Im actually susprised that there never was an actual competitor to the game.
One would think a DB harem parody would be an easy thing to make but no,no one seems to care(then again,guess thats the big franchise curse,I mean just look around and most have 1 actually decent parody,2 at most).
Cant be the lack of character appeal as there is plenty of R34 out there.
Is it the franchise´s age(not that that stops others)?
The narrative style(again,not that that stops others)?
The timeskips,narratively placing waifu material far apart?
Blows my mind that Love Hina and DNA² have competent dating sims but DB seems to only be able to scruntch up some cheap "avoid or rape"-games at best.