Valve corporation recently opened market for its players to buy and sell in-game items with cash. The main concept behind this idea is for players to transact without any third party's impedance. However Steam would be charging 5% fee on every transaction along with chargeable fees to specific games as well. Since this particular service launched recently as a beta phase, and with support for Team Fortress 2, there are limited items for sale in the store. Commodities such as keys, crates and mystery items are amongst some of the items up for exchange.