MO:Astray Original Soundtrack
| Composed by | SIHanatsuka |
| Published by | Rayark International Limited |
| Release type | Game Soundtrack - Promo / Enclosure |
| Format | 1 Digital - 31 tracks |
| Release date | October 24, 2019 |
| Duration | 01:24:20 |
| Genres |
| 1 | MO | 01:44 | |
| 2 | Inside world | 02:06 | |
| 3 | Birth | 04:15 | |
| 4 | Birth B | 02:50 | |
| 5 | Escape | 00:15 | |
| 6 | The Errors | 01:56 | |
| 7 | Surface | 03:42 | |
| 8 | Surface B | 03:41 | |
| 9 | Unknown Area | 01:27 | |
| 10 | Fatal Trap | 02:06 | |
| 11 | Fallen | 01:29 | |
| 12 | Monsters | 01:53 | |
| 13 | Monsters B | 01:53 | |
| 14 | The Frescoe | 01:36 | |
| 15 | Nightmare | 02:33 | |
| 16 | King of Inhabitants | 02:51 | |
| 17 | Doula | 03:13 | |
| 18 | System | 03:42 | |
| 19 | System B | 03:42 | |
| 20 | Burning out | 01:09 | |
| 21 | Uncontrolled | 04:04 | |
| 22 | Breakthrough | 03:02 | |
| 23 | Dylan | 04:30 | |
| 24 | Purpose | 02:15 | |
| 25 | Termination Weapon | 03:10 | |
| 26 | Into the sky | 02:16 | |
| 27 | Extremergy Life Form | 05:13 | |
| 28 | Epilogue | 03:55 | |
| 29 | Epilogue - Inst ver | 03:54 | |
| 30 | Epilogue - Trailer ver | 02:07 | |
| 31 | Elara | 01:51 |
