| ID | Interpret | Skladba | Album | |
| 1. | The Hamster Alliance | Required Test Protocol | Portal: Prelude Soundtrack |   |
| 2. | ERH | ABS O5 120 Harp | Portal: Prelude Soundtrack | |
| 3. | ERH | Atmosphere 1 | Portal: Prelude Soundtrack | |
| 4. | ERH | Strings SBRX2 45 | Portal: Prelude Soundtrack | |
| 5. | ERH | Nine Lies the Heart 5 | Portal: Prelude Soundtrack | |
| 6. | ERH | Atmosphere String 1 | Portal: Prelude Soundtrack | |
| 7. | ERH | Strings SBRX2 55 | Portal: Prelude Soundtrack | |
| 8. | ERH | Abs O5 080 Guitar | Portal: Prelude Soundtrack | |
| 9. | ERH | Atmosphere 2 | Portal: Prelude Soundtrack | |
| 10. | Silence | Larmes | Portal: Prelude Soundtrack | |
| 11. | ERH | C2R B2 1B Strings | Portal: Prelude Soundtrack | |
| 12. | ERH | ABS O5 120 Harp | Portal: Prelude Soundtrack | |
| 13. | Nine Inch Nails | 3 Ghosts I | Portal: Prelude Soundtrack | |
| 14. | The Hamster Alliance | Full Time Employee | Portal: Prelude Soundtrack | |
| 15. | The Hamster Alliance | System Error | Portal: Prelude Soundtrack | |
| 16. | The Hamster Alliance | Endless Chamber | Portal: Prelude Soundtrack | |
| 17. | The Hamster Alliance | Where am I? | Portal: Prelude Soundtrack | |
| 18. | The Hamster Alliance | Contemplation in Silence | Portal: Prelude Soundtrack | |
| 19. | The Hamster Alliance | Live Fire | Portal: Prelude Soundtrack | |
| 20. | The Hamster Alliance | The Cake is a Lie! | Portal: Prelude Soundtrack | |
| 21. | Nine Inch Nails | 7 Ghosts I | Portal: Prelude Soundtrack | |
| 22. | Nine Inch Nails | 9 Ghosts I | Portal: Prelude Soundtrack | |
| 23. | ERH | Atmosphere String 2 | Portal: Prelude Soundtrack | |
| 24. | Silence | Particule | Portal: Prelude Soundtrack | |
| 25. | ERH | Atmosphere 2 | Portal: Prelude Soundtrack | |
| 26. | ERH | Atmosphere 4 | Portal: Prelude Soundtrack | |
| 27. | ERH | Swell Pad | Portal: Prelude Soundtrack | |
| 28. | ERH | Discovering GlaDOS | Portal: Prelude Soundtrack | |
| 29. | ERH | Atmosphere 1 | Portal: Prelude Soundtrack | |
| 30. | ERH | Discovering GlaDOS | Portal: Prelude Soundtrack | |
