The game is hosted on the indie platform itch.io , where it is categorized under NSFW and Netorase/NTR genres. If you have downloaded this .rar file, you will typically need a utility like WinRAR or 7-Zip to extract the game files (often an .exe or a folder containing a browser-based project) for play.

The file appears to be an archive for the adult indie game NTR Alchemy , subtitled " Before I knew it, my beloved wife and best friend completed the human transmutation ."