If you are really serious about creating a game, I'd advise to gather a budget and hire people to help you create what you want. Hobby/Rev-share projects never turn out well in 99.9% of cases.
In case you have spare budget for audio, feel free to get in touch with me, I can help you out with music and sound design.
Here's my portfolio: https://www.youtube.com/@ApocalypticUniverse
You can contact me via Discord: world_creator#9524