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Nope, I've always unpacked it first, never tried to ran it directly from archive, also never had two unpacked ones as that seems to break one of them, no matter if they're placed in different folders.

Yes, I've just tested it and it worked perfectly fine from the desktop, thanks for help!

Now that you mentioned it, maybe the problem really is that I put it into too many other folders. I'll try extracting it into a single folder on the desktop and see what happens. 

Between the game working and then no longer working there may have happened several windows updates, maybe an entire system reinstalling, though I doubt the game has been updated since then.

And, uh, I don't entirely understand your last question, do you mean a folder named "windows" or what?

The layout is looking exactly like this, and I am trying to run it on Windows 10, Home edition. I can't tell what was the game and system version when I successfully ran it before, but I can assure that it was Win 10 as well. 

P.S. - I've tried running each version of exe from two downloads, none of them worked and gave out the same error. (Only one was unzipped at a time)

uh, sorry for bothering, but i am getting the "Failed to load mono" error whenever i try to run CandleGhostSpine.2.exe
is it not the right exe i am trying to run, or am i doing something else wrong? previously game worked fine on the same (i think) system, and probably the same game version