It's the newer versions onwards at least when it was updated in 2025 on itch that have that malware flag for some reason, running the public build from 2019 on steam should be clear. Funnily enough the itch version got updated literally today but I'd stay away from it personally, dev doesn't work on it anymore according to him and swapped to visual novels so I'm perplexed as to what is being changed, bizzare all around.