Zombie diplomacy

[greatUnknown]

Apparently, a faction is not eliminated even if it loses all of its cities;
as long as it has any units alive, it still exists. However, you can tell
it's only walking dead because on the diplomacy screen, it shows no
economy.

About two dozen turns ago, Divine Ascension wiped out Solar Dynasty. In this case,
Solar Dynasty shows no economy, no military, but 1 research and 4 diplomacy.
And just now, it offered me an alliance, which I accepted.

So, I have an alliance [which shows on the diplomacy screen] with a dead faction.
Zombie diplomacy indeed. I wonder if it will drag me into a war.

It's cute, but maybe a faction should be considered eliminated when it has no cities,
even if it has a stray former in some obscure corner of the map. An exception would
be if the surviving unit is a colonizer.

[NightReaper]

Maybe faction suffering loss of last city should be given option of resigning or converting remaining unit(s) to a colonizer for a last ditch attempt at survival? AI choice could be random dice throw?

[Rossthegreat]

Maybe faction suffering loss of last city should be given option of resigning or converting remaining unit(s) to a colonizer for a last ditch attempt at survival? AI choice could be random dice throw?

And then that final city with 1 pop will be wiped out in one hit by a nuclear missle where it would've stayed alive if it kept its forces to bunch of units.
One game divine ascendant managed to spit out one more city on another continent with 1 population before she lost the last of her mainland cities. I was like aw man!

Then I used satellite sights on the final city and saw its undefended and then drop podded one colonial troopers into it and finished her off.

Where normally in civ 5 or 4 series I would be forced to assemble a small fleet to go after them xD

[greatUnknown]

Make the survivor colonizer and city invisible to satellite scans for twenty [just off the top of my head] turns?
You don't know about them unless you physically track them down.

[Rossthegreat]

Make the survivor colonizer and city invisible to satellite scans for twenty [just off the top of my head] turns?
You don't know about them unless you physically track them down.

And then I will just wait for 20 turns then start killing the said city in 20 turns. And the city will eventually become visible on world map unless it's color is good enough to sneak into other borders to go unnoticed for long time. But in that form it effectively become a mere city state that can insult you xD But do no more. If they expand, they become easier to find again.
Its just a nature of this game, once you fall down, you can't climb back up again unless it miraculously happen to four other opponents too somehow.

Because this one city will need something like 10+ population at minimum and be able to build a whole new army and expand new colonizers for you. And terrain is very likely to be suboptimal.

But I've been reduced to a city state and rebound in other games, I think same can happen in this game too as long as you're the human player, not the AI.

There's just simply so many ways to squash a insolent weed city xD