If it helps, I downloaded the file and scanned it with my AV and nothing popped up. Which AV are you using? Some will flag various files like renpy, torrents, and other random files as virus classifications for "some weird reason."
I've used virus total. One of the vendors being jiangmin flagged the game but just that one.
Yeah, virus total can bullshit sometimes. For what it's worth my AV didn't pick up anything, so I reckon the game is safe.