Fair enough. Tastes obviously vary.
I talked about the elevator pitch I did for a Despair campaign where the world was dying. That's the point of the campaign. How do you act knowing that at any point in time, everything will die. And, it's not a question of if, it's when. The world is dying. When it will die isn't known, but, it's not a faraway time. It's measured in years or maybe decades.
To me, that's a really interesting setting to start from. You know that there is no future. So, what will you make your present? Do you rage against the dying of the light? That sort of thing.
One of the elements of the Scarred Lands setting that really spoke to me was the Elves. In Scarred Lands, the elven god was killed in the wars with the titans. Because of this, no more elves are born. The current generation of elves is the last. They can have children with other races, but, "elf" will be extinct very soon. I loved the concept. How do you play your character knowing that not only are you the last of your kind, but, when you die, no god will be there to pick up your soul. Death is forever. For an elf, that's a fascinating twist for me.
Unfortunately, NGL, for me, if I knew there was no hope like in that former example, I probably would just...waste away. I can't bring myself to be cruel to others, and hedonism has no appeal. I know I'm incapable of any physical fighting (or even much in the way of manual labor), and trying would just mean I suffer as I die.
The latter is somewhat more interesting, because there are different kinds of "survival". Being an "elf" biologically might not survive, but that gives a choice of how to memorialize your culture.
That is, for example, there are no more Mycenaean Greeks, nor Minoans. We don't even know how to read all of their language. We only
recently learned how to read
part of it (translating Linear B, the script that is Greek rather than Minoan). Yet they continue to affect us today, in various ways, and we continue to look back at them and wonder, and try to understand. That's a legacy, despite the dramatic break. Egypt (Kemet), Harappa, all sorts of ancient places, are legacies too. Even if your
people end, your culture doesn't have to. While I think it might be hard to grapple with at times, that, at least, is a question I could be motivated to answer. "Your world is guaranteed 100% doomed, you don't know when it's gonna happen but it IS going to happen, these are the last days and
nothing will survive it, not even a legacy will remain", by comparison, is "okay, so...maybe try to have a good time for a bit, maybe help somebody if you see them suffering, but otherwise, lay down and die, it'll be less grief that way."
When there's even the ghost of a chance that something could differ, awesome. I don't have to succeed (though that is obviously preferred), the attempt matters. "Till shade is gone, till water is gone, into the Shadow with teeth bared, screaming defiance with the last breath, to spit in Sightblinder’s eye on the last Day." I dream of saving worlds like the World of Darkness setting, which I don't believe is beyond saving. But if I genuinely
know that it's beyond saving, and not just that, but it could expire
any minute...I'm gonna get my affairs in order. If I can fling myself at something that might be useful to someone I like, sure, but otherwise, no point. Caring just deepens my suffering while changing nothing.