I've never run Unciv! First i'm hearing of it honestly. I'll have to check it out.

I can say from this experience, the first 24-72 hours of the game was people just complaining in our group chat that the FreeCiv client sucks (it really does). I'm very tempted to jump in and make a few improvements, there's a really awful bug that impacts the ability to move stacked units - and if the diplomacy state changes while units are in the territory of a previous ally, they are unable to move whereas in Civ2 (legit Civ) they just get auto-pushed back to the borders immediately.