Also just be aware, when I’ve tried in the past (was a few years ago so may not apply now) to compile games that have CSIDE converted images in there with the compile program provided by COG (which it sounds like you’re planning on) it would crash it and not work. Try it out well in advance to make sure it’ll cope with including scene images if you are going to try to you don’t get caught out the day before the deadline if it doesn’t work.
CSIDE’s compile option has no problems with compiling the images into a game.
If you still have problems maybe see if “softly” (on the forums, I haven’t looked at it in depth to see if it’ll work with this scenario) might be suitable. Otherwise you can build checkpoints in the game (say at the start of each chapter) where you have “save variables”. I haven’t done this myself but it should be relatively straight forward (although messy if you have tonnes of variables.) I think from memory the code is something like this:
*comment start of chapter 2 save all variables that might change in this chapter so they can be reset
*set chapter2health health
*comment set a variable so can allow players to access that save point such as the one below.
*set chapter2 "started"
Then if someone wants to return to the start of chapter 2. (ie have a choice from the stats screen or something where you trigger each chapter to be available with a variable.)
Restart game from...
*if (chapter2 = "started") #Chapter 2
*set health chapter2health
You can also have save points before death fail points instead if you want having a pre-save before the start of it and sending the player back to that point if you die rather than the start of a chapter.