i actually have no idea.
in all honesty, coming from me who's actually developed the entire game using a valid copy of clickteam fusion (the game's engine), i think this could very possibly be a false positive.
clickteam games tend to do this kinda thing in particular, and it is a constant quote on quote "red flag", which most of the time, is a false positive as you said.
i have no idea of this happening, specially considering the game doesn't really ask for your password at all in any point.
i think this may possibly be a false positive, considering this is very common in clickteam games. if there IS something involved, this has nothing to do with me, the lead developer, but instead has to do with clickteam, which is the game's engine used.
but i'm not so sure this time around. i am honestly pretty sure, and this is in all honesty, it is MOST likely a false positive. this also happened with the previous game released which, also, used clickteam.