Oh, ok, didn't expect that. Though I can see why that may be, .NET Core (which the game is running in) attaches most (if not all) of needed libraries with the release executable, the antivirus may not be sure if they are perfectly safe (even though they're straight from Microsoft).
Still, I wouldn't trust some random stranger on the internet with running arbitrary code on my Windows machine just because it's a game jam, so neither should you ;) Still, thanks for being interested!