There ought to be at least one interstellar power that represents decay (IMHO, 4th Imperium), one represents a shade of grey and a very tiny pocket of light that for other reasons the players are repulsed by its existance [like the Hivers in TNE, they were there but nobody really wanted to play them as characters].
Naturally, the contents of the black curtain, but make it like an onion, layers of blackness never reaching the core.
Once there was a discussion of Third Imperial Nomads, I think that they would be cool.
LOTS OF Descriptions of the dead worlds that have reverted back to the pre-intersellar age each competiting to make the Giant Step back into Space. With lots of pocket empires.
I think all this plus the prose I suggested are consistant with your vision.
Naturally, the contents of the black curtain, but make it like an onion, layers of blackness never reaching the core.
Once there was a discussion of Third Imperial Nomads, I think that they would be cool.
LOTS OF Descriptions of the dead worlds that have reverted back to the pre-intersellar age each competiting to make the Giant Step back into Space. With lots of pocket empires.
I think all this plus the prose I suggested are consistant with your vision.