Sort of an adjacent idea; It could be really cool to have a rp where the users play as a pantheon of gods who are slowly being forgotten, and need to take some kind of action to remain existent. [i dont plan on making this or anything, i just enjoy chatting :p]
Could also be fun to play as mortals in the crossfire of said dieties’ plight for relevance, some ideas about culture being made by the people (?) and that sort of thing; the dieties’ power coming from the peoples’ belief offers a strange power balance that could be interesting to explore. Like, they’re becoming weaker as a result of becoming more and more forgotten, and are having to rely more on the help of others etc.
It’s possible American Gods by Neil Gaiman explores similar concepts; I’m pretty sure the god-hood (?) in that novel works in a similar way, but I haven’t read it so I wouldn’t know :D.