Certain game engines and certain ways of creating games are prone to be detected as a virus.
Anything "clever", anything that obfuscates, runtime compressions, and any kind of internal emulations might look suspicious to a heuristic.
Godot exe runtime packing is rather bad at some versions. But just about any game engine has this in some versions. I do not know how bad the situation for python is.
No, it is not normal. But it happens, and it even happens for well known engines.
And one should never disable virus scanners, especially not because the source where you downloaded something tells you so. So, yeah, it will freak out a lot of users, and rightly so. If the game is so badly coded and compiled that even the operating system scanner triggers, that is not a good sign.
Plus, there is a lot of actual malware uploaded to Itch. So people better be careful.
