q.u.q OST
AlbumTracklist 48:19
| 1 | Prelude | 0:55 | |
| 2 | Menu_theme_1 | 1:47 | |
| 3 | Menu_theme_2 | 1:58 | |
| 4 | Main theme | 0:52 | |
| 5 | Stranger theme | 0:53 | |
| 6 | Song of the forgotten cities | 1:44 | |
| 7 | Noclue Whatitwas | 1:56 | |
| 8 | Corridors | 1:04 | |
| 9 | Clock | 0:59 | |
| 10 | Nausea | 0:17 | |
| 11 | The Maze | 3:06 | |
| 12 | Maze Apostle intro | 0:26 | |
| 13 | Maze Apostle | 1:22 | |
| 14 | Choice | 1:07 | |
| 15 | Nostalgia | 1:44 | |
| 16 | Hacchi | 1:16 | |
| 17 | Quid pro quo | 0:55 | |
| 18 | Crisis | 0:49 | |
| 19 | Yamamoto | 2:00 | |
| 20 | Ningen ni naritai | 1:54 | |
| 21 | fantasia_1 | 2:06 | |
| 22 | quq main theme jazz ver | 2:30 | |
| 23 | Technoangels | 2:15 | |
| 24 | theme 4 | 2:15 | |
| 25 | corridors hq | 1:04 | |
| 26 | song of the forgotten cities HQ | 1:46 | |
| 27 | technoangels HQ | 2:15 | |
| 28 | theme 4 HQ | 2:15 | |
| 29 | Hacchi HQ (extended) | 3:12 | |
| 30 | Main theme rejected version | 1:26 |