Something that frustrates me about most historical fiction is that the hero is almost always out of place and time. The hero and his companions act and hold beliefs like a modern westerner, even when everyone around them doesn't. Even when the belief was so ubiquitous that it was held by 99% of the population. Somehow, your hero is always in that 1%.
This is even worse in RPGs because they offer you a choice, but that choice is usually limited to "be nice like a westerner" or "ignore it."
Just slap on some fan service, like a big burly bear guy, a sparkly gay vampire, an evil dommy mommy, a happy-go-lucky child-bearing-hips mommy, and a fake-evil "dark past uwu" traumatized maiden, and you'll get Game of the Year award in no time. :blobcat-smug:
(If you know, you know. No I'm not seriously mocking it, it's great.)