I was told that those who have registered at the website gamesas.com will get a key from Crysis3 MP Alpha. As a result, I waited, not specifically involved in pots on third-party sites. When it was already getting tired of waiting key by e-mail, decided to participate at the hands of other sites, in which they were... it was over, not what or where not given a =(
For fan Crysis, with the first part, it is very sad(((

Who knows where and how i can still get to the keys for Crysis 3 Alpha?

You can't. All keys are gone.

Not ALL keys are gone. The Geforce UK site is giving away 5,000 keys as we speak. You gotta look man, you can't be "patient" when it comes to Alphas and Betas. These things come and go and you gotta fight for your place in it. Get proactive man Signup for future newsletters so you're in the loop at all times.

This thread is being updated regularly with links to key giveaways: http://secure.gamesas.com/forums/viewtopic.php?f=58&t=52410