Get Portal For Free, Courtesy Of Valve

To celebrate the launch of Steam’s Mac client today, Valve are giving away Mac and PC versions of Portal for the low-low price of absolutely nothing.

Portal is one of the Mac platform’s launch titles (with the other being Torchlight) and as Tim noted “is utterly, utterly brilliant, and should be played by everyone.”

There really isn’t any excuse not to, as getting Portal for free is now as easy as going here and clicking the big red button to make all your dreams come true.

Assuming all your dreams involve getting Portal for free.

The offer extends until 24 May 2010.