After the War, and Performing the End
After the War is, quote: “a tabletop science-fiction role-playing game of memetic horror. Ten years after the galactic war, millions of survivors try to rebuild on the frontier world of Polvo. They seek to guard their new homes from internal strife and the psychic fallout from the war.” This does not do justice to the horrific history that your characters have to deal with.
Among After the War’s inspirations is Fiasco. Like Fiasco, the game proscribes a slightly more regimented method of finding out what happens next, apart from the more laissez-faire method of most RPGs.