Steam News announces the arrival of free-to-play games on Steam, as they now offer five such titles, which include support for Steam Wallet micro-transactions. The five titles are Alliance of Valiant Arms, Champions Online: Free for All, Forsaken World, Global Agenda: Free Agent, and Spiral Knights, and Valve has cooked up a promotion to run over the next week as an incentive to not purchase these games from them, as opposed to not purchasing them elsewhere:

Beginning tomorrow (Weds) with Spiral Knights and concluding Sunday with AVA, each of the five launch titles will offer exclusive in-game content to those who try the "F2P game of the day" on Steam. In game transactions in all of the titles will be supported by Steam's micro-transaction backend system that is available to Steamworks partners and currently used in Valve's Team Fortress 2.