There is the “App Manifest” route you can explore, which could allow you to set custom actions when players run your game from the app. You could add buttons like “Play in english” which would execute your game like “mygame.exe –lang=english” or something like that.
I haven’t used the app manifest before, but I believe this wouldn’t work for users browsing your game from the web. I also don’t think the manifest was designed for this, but I could be wrong on that.
The other path is to ask the user to change language when the game opens, optionally saving their preference for future use. This would ensure your downloads section does not look too busy showing all languages.
The downside being that all language-specific assets will also be included, even if a user is only interested in one of them. This is not a problem if your game only has localised strings and not any other assets, as strings are pretty minimal in size.