Black Mesa Xen Original Soundtrack (Definitive Edition)
| Composed by | Joel Nielsen |
| Published by | Joel Nielsen |
| Release type | Game Soundtrack - Official Release |
| Format | 1 Digital - 21 tracks |
| Release date | December 03, 2019 |
| Duration | 00:54:19 |
| Genres |
| 1 | Transcendent | 01:34 | |
| 2 | Internal Conflict | 02:50 | |
| 3 | Entangled | 01:44 | |
| 4 | Convergence | 01:58 | |
| 5 | Alien | 03:02 | |
| 6 | The Hunting (D.E.) | 02:54 | |
| 7 | Lair | 03:51 | |
| 8 | Mind Games | 01:12 | |
| 9 | Shadows of Death (D.E.) | 02:34 | |
| 10 | Interloper | 02:25 | |
| 11 | Harbinger (D.E.) | 02:07 | |
| 12 | Critical Mass | 03:11 | |
| 13 | Ascension (D.E.) | 01:35 | |
| 14 | Respite (D.E.) | 02:13 | |
| 15 | Limitless Potential | 01:42 | |
| 16 | Border Worlds | 04:59 | |
| 17 | Catalyst | 02:31 | |
| 18 | Event Horizon | 01:25 | |
| 19 | Resonance | 02:06 | |
| 20 | Ascension Reprise | 03:14 | |
| 21 | Nihilist (D.E.) | 05:12 |
