Here is my very first attempt at a mod for any game.
The mod adds the OST from a no longer available mobile game called Evil Factory.

Evil Factory OST by Jukio Kallio: https://www.youtube.com/watch?v=O3V43y09UZs&list=OLAK5uy_k2zSJ7ImrhuWcfm6P8XT0REN3q5lP0GJY

I didn't use every track but I still recommend listening to all of them and maybe even getting the game through an apk download that you can easily find with a simple google search. (Only on mobile devices of course)
The mod volume might be too low depending on one's personal preferrence and I apologize, however, if you do know how feel free to adjust the mod volume yourself in the mod folder.