How can I arrange a starting set-up that simulates a post fall of a galactic empire?
I would like to have (1) few civilized starts (let's say 3%-6%) still connected to my homeplanet (the other stars can be under my control or friends/allies), then (2) about 10%-20% systems that I already partially knows, but no paths are known to reach them, i.e. I know from 15% up to 80% of each system objects, and eventually if there is some active population (e.g., I can monitor signals using a sort of SETI), but I can't get there, (3) other 20-30% of known stars but no information about them and I can't travel to them, and (4) the rest of the stars are unknown.
Types 3 and 4 could host some remains of civilization, but I don't know anything of them. If/When I meet them during exploration, possible reactions could vary from absolutely friend to super-violent xenophobic.
At the game start, tech levels, mine and of the unknown civs, in different sectors, can be variously advanced.
And obviously, aliens and the rest of goodfellas are still around.
Is it possibile this sort of beginning?