Album was composed by Toby Fox and was released on September 15, 2016. Soundtrack consists of 97 tracks tracks with duration over more than 6 hours. Album was released by Materia Collective.
CD 1
| 1 | Home | 03:44 | |
| 2 | Detritus (Ruins) | 03:33 | |
| 3 | Ghosts n' Dummies | 03:10 | |
| 4 | The Skeleton that is Sans | 04:06 | |
| 5 | Waterfall | 02:11 | |
| 6 | Inner Monologue of a Bird Waiting on the Edge | 03:49 | |
| 7 | Double Chill | 02:21 | |
| 8 | Another Medium / CORE | 08:33 | |
| 9 | Uwa!! So Mettaton! | 06:26 | |
| 10 | dogsong musak | 02:01 | |
| 11 | Undertale Variations | 06:01 | |
| 12 | The Last Soul | 04:07 | |
| 13 | Remember Me: Undertale √Pacifist Ending Theme | 04:59 | |
| 14 | Enemy Untold | 04:00 | |
| 15 | Heartburn | 05:49 | |
| 16 | Mysterious Place | 02:45 | |
| 17 | Bonestep | 05:43 | |
| 18 | Waterfall | 02:21 | |
| 19 | Garbage Dump Stomp | 05:15 | |
| 20 | Spear of Justice | 02:00 | |
| 21 | Here We Are | 03:14 | |
| 22 | Wrong Enemy? | 02:36 | |
| 23 | Death by Glamour | 03:37 | |
| 24 | ASGORE (Symphonic Metal) | 03:33 | |
| 25 | Your Best Nightmare | 05:19 | |
| 26 | Once Upon A Time | 01:55 | |
| 27 | Dummy! | 02:47 | |
| 28 | Brazilian Home | 03:13 | |
| 29 | Snowy | 03:28 | |
| 30 | Russian Bonetrousle | 03:01 | |
| 31 | Quiet Winds | 03:47 | |
| 32 | Memories | 02:15 | |
| 33 | NGAHHH!! | 01:55 | |
| 34 | Alphys | 03:01 | |
| 35 | Metal Crusher | 01:34 | |
| 36 | Oh! One True Love! | 02:21 | |
| 37 | Undertale | 05:13 | |
| 38 | Once Upon a Gory Snow | 03:39 | |
| 39 | A Dreemurr's Return | 03:46 | |
| 40 | Uwa! Mega Temperate | 03:38 | |
| 41 | Stronger Glamour | 04:50 | |
| 42 | Mo Chara Fearr (My Best Friend) | 04:28 | |
| 43 | Dating Medley! | 04:17 | |
| 44 | Quiet Water | 04:58 | |
| 45 | Run! Dance! Fall! | 02:33 | |
| 46 | Vaporblook (Spookwave) | 02:18 | |
| 47 | Tem Shop Bluz | 05:06 | |
| 48 | Spear of Justice | 03:29 | |
| 49 | Long Way to New Home | 05:12 | |
| 50 | Metal Crusher | 01:21 | |
| 51 | You're Going to Be Free | 05:39 | |
| 52 | Megalovania | 05:32 | |
| 53 | High Hopes and Dreams (Sexy Remix) | 04:06 | |
| 54 | Dogsong (Annoying Mix) | 01:28 | |
| 55 | La Historia de Abajo | 01:33 | |
| 56 | Swung Down | 03:20 | |
| 57 | Home | 05:07 | |
| 58 | Snowdin Town | 03:39 | |
| 59 | Xylobones | 02:34 | |
| 60 | Memory | 02:39 | |
| 61 | SpookWAVE | 01:55 | |
| 62 | Temcappella | 02:50 | |
| 63 | Spear of Justice | 03:54 | |
| 64 | Hotel (Café Version) | 01:40 | |
| 65 | Sakura Blossom Confession (Moe Moe Remix) | 02:00 | |
| 66 | Spider Dance | 02:57 | |
| 67 | Death By Glamour | 04:57 | |
| 68 | Asgore's New Groove | 04:25 | |
| 69 | Reunited | 03:58 | |
| 70 | Child of the Light (Asgore's Heartache) [feat. Darby Cupit & Lauren Liebowitz] | 07:16 | |
| 71 | Song That Might Play When You Fight Sans | 01:06 | |
| 72 | Cave of Monsters | 02:48 | |
| 73 | Undyne | 03:17 | |
| 74 | Waterfall | 02:08 | |
| 75 | Rise of the Bird That Carries You Over A Disproportionately Small Gap | 01:32 | |
| 76 | MTT Presents - The Rise and Fall of Viktor von Tron der Schnell | 03:22 | |
| 77 | Dance with a True Hero | 04:58 | |
| 78 | Another Medium | 03:28 | |
| 79 | Death Report! | 03:43 | |
| 80 | Bake Sale or Bust! A Cautionary Tale | 02:07 | |
| 81 | It's Raining Somewhere Else | 03:38 | |
| 82 | Undertale | 04:57 | |
| 83 | Asgore | 03:08 | |
| 84 | Amalgam (feat. Doug Perry) | 03:23 | |
| 85 | MEGALOVANIA (Violin Metal) | 03:08 | |
| 86 | True Determination | 05:30 | |
| 87 | Lullaby for the Fallen Child | 05:20 | |
| 88 | Papyrus's Tarantella (Nyeh Heh Heh) | 01:28 | |
| 89 | Premonition of a Flower | 05:22 | |
| 90 | Rising Waters | 03:31 | |
| 91 | [REDACTED] | 11:04 | |
| 92 | Chill | 06:07 | |
| 93 | Rundyne | 04:58 | |
| 94 | Hotland Express (Live at MAGFest) | 06:14 | |
| 95 | Undertale (A Cappella) | 05:51 | |
| 96 | ASGORE | 03:44 | |
| 97 | For Good! | 04:50 | |
