Portal 2 soundtrack can be downloaded free of cost here www.thinkwithportals.com/music.php. In my opinion, this is the greatest treat for music lovers in recent time. Critically acclaimed Portal 2 is a fantastic game and the soundtrack is a high quality release. It comes with three volumes.
While you're at it, check out my Youtube channel for more Portal goodness. My walkthrough of Portal is nearing its end.
This is the first part of my walkthrough series. However, I decided to add a twist into it. I bring you Portal: Classical Music Walkthrough Part 1.
If you wish to find out the rest of the story, tune into my channel.
Portal is a fine puzzle-platformer fps. A minimalist gameplay experience that will make you to scratch your head. Slow down, wait a minute, figure it out.