Porn games do work on immersion and on realizing the players' desires, maybe in twisted form. They lose their charm when it breaks, you stop playing, and are just hunting for that one last scene. I have no idea how you can play them without immersing yourself in them.I don't want to do this in real life (I don't hurt anyone at all). That's why I play games like this. If I wanted to do this in real life, I wouldn't play games, I would do it in real life.
Also, I don't want to build cities while playing civilization. I don't want to run and gun in a war while playing shooters. When playing chess, I do not want to attack others with war bishops and knights. How much negative IQ do people have to have not to understand this?
This might not be universal among non-pornographic genres. But I do want to build cities and make them great places to live. I do want to fight enemies of humanity with a gun in hand.
And I do want to send my war elephants to trample Romans, but chess is not an immersive game for me. It's too abstract. So abstract that in English, they are bishops, not war elephants.
P.S. Romans were the villains of Antiquity. When they were defeated, Antiquity was over, and humanity could advance to the Middle Ages arc.