Crytek has just announced Homefront: The Revolution as a new first-person shooter game that will feature native Linux support with the CryENGINE and launch on the same-day as for other platforms.
Crytek explains this "Homefront: The Revolution" free-roam FPS game as:
Four years into the brutal military occupation, America is on its knees. Philadelphia - once the birthplace of Independence - has become a ghetto, where surveillance drones and armoured patrols keep the population at heel, crushing any dissent with savage force. Her once-proud citizens live in a police state, forced to collaborate just to survive, their dreams of freedom long since extinguished.
The Steam developers usually make a number of intermediary releases before a stable and a large version of the application are launched. The current update is just one of these versions and, even if it's a Beta, some users might notice improvements.
Valve takes its time when it comes to improving the Steam client and its updates take care of just a few things. This way, it is easy to spot a problem if something goes wrong after an update for the software.