Available as a DLC for owners of the game on Steam.
Над альбомом работал композитор Angel Polanco, а его релиз состоялся 1 марта 2018 года. На саундтрек попало 38 композиций общей длительностью более часа. Подборка является компиляцией оригинальной музыки. Выпуском пластинки занимался лейбл The Hidden Levels, Valve.
CD 1
| 1 | Blank Melody | 01:59 | |
| 2 | Subterranean Pulse | 01:40 | |
| 3 | Shambled Paradox | 02:30 | |
| 4 | Her Adamant Will | 02:19 | |
| 5 | Mutual Exclusion | 02:05 | |
| 6 | Defense Mechanism | 02:12 | |
| 7 | My Heart Is See Through | 02:41 | |
| 8 | The Void Rains Down Upon You | 02:26 | |
| 9 | Distant Observer | 01:26 | |
| 10 | Warning Signs | 00:49 | |
| 11 | Nihility | 00:52 | |
| 12 | Trypophobia | 02:31 | |
| 13 | Guardian Angel | 02:45 | |
| 14 | Theoretically Beautiful | 02:32 | |
| 15 | Towering Anxiety | 02:35 | |
| 16 | Stained Glass Battle Dance | 02:56 | |
| 17 | Alone in the Dark | 02:10 | |
| 18 | Willpower | 01:14 | |
| 19 | A Strange Place | 01:56 | |
| 20 | Fever Dream | 02:34 | |
| 21 | Monster Birthday | 02:08 | |
| 22 | Uneasy Feeling | 01:30 | |
| 23 | Impending Doom | 02:33 | |
| 24 | Lonely Respite | 01:22 | |
| 25 | Long Distance | 01:34 | |
| 26 | Lucid Dissonance | 03:07 | |
| 27 | Anxious Protocol | 02:04 | |
| 28 | Transdimensional Sibling | 01:22 | |
| 29 | Happy Place | 01:58 | |
| 30 | Arrhythmia | 01:58 | |
| 31 | Little Imperfection | 01:56 | |
| 32 | Absolute Zero | 03:04 | |
| 33 | Less Than Zero | 01:28 | |
| 34 | Negative Matter | 02:08 | |
| 35 | An End | 00:51 | |
| 36 | Me, Myself, and Eye | 02:46 | |
| 37 | Random Encounter | 00:12 | |
| 38 | New Chapter | 00:12 | |
