How do I make my game save files to the Roaming folder?

I'm kind of an experienced C2 user and decided to make a survival game, that would save your progress in it's Roaming folder (just like Minecraft).

The only problem is, I can't get it to work and I don't know why. My only guess is that my main drive is almost full (2GB free), but the files I'm testing are just text files.

If I try the folder dialog method, it works, however.

It's such a shame, that it won't work. Because making it so you have to pick the folder seems sketchy.

Any ideas or are there any walk-arounds?

Lastly, is there a way to compress folders into ".*" files using the file system?

So you are writing the file with NWjs plugin? Can you show a screenshot of the code?

And you really need to free up some space, 2GB is not sustainable.

Sorry, I already figured it out. All I had to do is check if the path exists. If it doesn't, it creates the path, so I don't really have to show you.

But I will anyway:

If you think it's not efficient, tell me another way to do that

Btw, I used CCleaner and now there is 3GB storage free