The playlist has all of the ULC's original soundtracks, old versions of said tracks, and some fan-made tracks that I think would end up in the game or would fit.

Playlist Picture is taken from an ULC Illustrative Image in Roblox, I thought it would be cool.

Play ULC... NOW! (https://www.roblox.com/games/10982620122/Undertale-Last-Corridor)

Official ULC Account! (Official Tracks) (https://soundcloud.com/utlc)
Official ULC:Extras Account! (Official Skin Tracks) (https://soundcloud.com/utlc-extras)
Unofficial ULC Accounts! (Unofficial Tracks) (https://soundcloud.com/user-831581958) (https://soundcloud.com/ulctheust)
ULC Archive! (Old versions of Tracks) (https://soundcloud.com/ulcarchive)

Tracks In Order:
Trailers
TLCA
Lobby (Lobby - Casino)
Chara Team
Sans Team (+Skins)
Events (Sans Team) (Christmas - Halloween)
Not Specificied

Undertale: Last Corridor (Semi-)OST

The full Undertale Last Corridor - Remastered OST! Only contains songs made by the musicians of ULC, or made for ULC and were accepted. Enjoy songs that are both in game, and not yet introduced to the game! (Playlist is purely for listening purposes only, all songs belong to their respective owners.)

Undertale Last Corridor - Full OST

ULC full ost (updated often)

Credit To flow for making this track.

Flows Account: https://on.soundcloud.com/oQK1R go credit him.

Undertale Last Corridor: Lobby Theme 1/4

A REUPLOAD of Undertale Last Corridor's Lobby Theme (2 of 4)
Official Track: https://www.youtube.com/watch?v=EibFOAObJhI
SkieHiePie's Soundcloud: https://soundcloud.com/skiehie
SkieHiePie's Youtube: https://www.youtube.com/channel/UCBF8ijuLloWXjf4r1k3a6Bw

UNDERTALE: Last Corridor Lobby (2/4) [SkieHiePie] [REUPLOAD]

A REUPLOAD of Undertale Last Corridor's Lobby Theme (3 of 4)
Official Track: https://www.youtube.com/watch?v=VVeS37xQjzc
SkieHiePie's Soundcloud: https://soundcloud.com/skiehie
SkieHiePie's Youtube: https://www.youtube.com/channel/UCBF8ijuLloWXjf4r1k3a6Bw

UNDERTALE: Last Corridor Lobby (3/4) [SkieHiePie] [REUPLOAD]

A REUPLOAD of Undertale Last Corridor's Lobby Theme (4 of 4)
Official Track: https://www.youtube.com/watch?v=6PRl0bP5raA
flow's Soundcloud: https://soundcloud.com/floworsmth

UNDERTALE: Last Corridor Lobby (4/4) [flow] [REUPLOAD]

* how original.
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About: This track was composed for a youtube video on the Undertale: Last Corridor channel.
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THUMBNAIL RENDER: by Ian
SONG: by KnuckleDuster
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[DO NOT USE WITHOUT PERMISSION]

Contract Negotiation + Big Reveal

what a nice trailer! i’m sure there is a completely professional tone maintained throughout
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About: This track was composed for the SINS OF THE PAST Update Trailer.
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THUMBNAIL: by Coolbic
SONG: by Box Standard
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[DO NOT USE WITHOUT PERMISSION]

SINS OF THE PAST TRAILER

* what a wonderful tune. especially when i’m counting coins.
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About: This track was composed to be the FIFTH LOBBY THEME, but it will also be featured as a background music choice in the Build Your Own Sans editor.
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SONG: by Epicified
THUMBNAIL ART: by Joe22 (Placeholder. Probably.)
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[DO NOT USE WITHOUT PERMISSION]

[THE CASINO] Lobby Track 5

An upload of The Clock.
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Not a continuation of the ARG.

The Clock. [The Approachers.]

An upload of TLCA.
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Not a continuation of the ARG.

TLCA [The Approachers.]

* I CAN STILL HEAR HIM, HUMAN.
* AND THERE’S NO DOUBT IN MY MIND..
* ..THAT WE BOTH WANT YOU TO PAY.
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About: This track was composed for Dustbelief Papyrus’ eventual rework.
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SONG: by KnuckleDuster
ART: by Coolbic
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[DO NOT USE WITHOUT PERMISSION]

[DUSTBELIEF Papyrus] SOULBOUND

* don’t worry, papyrus.
* i’ll make things right..
* even if it costs me my life.
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About: This track was composed for Distrust Sans’ first phase.
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SONG: by Epicified with help from Flow
ART: by Brilage
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[DO NOT USE WITHOUT PERMISSION]

[DISTRUST Sans - 1/2] MOURNFUL DESOLATION

* i DARE you to strike me down. come on, give it your best shot.
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About: This track was composed for Green Sans’ first phase.

THIS TRACK IS NOT REPRESENTATIVE OF HOW GREEN SANS WILL APPEAR IN HIS OFFICIAL GAME PROJECT—IT IS A SONG SOLELY FOR HIS APPEARANCE IN UNDERTALE: LAST CORRIDOR.
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SONG: by Fazzy
ART: by Graysans (Green Sans Team Member)
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[DO NOT USE WITHOUT PERMISSION]

[GREEN SANS - 1/2] ANOTHER DAY, ANOTHER DOLLAR

* surely by now, you understand the gravity of the situation..?
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About: This track was composed for Outertale Sans, and will be used for his reworked iteration in-game.
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THUMBNAIL: by Coolbic
SONG: by Box Standard
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[DO NOT USE WITHOUT PERMISSION]

[OUTERTALE Sans] STARSLAMMER

* i can’t give up now.
* not when everything is at stake.
* you won’t be taking me down that easily.
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About: This track was composed for Distrust Sans’ second phase.
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SONG: by Epicified
ART: by Brilage
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[DO NOT USE WITHOUT PERMISSION]

[DISTRUST Sans - 2/2] HEARTBREAK FEVER

going to either
1. archive this account and do my own thing on a new one
2. move the older songs to a new account and make it an archive

running out of uploads

This is a scrapped song I made while Epic was still hired, we were going to collab on it
Unfortunately I had to scrap it cuz of the drama regarding Epic + He got fired...
Will I remake this song from the ground up again? Maybe maybe not

This song was still heavily unfinished so that can explain why it just doesn't have any percussion at all

ULC - SHADOWS DIE TWICE (Scrapped)

THIS WAS MADE WITH PERMISSION! THIS IS MANAGED BY RATA

This is simply an archival to preserve the old, unused, scrapped, and the first ever versions of tracks in Undertale: Last Corridor.
If any of the musicians want any song removed from this archive, please ask me to do so in the comments or by contacting me.

As always, do not use these songs without permission from either the song owner or Joey.

ULC - SHADOWS DIE TWICE (Scrapped)

ULC: Banks