So is this really just a VN retelling of DxD with H scenes sprinkled in? I'm not terribly sure what I expected going into this, I guess something that takes elements of the source material and runs in its own similar, albeit different direction. Maybe it's just me, as I'm not exactly much a fan of the source material's quality of writing, but I feel like there could have been a lot of potential to take the source material—its characters, elements of its world and synopsis, etc—and run in a different direction with it fitting of a lewd VN. (Don't get me wrong, I'm fully aware DxD is already raunchy ecchi in its actual material.)
Don't get me wrong, I think you've done great work from what I've seen so far. Making any kind of game is a labor all its own, and you really have recreated the story beats and their visuals exceptionally well, but I can't help but feel just a little disappointed. Again, maybe it's just me. The ecchi was great, the girls are pretty, and on paper the elements of DxD's plot are interesting, but none of it was really enough for me to be able to stomach its (in my personal opinion) less than stellar writing.
But hell, don't let me discourage you from continuing to run with this. Like I said, you've done a really good job recreating everything in Ren'Py. A lot—hell I think all—of the shots you've taken from the source material, you've recaptured and redone very, very well. From a technical standpoint, this is really solid work. I guess I was just hoping for something more, and that's entirely my problem. At the very least, from what I read off of the description of this very page, I definitely didn't expect a note for note recreation of DxD in Ren'Py. If nothing else, I suppose I'd recommend making that just a little more obvious, a little more clear?
Regardless, keep at it. My intention here isn't to discourage, far from it, really I just wanted to share my thoughts. You're obviously onto something good if this many people are invested and into it.