

This mod uses Marioalexsan's ModAudio Mod to replace Atlyss' Soundtrack with tracks from DELTARUNE and UNDERTALE (mainly DELTARUNE though)!
All songs are directly pulled from both games' files, though songs related to day/night cycles were extended to at least 10 minutes at most. Since they aren't uniform in length, it may be a bit awkward. I may re-edit the looped day/night cycle tracks in the future.
Any picks that match up exactly with other mods that go with UNDERTALE/DELTARUNE songs are completely coincidental.
The full track list is below.
Credits to: Toby Fox for the tracks used, and for creating both UNDERTALE and DELTARUNE!
OmegaJaimX for the template (Seriously, this made things SO much easier to organize).
As stated before, this pack relies on and requires Marioalexsan's ModAudio Mod v4.1.1 or higher. I cannot guarantee it may work on other versions of the mod.
The mod targets ATLYSS - ver. 102025.a2, but it should hopefully still work with any future or older ones.
The mod will likely stop working should there be any updates, especially major ones.
Main Menu = THE HOLY
Character Select = Hip Shop
Character Creator = ANOTHER HIM
Sanctum Day = My Castle Town
Sanctum Night = The place where it rained
Outer Sanctum Day = ATRIUM
Outer Sanctum Night = 12am
Effold Terrace = Another Medium
Slime Diva = Death by Glamour
Arcwood Pass Day = Old wooden rafters
Arcwood Pass Night / Crescent Keep Night = Glowing Snow
Executioner's Tomb = Vs. Susie
Sanctum Catacombs = The Dark Truth
Sanctum Catacombs Battle = Ruder Buster
Sanctum Catacombs Boss = THE WORLD REVOLVING
Crescent Road Day = Scarlet Forest
Crescent Road Night = Waterfall
Luvora Garden Day = Field of Hopes and Dreams
Luvora Garden Night = Lost Girl
Crescent Keep Day = Second Sanctuary
Crescent Grove Field = Dark Sanctuary
Crescent Grove Battle = From Now On
Colosso = BURNING EYES
Valdur = GUARDIAN
Tuul Valley Day / Sanctum Arena = Gyaa Ha ha!
Tuul Enclave = SWORD
Bularr Fortress = Crumbling Tower
Galius = Black Knife
Gate of the Moon Day = Fireplace
Gate of the Moon Night = Mysterious Place
Wall of the Stars = Empty Town
Trial Of The Stars Day = Ever Higher
Trial Of The Stars Night = Metaphysical Challenge
Victory = Quiet Water
There were more plans in the way of song placements, but I'm not super experienced with all of this nor would I be able to fit it all how I wanted with said inexperience in mind.