Matt writes - "Steam hasn’t got to where it is by resting on it’s laurels, but by pushing what people expect from a content distribution platform and adapting to current trends in gaming. Before, it was adding indie games. Today, they took the next step.
As of today, 5 different Free-to-play games are available on the platform, Spiral Knights, Forsaken Worlds, Champions Online: Free for All, Global Agenda: Free Agent, and Alliance of Valiant Arms (AVA).
On top of that, starting tomorrow (Wed.) with Spiral Knights, and concluding with AVA, each of the five titles with have exclusive in-game content to those who try the “F2P game of the day” on the Steam platform."