Alex informed us that there is a new beta of Sanctioned Renegades available, a fps playable directly in the browser available for windows and macintosh.
On the website is stated that the windows version is also playable without using a browser.
A guy in the forum made me notice this game, which in his current beta state is free to play. The game is made with Unity, a browser plug-in which allow to play 3d games directly in the browser.