Yeah, so my point still stands about this game risking treading old ground. Sure, a few things might have changed . . . but ultimately if the MC's memories get wiped, he doesn't learn anything. So on the next cycle, in Recalibrated, he'll have to relearn everything.
What's more, my previous comment was more about Sexbot not really being story driven. It's more just about unlocking sex scenes with different girls, and then the apocalypse is thrown in at the end. To see what I mean, you have to stop and consider what a story is and what it's structural elements are.
For example, the hero is usually a character with some kind of psychological or moral weakness. Through the pursuit of some object or goal, the hero usually addresses his weakness and achieves some sort of self-revelation or new equilibrium. Along the way, there are allies helping the hero along and, especially, at least one opponent. In the best stories, the opponent is often competing with the hero for the same goal. This competition generates plot.
If you look at Sexbot as a whole, you'll likely notice it doesn't deal that much with the above elements. Yeah, Melvin and that mysterious lady could be deemed as opponents, but they never really compete in Sexbot in any meaningful way with the MC. If anything, Sexbot has the barest foundations of a story, and if we take the conclusion of the apocalypse, only upon seeing it do we finally see the stakes. Sexbot, if anything, is only an introduction.
But the MC's memories have been wiped upon learning the ultimate stakes, so the story is forced to circle back around to its foundations and risk treading old ground--rather than proceed full steam ahead. Another ending for Sexbot could have been the following sort of revelation for the MC: "Holy shit! All this time travelling for the sake of banging chicks has brought about the apocalypse!"; then, with that new revelation in mind, he and Alexa go back to try and manipulate time consciously for the greater good, but of course gets into other sexual shenanigans, and other time manipulators get involved. Instead, his memory is wiped, and only a few things have changed.
Hopefully, it will expand upon its story, rather than just repeat the previous formula, where the MC kept going back in time just to slowly break down the women, without serving some larger narrative.
Also, I should mention that I don't think sex games need to have the most powerful, jaw-dropping stories to be good. Mostly, I am concerned with story in so far as it can keep a stranglehold on the types of scenes/content that can be created among characters.