Custom music in Cyber Grind playlist is an upcoming feature of ULTRAKILL, so you can use this mod until custom tracks are officially supported.
This mod does not affect the folder with original soundtrack, so you can combine it with your custom tracks.
Or you can just use r2modman for that. Both methods are described in the video below (click to open):
All the settings for the mod are available by pressing CGME Menu hotkey (F4 by default). The menu contains the following options:
Allows you to switch between the tracks mid-game. Available by pressing Tab by default.
If the whole menu is an overkill for you, just switch between tracks using Next track hotkey.
You can also add multi-segmented looped tracks with an intro and loop parts. In order to make such a track, place your intro and loop files in the same folder and add _intro and _loop postfixes into their file names respectively. Please note that these parts must have the same extension!
Like this.
If everything's been done correctly, it now should be displayed as a single track.
Create a folder called CGME inside your ULTRAKILL/Cybergrind/Music directory (or use the one created by the mod), and you'll be able to replace some of the sound effects in Cybergrind. This folder is ignored by Music terminal. Please note that these files must have an .mp3 extension.
Here's the list of file names and the references to the sound effects these files are intended to replace:
If a regular Cyber Grind experience is too boring for you, you can turn it into a bloody karaoke (he-he, "bloody"). Place subtitles file named exactly as your track in the same folder where this track is located. Currently, only .srt and .vtt files are supported. The hierarchy and naming should be something like this:
ULTRAKILL/
├─ Cybergrind/
├─ Music/
│ ├─ Darude/
│ │ ├─ Darude - Sandstorm.mp3
│ │ ├─ Darude - Sandstorm.srt
Please note that if your track has into and loop segments, there must be two separate subtitles files
ULTRAKILL/
├─ Cybergrind/
│ ├─ Music/
│ │ ├─ Darude/
│ │ │ ├─ Darude - Sandstorm_loop.mp3
│ │ │ ├─ Darude - Sandstorm_loop.srt
│ │ │ ├─ Darude - Sandstorm_intro.mp3
│ │ │ ├─ Darude - Sandstorm_intro.srt
Created by Flazhik