don't use shitty antiviruses and check EXE files through virustotal.com, if it detects 3 or more antiviruses on this site = it's definitely a virus, less than 3 = here you already need to consider what and where you downloaded it from. and generally your pathetic Nord reacted because the game is just EXE files, and all games that run via EXE make some changes in the system, that's why it reacted (I am surprised someone still using antiviruses, ESPECIALLY paying for 'em)