Hello,
Sorry for the trouble, we’re in the process of making it easier to get your content tagged correctly, including having a list of special tags that will automatically put your game in the adult section. If you use tags like ‘nsfw’, ‘erotic’ or ‘adult’ it will automatically configure your page without having to go the metadata tab. In the future we’ll add more information about this on the game edit page but I hope that helps in the meantime.