Will o' Wisp Original Soundtrack
| Composed by | Kenji Kaneko |
| Published by | Team Entertainment |
| Catalog number | KDDL-00042 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 Digital - 15 tracks |
| Release date | December 19, 2018 |
| Duration | 00:19:24 |
| Genres |
| 1 | ウィル・オ・ウィスプテーマ | 01:31 | |
| 2 | いつも快晴 | 01:15 | |
| 3 | 想いは彼方へ | 01:17 | |
| 4 | 夕暮れの風 | 01:22 | |
| 5 | 約束の言葉 | 01:27 | |
| 6 | ロンドン | 00:57 | |
| 7 | 棺 | 01:09 | |
| 8 | 迫りくる危機 | 00:59 | |
| 9 | 闇よ落ちるなかれ | 01:11 | |
| 10 | 宿命の交わる瞬間 | 01:16 | |
| 11 | 強き絶望,蘇る悪夢 | 01:09 | |
| 12 | 囚われし記憶 | 01:37 | |
| 13 | 失われし真実 | 01:16 | |
| 14 | 決断の刻 | 01:17 | |
| 15 | エンディングテーマ | 01:41 |
