Cei de la Valve au oferit spre download, în mod gratuit, coloana sonoră a jocului Portal 2. Aceasta este formată din nu mai puţin de 22 de melodii, însumând peste 73 de minute de muzică.

1. Aperture Science Psychoacoustics Laboratory - Science is Fun (2:33)
2. Aperture Science Psychoacoustics Laboratory - Concentration Enhancing Menu Initialiser (2:16)
3. Aperture Science Psychoacoustics Laboratory - 9999999 (3:11)
4. Aperture Science Psychoacoustics Laboratory - The Courtesy Call (3:37)
5. Aperture Science Psychoacoustics Laboratory - Technical Difficulties (3:21)
6. Aperture Science Psychoacoustics Laboratory - Overgrowth (2:50)
7. Aperture Science Psychoacoustics Laboratory - Ghost of Rattman (4:06)
8. Aperture Science Psychoacoustics Laboratory - Haunted Panels (1:36)
9. Aperture Science Psychoacoustics Laboratory - The Future Starts With You (3:21)
10. Aperture Science Psychoacoustics Laboratory - There She Is (4:20)
11. Aperture Science Psychoacoustics Laboratory - You Know Her? (3:10)
12. Aperture Science Psychoacoustics Laboratory - The Friendly Faith Plate (2:59)
13. Aperture Science Psychoacoustics Laboratory - 15 Acres of Broken Glass (4:59)
14. Aperture Science Psychoacoustics Laboratory - Love as a Construct (4:57)
15. Aperture Science Psychoacoustics Laboratory - I Saw a Deer Today (3:13)
16. Aperture Science Psychoacoustics Laboratory - Hard Sunshine (2:48)
17. Aperture Science Psychoacoustics Laboratory - I'm Different (4:28)
18. Aperture Science Psychoacoustics Laboratory - Adrenal Vapor (2:36)
19. Aperture Science Psychoacoustics Laboratory - Turret Wife Serenade (1:38)
20. Aperture Science Psychoacoustics Laboratory - I Made It All Up (3:56)
21. Aperture Science Psychoacoustics Laboratory - Comedy = Tragedy + Time (3:29)
22. Aperture Science Psychoacoustics Laboratory - Triple Laser Phase (4:15)