Can’t get enough Portal 2? Well, lucky for you, Volume 1 of the game’s soundtrack, Songs To Test By, is available at the official Portal 2 website as a free download.
Just wait, there’s more. Valve has also promised two additional volumes in the Portal 2 soundtrack series will be released sometime in the future. The soundtrack is pretty impressive and currently dominating my iPhone, so for my fellow lovers of Portal 2, enjoy!