Yoo You should add Inflation
I DEEPLY disagree with this idea I know a porno game with literally inflation. price get doubled so fast so you barley could afford living but I agree that it would be fun cuz when I got enough max energy and skills (int-dex-chr) I could buy almost everything and it was so good at first but at the end I felt so bored
still such a useless mechanism if you want to make game harder there are better ways