Disc 1: Main soundtrack
Disc 2: Bonus tracks
Disc 3: 4th anniversary update tracks
Album was composed by Peter Lowey and was released on August 26, 2016. Soundtrack consists of 33 tracks tracks with duration over . Album was released by Gosatsu Visual Novels, Steam.
CD 1
| 1 | Oppressive Darkness ~Title~ | | |
| 2 | Tranquility of the Conscience | | |
| 3 | Carefree Days Drifting by | | |
| 4 | Lazy Get-Together | | |
| 5 | And Yet, Rays of Hope Shine Down on Us | | |
| 6 | Blissful Serenity | | |
| 7 | Youthful Spirits Brimming With Energy | | |
| 8 | Welcome to My Halloween | | |
| 9 | Listen to My Logic | | |
| 10 | Eerie Silence | | |
| 11 | Nooks and Crannies, Beware! | | |
| 12 | Oppressive Darkness ~Creeping~ | | |
| 13 | Gruesome Discovery | | |
| 14 | Devastation | | |
| 15 | Rushing Towards Disaster | | |
| 16 | A Blanket of Sadness | | |
| 17 | A Pillow of Regret | | |
| 18 | Unsettling Suspicions | | |
| 19 | Sorrowful Investigation | | |
| 20 | Hidden Fragments of Truth | | |
| 21 | Conviction ~Rush~ | | |
| 22 | A Blanket of Sadness ~Confession~ | | |
| 23 | Life Goes on | | |
CD 2
| 1 | Tranquility of the Conscience ~Miko~ | | |
| 2 | Oppressive Darkness ~Threatening~ | | |
| 3 | Listen to My Logic ~Again~ | | |
| 4 | Conviction ~Full~ | | |
| 5 | Torment of the Living ~Unused Track~ | | |
| 6 | Carefree Gamer ~Rihatsu's Ringtone~ | | |
CD 3
| 1 | Welcome to my Halloween ~Preparations~ | | |
| 2 | Awkward Silence | | |
| 3 | The Leisurely Passage of Time | | |
| 4 | Calm Deliberations | | |
