I am currently focusing on writing about four of my own right now. I have a bunch more that are just prompts and basic ideas though. One of them (with the most work) called Renaissance Man, already has almost 11,000 lines of code already (almost all dialog). The first sex scene will be before line 300, about the fifth or sixth scene, so it isn't even a slow burn. I just need to finish it, go back through and see where I can put in menus and options (it would be kinetic right now) and find a way to do the art. I actually wrote it as an erotic novel but now I want to turn it into a AVN. I'm hoping it'll translate well once It's all done. The novel form I had already written wasn't finished but already had over 150,000 words.
The other three have way less written. I'll probably finish the smallest one I'm doing that is focused more on three characters over a large harem first. Though there will be a few other girls who can join the MC by the end so it is still a harem but can be played as a throuple game if the player wants that. Only the two mains will be unavoidable, the other three girls will all be optional.
The other two, one is an epic fantasy based loosely on Greek Mythology, and the other is a "superhero" story but it is more than that. I bounce around them because if I tried to just focus on writing one, I'd get stuck. Once I start doing art though I'll focus on one game at a time as far as art goes until it's done but I'll probably always be writing more than one at a time.