Why western audience rejects porn games ?

[Mr Khan]

There have been a few western porn/date sim games, but they have almost universally sucked (even by the fairly low standards of such games. I believe Plumber's Don't Wear Ties was a date sim, albeit a fairly tame one)

 

But it does boil down to cultural differences. Pornography in the west has, in modern times, always very much been an underground thing, not something that a major publisher could profit off of. In Japan, it's easier to sell this sort of thing over the table. It's not mainstream, by any means, but its not something that you have to hide from everybody either