*all your other games minus roomates in which your choice in gender changed content enough that it warranted being technically 2 separate games
But roomates is a dating sim, romance is a big part of it .
If roommate was only "one game" some people would not buy it because they would feel like they are paying for the full game while they are only interest in some of it.
I suppose that most people who are only interest in BxG only bought max's story and only play the 3 BXG routes in other words, 3/4 routes that they bought.
If roomates was one game they would play 3/8 routes...some people may think that they are paying 5/8 of the price for nothing and decide to not buy the game.
so it may be for the best to slip the game in two.
it's same thing for heileen 3 new horizon and sea maiden, spirite heart and spirite heart girl's love ,nicole otome and yuri.
It makes me wonder how many peoples were only interest in the BXB option and bought both stories....I know I did
. Well...I did play all the routes in the end but...