Back up pcgame game on usb stick?

Probably the question is very stupid for people who are more familiar with something like that but I play an older game on the laptop (Rollercoaster Tycoon 3, with disc)

The last time I ran a cleaning program and then found that my park was gone in the game I had been working on for a long time.

Since it's not online / connected to an account, I can't do anything more.

Is it possible to save games from the game with a USB stick so that I can save the current game from time to time? And if not, there are other alternatives, even if you switch to a different PC / laptop, for example, so that you can play the same score and don't have to start over?

Ps: Please be nice to me, I'm 21 and get on well with technology, but I'm not into the matter when it comes to that.

Yes, you can simply copy saved games to a stick. All you have to do is find out where the game puts them and put them back there when you reinstall.

In this case it is apparently under:

Documents \ RCT3

Yes, that works as long as games are not saved in an iCloud. You can find mine under the folder "my Games" next to desktop, my pictures, etc. There you look for a folder with the pupblisher or game name and copy it to the USB stick

Thank you!

Thank you!