How do people design the save game feature in large/complex games?

Question

The save game feature seems simple but it’s mind-blowing how it can return the exact state of a game with all elements/events organised in the correct order. Can anyone explain how it works?

In: 668

Answer 1

I think it’s more fascinating how old NES ( and probably other) console games with no actual capacity to save state could give you a 6 digit save code to bring you back to the exact same place you left.