I already posted if there is any game saving but instead of game saving in Ready is there on Unity?
There is multiple ways of saving in Unity. Some ways are difficult and some are very easy to implement, but it all depends on the complexity of your games. My first horror game was very simple and used “PlayerPrefs” to know which endings you have found, however the game I’m working on now in Unity will have to use something called “binaries” because it is just so much more complex.
Here is a thread about unity saving:
Scroll down a bit and you’ll see me discuss with another user on here that is more in-depth about game saving in unity. I hope it helps!