If you are referring to the indie game or mod often found on sites like Itch.io or community forums, here is a general review of what to expect: Genre: Indie / Adult / RPG-Lite
This will help me provide a more specific review of the gameplay, story, or utility. File: Devil_Girl.rar ...
You will need a program like WinRAR or 7-Zip to unpack the file. If you are referring to the indie game