Ah Portal 2, the gift that keeps on giving! After releasing Portal 2 Soundtrack Volume 1: Songs To Test By in May, Valve has outed a whole new batch of tracks to enjoy. Portal 2 Soundtrack Volume 2: Music To Test To.
The second volume of Portal 2 tunes features 18 tracks with all of them available as ringtones for Android and iPhone. If current cache of 40 songs from Portal 2 is not enough for you, Valve is already teasing a third soundtrack volume. Check out our favourite track from new album after the break.