Hello! Good news: that is a false positive.
Here's one of the many threads regarding false positives for Ren'Py Games : https://lemmasoft.renai.us/forums/viewtopic.php?t=44483
Ren'Py (the engine we used to build this game) uses Python, and sometimes antivirus detectors will tag it due to the download being from an "unknown" source (aka, not from a big company, like Adobe or Microsoft). At the bottom of our page we have instructions for Mac users who experience similar problems.
There are no easy instructions for Windows. We've tested both v1.0 and v2.0 extensively on different computers with different virus scanners and can confirm no viruses detected. Good news is that your computer is not in any danger and never was : ) We'll get to work on adding some information for other players using Windows who might experience similar issues.
(Apologies if you're already aware of this stuff, just wanted to explain in detail in case anyone has similar issues!)
--- Would you mind letting us know what antivirus software you're using so we can test more thoroughly on it? We can try to update the game to avoid whatever is triggering that antivirus software - it can be something as small as adding a custom icon.