Should I make my tycoon save player progress?

Like a sandbox tycoon? Currently it’s linear.

I think so. It can be a good idea though.

maybe. would imo screw up the dynamic of the game, but maybe…

Making a save function that saves every few minutes would make your game so much better. I remember when I used to play tycoon games, how frustrating it was when I had to go eat or whatever and just lost like an hours worth of time.