This is fake. You can tell by the broken English and custom domain name.
Also them stating that is unusual practice (no need to say there are buttons).
I have no idea what this scam is but I suspect it is some kind of data mine scam. Once you reach the required number of visits (low) it will ask for personal details such as credit card details or information that allows allow identity theft to "unlock your game". You will not receive the games listed.
No one will give away games that are less than a year old for free.
EDIT
Wait a moment...
Did you enter your steam details on that site to "sign up"? Specificly email address and password for your steam account? If so, they have just been stolen by some scammers who will abuse your account (probably get it VAT banned). Change your password immediatly if this is the case. If not (no details needed for registering) it will definatly ask for such details when you try and "redeem" your game, this is where the scam is and they will not give you the game and steal your account.