"White Whales" in a series that have been silent so long they are probably cancelled but people still hold out hope for
So when it comes to TRPG's i try a lot but i'm a Call of Cthulhu man at the end of the day. I'm not big on power fantasies or "heres a bunch of random stuff from different time periods thrown together" settings so the investigation focussed gameplay of CoC and its obsessive attention to detail on time period stuff really nails what i'm looking for.
While part of this is the elegant simplicity of the core gameplay loop i.e "roll a D100 to get below the a skills 1-100 value you are rolling against to do a thing" another is its fantastic line of setting books.
Want Wild West? heres Down Darker Trails with in depth rules related to old firearms, horse riding, how dine' culture was at the time and how to display it respectfully rather than stereotypically and so on. Want victorian london with coppers chasing down Jack the Ripper making sacrifices to Dagon? heres Cthulhu by Gaslight. How about a game set in Britain after the collapse of rome where your hamlets Jarl has sent you out beyond the island of safety and light that is your village to investigate a strange monastery with a historian written naming convention guide for which viking or norman king rules your region or wessex? heres Dark Ages Cthulhu.
Theres others. French Revolution, Regency England, Ceasar's Rome, modern day Tokyo and so on. Want to do a full Eternal Darkness knock off? go nuts. Hell they just released one where everyone plays scouts in the 1990's. But theres still some people are waiting on years after their announcement.
The most famous of which is "Colonial Cthulhu" announced in the back of Down Darker Trails back when it launched in 2017. People buying the Wild West Cthulhu being the ones most likely to be down for "Puritans fresh off the Mayflower find out theres a reason the natives stay away from those strange ruins" type stuff was the thinking we were told at the time and after films like The VVitch interest in the setting only grew.
But that was 9 years ago and we have had stuff like Cthulhu by Gaslight get entirely new from the ground up editions in that time but Colonial Cthulhu has never shown up. Theres plenty of rumours why but i have never seen any hard confirmation. So to this day its seen as something of a white whale with CoC players where people seem to want it more because of how long its been known about but at the same time most seem to thing its probably been quietly cancelled years ago and stuff like the Scouts book simply took its place.
Personally i love these setting books. Rather than just go "eh set it whenever" each is a carefully curated way to take the core rules but transplant it from the 1920's america default to all these other extremes and theres still others on the way like Medieval France that have people excited for what new custom rules and items they will bring. But to this day Colonial America is the setting people seem to want mostly because we seem to have accepted at this point its just not happening.
Whats your go to game series, videojuego or dice rollan variety, that has a "coming soon, no date available" release everyones waiting on but probably know is dead?