DELTARUNE Chapter 1 OST is the official soundtrack for the first chapter of Deltarune. It was released on Bandcamp on November 1, 2018, on Spotify on November 20, 2018 and on iTunes on November 23, 2018. The OST was solely composed by the creator of the game, Toby Fox.
Official Track List
Note: Leitmotifs categorized as "minor" on the leitmotifs page are italicized. When applicable, the subset of a group of leitmotifs that a song is a part of is written after the parent group in parentheses.
|1||ANOTHER HIM||00:48||Plays while creating a vessel.||-|
|2||Beginning||00:57||Plays while driving to school.||Once Upon a Time, Don't Forget|
|3||School||01:20||Plays in Ms. Alphys's classroom.||Snowdin, Don't Forget|
|5||The Door||00:41||Plays when Kris and Susie find the very dark supply closet.||The Door|
|6||Cliffs||00:35||Plays in the ?????? location.||-|
|7||The Chase||00:33||Plays when Lancer attacks Kris and Susie in the ?????? and when Rudinn Rangers chase Kris when they are about to reach Card Castle.||-|
|8||The Legend||01:51||Plays while Ralsei explains the legend.||The Legend, The Legend (bassline)|
|9||Lancer||00:48||Lancer's overworld theme.||Lancer|
|10||Rude Buster||01:15||Plays during during non-boss fights.||Determination|
|11||Empty Town||01:23||Plays in Castle Town after hearing Ralsei's Legend.||The Legend, The Legend (bassline)|
|12||Weird Birds||00:16||Plays in the area just past the Great Door and when walking with Susie and Lancer to Card Castle.||-|
|13||Field of Hopes and Dreams||02:41||Plays in the Field.||Don't Forget|
|14||Fanfare (from Rose of Winter)||00:15||Plays whenever a character joins the party.||-|
|15||Lantern||01:08||Plays (slowed down) in Seam's shop.||The Legend (bassline), Determination|
|16||I'm Very Bad||00:13||Plays when Lancer intercepts the team halfway across the Great Board.||Lancer|
|17||Checker Dance||01:18||Plays during fights with a King Round.||-|
|18||Quiet Autumn||00:49||Plays in peaceful parts of the Forest.||-|
|19||Scarlet Forest||02:08||Plays in the Forest.||Don't Forget|
|20||Thrash Machine||00:54||Plays while constructing a Thrashing Machine for Lancer and Susie.||Lancer|
|21||Vs. Lancer||00:42||Plays while fighting Lancer.||Lancer|
|22||Basement||00:27||Plays in the Prison in Card Castle.||Card Castle|
|23||Imminent Death||00:20||Plays during Susie's scene before fighting against Lancer.||Your Best Nightmare|
|24||Vs. Susie||01:21||Plays during Susie's fight against Lancer in Card Castle's dungeon.||Your Best Nightmare|
|25||Card Castle||01:01||Plays in Card Castle.||Lancer, Card Castle|
|26||Rouxls Kaard||00:19||Plays while encountering Rouxls Kaard.||-|
|27||April 2012||00:20||Plays in the Club room in Card Castle.||-|
|28||Hip Shop||00:39||Plays in Rouxls Kaard's shop.||-|
|29||Gallery||00:12||Plays when King is threatening to kill Lancer and the party both before and after his battle.||-|
|30||Chaos King||01:46||Plays while fighting King.||The Legend, Card Castle, Lancer|
|31||Darkness Falls||01:06||Plays if choosing not to persist after a game over.||-|
|32||The Circus||00:51||Plays on floor ?????? where Jevil is located.||The Legend (bassline)|
|33||THE WORLD REVOLVING||01:41||Plays while fighting Jevil.||The Door, THE WORLD REVOLVING, Don't Forget|
|34||Friendship||02:40||Plays when Kris decides to say goodbye to the Darkners before going back home, once the party has defeated King without lowering any enemy's HP to 0.||Don't Forget|
|35||THE HOLY||00:48||Plays while standing in front of the Dark Fountain.||-|
|36||Your Power||00:13||Plays when Kris releases their SOUL to close the Dark Fountain and escape the Dark World.||Don't Forget|
|37||A Town Called Hometown||01:53||Plays in Hometown.||The Legend (bassline), Snowdin, Don't Forget|
|38||You Can Always Come Home||01:40||Plays in Kris and Toriel's home after coming home from school.||Once Upon a Time, Don't Forget|
|39||Laura Shigihara - Don't Forget||00:51||Plays during the ending credits.||Don't Forget|
|40||Before the Story||01:28||Plays on the menu screen after beating the chapter at least once.||Once Upon a Time|
- In the background of "ANOTHER HIM", static noises that were used in Giygas's theme from EarthBound can be heard.
- Before the Story originally debuted as the Undertale PS4 Dynamic Theme. It also appeared in the Undertale Collector's Edition Exclusive Soundtrack.
- "The Legend" is the only song that changes time signatures during the song, from 4/4 to 6/8 near the end.
- "Don't Forget" is the music sung by Laura Shigihara, who also composed the soundtrack for Plants vs. Zombies.
- "April 2012" was originally made for a Homestuck-related project, pitched down and named
demoscene.oga, along with
muscles.ogawhich reappeared as sans. in the Undertale Soundtrack.
- A version of "THE HOLY" was posted in the music section of Toby's website on 12 July 2015 as
- The DELTARUNE Chapter 1 OST is now available on Bandcamp. - @UnderTale on Twitter, November 01, 2018.
- DELTARUNE Chapter 1 OST is now available on Spotify. (Other platforms are on the way.) - @UnderTale on Twitter, November 20, 2018.
- DELTARUNE Chapter 1's OST is now available on iTunes. - @UnderTale on Twitter, November 24, 2018.
- Undertale - PS4 Dynamic Theme Preview - YouTube
- Undertale Collector Edition Exclusive Soundtrack By Toby Fox - YouTube