Windows 10 seems concerned about it, it acts as if it's suspected malware at first znd asks at every turn if I want to download it and then if I want to run it anyway despite the warnings it could be dangerous.
It be like that sometimes. I DL'd and played it and it seems fine to me!
This seems to be a problem with many older gamemaker games, I can assure you it's not malicious in any way though.