Under the “Games” tab, look for the “Free to Play” tab and click on it.
For those who would pay with e-money, your username and password are the only ones needed. Enter the necessary purchase details, such as your card number and the like.If you’re buying it as a gift, you can send them the information via e-mail or allow them access through Steam. Choose “Purchase for me” if you’re buying for yourself.When you’re ready to check out, access your cart in the upper-right corner, above the search bar.
Press the “Add to Cart” button to add a game in your “cart”.