Yeah, if you want to play this, you have to go to another website to download, it's abandoned anyway.
Viewing post in Sylphine V.024 NSFW! (18+) comments
From what I saw, it isn't even worth playing. There is almost no content. There's a handful of progression scenes and the only lewd scenes with main cast are dreams/fantasies that don't actually occur in-game or a few scenes with random NPCs, then the game abruptly basically runs in circles at that point due to having no more content. You can easily be done with this game in less than an hour.
Sylphia Island was better in that regard, the time spent on this catastrophe of a game that never should have happened should have went to the original project.