So, I've been reading GURPS sourcebooks some time ago, and I enjoy the various wacky alternate worlds that are presented there. They're not exactly "hard" althis. and some bits can seem very Eurocentric (I find it funny how in many timelines here, the continent of Africa has vast swathes of land occupied by the dominant powers of the setting), but whatever. If I find a setting fun, it's fun.
But then there's Roma Aeterna, an alternate earth that don't exactly find cringeworthy, per se, but definitely highlights a pet peeve of mine.
In this timeline, the Roman Empire survives, all the way up to the current year of 1893. The empire has guns, steam-powered chariots and typewriters, but their society, unless I'm misremembering, looks and acts exactly like the historical one.
I get that accounting for how a culture changes as time goes on requires not only buttloads of research, but for authors to also basically invent entire societies from scratch, which is already pretty difficult on its own, but... I don't know. Taking antique civilizations and just giving them advanced equipment with no other change to their overall presentation is so lame to me. I feel like it would be interesting to show how exactly time affected the society that survived. Maybe the caste systems of old get put into disarray due to the rise of merchant guilds. Maybe they create a U.K. style parliament system, or even get rid of monarchs altogether. I mean, something would be nice, other than "Romans survived, they have rockets now".