New Steam Update Lets Players Trade Hats for Games

A beta update for Steam lets gamers trade virtual items for unused digital copies of games. Released Tuesday, the upgrade to Valve’s digital-distribution platform could co-opt a thriving black market in which players swap unwanted games for prized in-game extras.
Valve introduced hats — novelty pieces of headwear for game characters — to its cartoon-styled multiplayer [...]

Source: http://www.wired.com/gamelife/2011/08/steam-trading-update/

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