I think I might have gotten all the endings. This is an incredibly atmospheric game, and while minimalistic, every part does heavy lifting. I like the mix of linear narrative, random encounters, and strategic gameplay. It's a good balance that creates satisfying gameplay from multiple angles. And bravo for the bravery to create something very dark. Despite the darkness, I'm glad I decided to play it through. It added something to my life in a little way :3
--Spoilers below!--
The big question is "What is the threat?" I played multiple times to try to figure it out.
Each resource represents a theme, and pairs with an ending. I believe you have to get 10 in a resource to unlock its ending. I always went to 10, anyway. You have just enough time if you focus.
Salt: Military and toughness. It is associated with visiting the barracks, military power, a militaristic mindset, and relationship with the Veteran. It unlocks the battle dream.
Wine: Diplomacy and the court. Associated with going to the balls, royalty, your mother, the cohesion of the round table, and your relationship with the Cousin. It unlocks the mother dream.
Bread: Provisions and the kingdom. Associated with Visiting the court, the church, gaining resources, the kingdom's populace, and your relationship with the Justicar. It unlocks the survival dream.
There is a fourth dream, the judgement dream, that happened when I tried to keep a reasonable amount of all three resources. I would call this a bad end.
There doesn't seem to be an end where you don't die.
Also, I don't think you can be killed before the end, so don't be afraid to meet with people. Especially the Cunning Beauty.
Now onto speculation: What is the threat?
My first theory: There is no specific threat. The fact that everyone's doomed is necessary for the narrative but is not solvable.
However, there are three things that keep coming up that made me rethink that.
1. There is a political threat to the north and a military threat to the south-east. Maybe they invade suddenly.
2. There has been a very deadly plague in the near past, and one village is confirmed to be sick with something. The new queen may also be ill, as she feels ill during a nightly walk. The plague may simply already be in the kingdom.
3. The queen is heavily implied to have been assassinated, and there seems to be an assassination attempt on the new queen as well. There is possibly a traitor in the kingdom, maybe even in the court itself.
As you can see, these threats seem to fall into three categories, seemingly matching the triple theming. I didn't check but it's possible that these pieces of information are presented to you depending on which resource you pursue. Is it possible that they are all misdirections? Is it possible that they are all related? Or is it possible that there are simply three problems all happening at once?
Also, it seems like there ARE trustworthy people in the court. The Veteran, the Justicar, and the Cousin all seem to hold you no ill will at all, and have even tried in some way to show good will outside of their obligations. They are all also associated with a resource/dream route. The Huntress and the Scholar are harder to read. I believe the Scholar is 100% neutral and it only there to be your inventory. The Huntress may be a key to the mystery somehow, but I don't think it's a mystery that can actually be solved.
Anyway, thanks to the dev(s)! It's a good game!