francisco. The celebration turns deadly when a mysterious enemy causes a catastrophic accident which results in massive devastation. Blamed for the tragedy, the Avengers disband. Five years later, with all Super Heroes outlawed and the world in peril, a sprawling adventure ignites when a determined young woman named Kamala Khan sets out to reassemble and rebuild the Avengers to stop the unchecked power of the secretive new force known as AIM. Marvel’s Avengers continues the epic journey with new Heroes and new narrative delivered on an ongoing basis, for the definitive Avengers gaming experience. *One-time online access required for single-player campaign; online access required for multiplayer and to download post-launch content. Free Square Enix Members account required.