Released: June 11, 2002 Length: 65:08 Label: Sumthing Else Music Works Producers: Martin O'Donnell and Michael Salvatori

The CD booklet said that Halo's in-game music is very dynamic and changes whenever situations change during gameplay, requiring lots of mixing to make it play well in a static format. O'Donnell said about the album: "Themes, moods and even the duration of these pieces will change and adapt with each player's Halo experience. I took the liberty of remixing and rearranging all the music in order to make listening to the soundtrack more enjoyable."

1. Opening Suite - 3:35
2. Truth and Reconciliation Suite - 8:27
3. Brothers in Arms - 1:32
4. Enough Dead Heroes - 3:02
5. Perilous Journey - 2:28
6. A Walk in the Woods - 1:54
7. Ambient Wonder - 1:59
8. The Gun Pointed at the Head of the Universe - 2:28
9. Trace Amounts - 1:53
10. Under Cover of Night - 3:43
11. What Once was Lost - 1:43
12. Lament for Pvt. Jenkins - 1:16
13. Devils... Monsters... - 1:33
14. Covenant Dance - 1:59
15. Alien Corridors - 1:50
16. Rock Anthem for Saving the World - 1:20
17. The Maw - 1:08
18. Drumrun - 1:03
19. On a Pale Horse - 1:37
20. Perchance to Dream - 1:02
21. Library Suite - 6:49
22. The Long Run - 2:14
23. Suite Autumn - 4:24
24. Shadows - 1:01
25. Dust and Echoes - 2:51
26. Halo - 4:22