All Deltarune tracks, from all chapters.
Missing: Spoiler-Free Trailer

Deltarune Full OST

Undertale + Deltarune

unused ut/dr gold

Literally every single official music track I could find that is remotely connected to Undertale/Deltarune.

ALL UNDERUNE

I actually really like this arrangement. The only reason I didn't use it was that I was worried about overusing the main theme too much. Instead I decided to make a song based off of the town theme and use it for the school.

... What do you think?

- Toby Fox

Unused music for Deltarune, played at the beginning of the Undertale sixth anniversary livestream.

School (Alternate)

Originally played in the Great Board area.
However, the area isn't very long, so I felt like if I played a song here, it would actually have the opposite effect of making the area feel disappointing if it had its own unique music but didn't amount to much.

When I have a song, I feel like I need to do the song justice by having a certain amount of content that goes along with it...

- Toby Fox

Unused music for Deltarune, played at the beginning of the Undertale sixth anniversary livestream.

Checkerboard

I started to come up with an epic song for when you first battled Rouxls.
After starting the song though, I realized... He's not very epic at all.
Feels like if he had a song like this, you'd actually be able to beat him in one hit.
So, I didn't do anything with this one.

- Toby Fox

Unused music for Deltarune, played at the beginning of the Undertale sixth anniversary livestream.

Epic Rouxls Battle

I only had the idea for the intro of the song, but it didn't feel like it fit too well.
So I only made forty seconds of it.

- Toby Fox

Unused music for Deltarune, played at the beginning of the Undertale sixth anniversary livestream.

King Boss (Orchestral)

I made like three different versions of the song.
This version was pretty good too, but the intro had the wrong atmosphere.

- Toby Fox

Unused music for Deltarune, played at the beginning of the Undertale sixth anniversary livestream.

Legend (Alternate)

I actually really like this song and wanted to use it to introduce a leitmotif, but I ended up using a more evocative song with a different motif. I'll try to make an excuse to use the song in the game somewhere.

- Toby Fox

Unused music for Deltarune, played at the beginning of the Undertale sixth anniversary livestream.

Fountain (Unused)

The arrangement is really early, but I created this thinking of an animated intro for the game, similar to Wild Arms. I still see it in my head when I listen to the song.

The best part would have been at the end when everyone is running up the staircase as the silhouettes of the bosses from all the chapters show up, and the Knight, standing in a white door at the top of the stairs, turns around and looks down at them...

- Toby Fox

Unused music for Deltarune, played at the beginning of the Undertale sixth anniversary livestream.

Game Main Theme (Piano Sketch)

Toby Fox - UNDERTALE Soundtrack - 05 Ruins

Toby Fox - UNDERTALE Soundtrack - 04 Fallen Down

Toby Fox - UNDERTALE Soundtrack - 03 Your Best Friend

Toby Fox - UNDERTALE Soundtrack - 02 Start Menu

Toby Fox - UNDERTALE Soundtrack - 01 Once Upon A Time

Undertale OST - Waterfall (GENOCIDE)

Undertale OST - Snowdin Town (GENOCIDE) Extended

Undertale OST - Bonetrousle (GENOCIDE) Extended

Undertale - In My Way (Anticipation Slow Ver.)

Undertale OST - CHARA

ANOTHER HIM | DELTARUNE 001

Beginning | DELTARUNE 002

School | DELTARUNE 003

DELTARUNE | Susie 004

UNDERTALE Soundtrack

005 - Ruins

004 - Fallen Down

003 - Your Best Friend

002 - Start Menu

001 - Once Upon A Time

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Epic Rouxls Battle

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