what engine mix exactly is being used here? I don't mean to sound rude but with the amount of money this game made, there is simply no excuse to have one updated every 6 months if at all. I'm not a game maker so hell, maybe all that money isn't enough to keep making new content.
Don't know exactly what you are asking but as per the title tag, this game is made in
Ren'Py, the images themselves however are made using a "
game" called
Honey Select(HS) made by a company called
Illusion with a bunch of mods added to it, and are just that, regular images, they take time in the sense that you have to
assemble the scene and a bit more
if you decide to pose the character how you like it instead of using the premade poses the game comes with, but there's no extra rendering whatsoever since HS is running in real-time(since it's technically a game), and there's no post-processing(ie. Photoshop) either on the finished images as far as I know.
The bulk of the delays in this game(as per the author claims), is the writing, which I can sort of relate since I can't write shit myself(but still), and the re-tweak of already made scenes because they're not up to quality(again according to the author).
But all said and done, yes, as it currently is, there is indeed no
regular excuse to have one updated every 6 months if at all.