Valve announces that Steam Trading Cards are now in beta, offering virtual cards that can be redeemed for game badges and other virtual commodities:

May 15, 2013 -- Valve, creators of best-selling game franchises (such as Counter-Strike, Half-Life, Left 4 Dead, Portal, and Team Fortress) and leading technologies (such as Steam and Source), today announced Steam Trading Cards, a new service that rewards gamers for gaming on Steam.

Released in beta today, Steam Trading Cards allows customers to earn Steam rewards for playing the games they love. Those who participate will receive game-specific trading cards that can be collected to earn rewards such as game badges, profile backgrounds, emoticons, coupons, and more.

The group of titles participating in the Steam Trading Cards beta includes Don't Starve, Dota 2, Counter-Strike: Global Offensive, Team Fortress 2, Portal 2 and Half-Life 2. The service will expand over the coming months to include many more titles on Steam.

For more information on Steam Trading Cards visit http://steamcommunity.com/tradingcards/