Yep, figured
All of those are different kind of games entirely. Those are VN, visual NOVELS. Basically CYOA. The gameplay is railroaded with branching paths, so the variables are relatively simple. You basically choose proper answers to get proper routes. There is less freedom and the stories will be mostly linear, but it's easier to add more into the stories, so it's easy to just add harem route
This game is a SANDBOX and also DATING SIM . The variables are much more complicated, but players are given more freedom
So basically, you shouldn't compare this games with those on your lists. They are different kind of games. It's like comparing chess with monopoly.