The antivirus detected a virus (Trojan:Script/Wacatac.B!ml) in the .zip version.
Viewing post in Hold on a little longer comments
I've run the downloaded file through https://www.virustotal.com/gui/ and none of the security vendors found any problem. You can try it too, if you want to be sure. And I'm sure that there's no virus when I uploaded the file. Anyway, I'm gonna take down the download link, since the game can be played on browser anyway, and it doesn't save your progress.