Steam will release "steam trading cards" soon, sounds stupid I know, but with it will be the ability to trade cards for achievements or special offer coupons and the introduction of levels on steam, there are a lot of things you get with it and I don't have time to list them all, see the official steam page: http://steamcommunity.com/tradingcards/
Steam will release "steam trading cards" soon, sounds stupid I know, but with it will be the ability to trade cards for achievements or special offer coupons and the introduction of levels on steam, there are a lot of things you get with it and I don't have time to list them all, see the official steam page:
http://steamcommunity.com/tradingcards/