The PC version requires Windows XP SP2 or newer operating system. You can download FREE demos of the original Angry Birds game and Angry Birds Rio. You’ll need to pay ($4.95 each) for the activation key to unlock all levels though.
Angry Birds is arguably the most talk about video game in the past 18 months. The game was first released on Apple iOS in late 2009 and is now available on most major mobile, computer and gaming platforms. Rovio (the developer) is planning to expand the game into a media franchise with animated series and motion pictures etc.