Treasure of Nadia has something over a year left to run and so at least 26+ updates yet to be released. It is hence completely impossible to have enough super-sexy chapters, released every two weeks, to satisfy the fapper contingent.
Plus, although not many hereabouts seem to have noticed it, Treasure of Nadia is actually an epic story, presented in game form, playing out steadily and slowly, which is as good as any series of comic books or graphic novels you can shake a stick at; this means that a lot of chapters HAVE to be devoted to advancing the story in ways which don't involve explicit sexual scenes.
Treasure of Nadia is much, much more than just a sexy and/or lewd game and, speaking personally, I can't remember one single episode which I haven't enjoyed, got something out of, and been bowled over by its content and its quality.
For those who fail to appreciate ToN as it merits, i.e., as a work of art, cut down on the wanking.
(Excessive self-abuse is probably addling your brain!)