Is it possible to add a way to enable advanced game modes on games already going and disable them?

So yes, you can actually enable this on saves that you already have.

You do this when you load save files.

So when you load a save file, there's a little check mark underneath the load button that you can click to enable and then...

When you load the save file, you'll have advanced game modes settings be enabled on that save file.

And then when you save that save file, it will be enabled.

But you can't go back.

And the reason why we decided not to set this up is because we want you to still experience the game in the way that we've designed it, but we still want players to have the option to enable being able to build without cost and be able to fly and all that stuff.

But if it felt like...

If it was just like in a menu where you just like give yourself items if you felt like it without any repercussions really then we felt like it sort of ruins sort of the game design balance that we have and it might make it so that people sort of take the easy way out in a lot of cases instead of like playing the game we designed it for.

There's a saying in game design where if you can optimize away the fun out of a game then players will always do that.

So we needed to add a little bit of friction so that people wouldn't just like enable these things

all the time and just get the shit out of it.

And I think this is a fair solution to that problem.

So if you want to be able to do that stuff, you can, totally.

But your save file will be marked as a creative save file, essentially.