Still, I wish people would try to branch out. I've played a few games set in Russia, and even the few subtle variations on daily life were really intriguing. There's erotic scenarios in other countries that you would rarely see in the USA.
Also, the problem of sameness isn't necessarily that we're confined to America-America is a huge and varied place, which helps feed its massive cultural complex. The problem is that we're largely stuck in two areas of American life: life in an upper-middle class suburban family, or the life of an upper-middle class college student. I'd daresay that accounts for 80%+ of the games on here, and I think it's noteworthy that some of the highest rated games like City of Broken Dreamers or Long Live the Princess are those that break out of that area somewhat.
Problem is, those sterile suburbs or cookie-cutter families are not *inherently interesting*. There are interesting stories to be told there, but not with the quality of writing in your average porn game. Hence, we have 500 games about fucking your neighbors, classmates, or family that are so alike as to be interchangeable.
After the colossal disappointment that was Subverse, I think it'll be a long time until the western porn game market reaches the level of Japan or Korea. I mean, it's nuts how different it is there-in those countries you'll have pornographic stories that tell towering romances, epic fantasy tales, or gritty real life crime stories. They'll get adapted into full shows (usually not as smutty, of course), movies, or even major franchises that make gobs of cash over decades. And in the west? We have 10,000 ways to fuck your mom. But only if she looks like she's an extra from an early 90's saturday morning kid's show like Reboot.