Been upping difficulty from 1 to 2, then 3, and now started on 4 and I did very well on 3. Started on a medium sized island with Theodora (Byzantium) and Napoleon. I wanted to aim for Science victory so I started a Science route. Around turn 40 Napoleon just randomly declares war on me, at this point I had 1 Pikemen (upgraded from Warrior from a Ruin) and 1 Archer. Pikemen gets insta gibbed and he throws about 13 - 14 units at me, consisting of Warriors, Chariots (!), and Archers.
No idea how but I managed to survive with just my 1 city, war went on for about 40 - 50 turns. I managed to squeeze out a Composite Bowman upgrade, then another Bowman a few turns later and pushed him back. He tried to negotiate peace with me, I declined as he has a city on my doorstep. I pushed further, he re-offered me, but this time included the city. I accepted, and he has pretty much no army left and I'm up to 3 cities with a fourth incoming and have just about Renaissance Era at turn 130~, with 7 Wonders built.
Such a brutal start, but great fun
TLDR: Napoleon
No idea how but I managed to survive with just my 1 city, war went on for about 40 - 50 turns. I managed to squeeze out a Composite Bowman upgrade, then another Bowman a few turns later and pushed him back. He tried to negotiate peace with me, I declined as he has a city on my doorstep. I pushed further, he re-offered me, but this time included the city. I accepted, and he has pretty much no army left and I'm up to 3 cities with a fourth incoming and have just about Renaissance Era at turn 130~, with 7 Wonders built.
Such a brutal start, but great fun
TLDR: Napoleon