![Steam on mac](http://sanziro.com/wp-content/uploads/2010/05/steam_on_mac.png)
Valve has released one of the biggest PC classic first-shooter game Half-Life 2 on the Mac on its [Steam gaming platform](http://store.steampowered.com/). It is now at a launch offer of US$6.99.
To celebrate the launch of Half-Life 2 on Mac, Valve has a commercial.
If you find the Half-Life 2 for Mac commercial familiar, check out this: