This is the funniest thing i ever did to Civ1, love bending games but did not think i could twist Civ1 this far out of shape. Didn't use fast-Settler or shift-56 or sentry-unsentry, only used the save-quit-reload cheat. A few hundred times, but you never know the limits unless you push them. Here's a demographics screenshot just before i won the game. Yep, the Zero City Challenge is now a real thing. I just won the game with no cities, so we know it's possible. Didn't crash or nuthin, no sir. In theory, it should be possible with no cheats, but maybe only on Warlord level. On Chieftan, you can't ditch your last city. Killed my last rival civ in 3,980 BC, but the game hiccuped and skipped 3,960 as if it didn't happen, and ran me though the win-game process in 3,940 BC. But it credited me with the win in 3,960 BC, according to the civscore. Close enough for horseshoes. Another funny thing, here's the game's power graph: There's just nothing there. Nobody had cities for more than a few seconds, in geologic time. Blessed with geography, the starting squares for all 7 civs were on one huge continent. When you know how to manipulate where rival civs respawn, you can control all 6 rivals right from the get-go. This is not a stunning achievement, it was only an exercise to prove two theoretical possibilities: 1. you can win with no cities, and 2. you can beat 14 enemy civilizations by 3980 BC. Yes, i said 14. The Babylonians spawned a free Settler as soon as i killed off Babylon itself in 4,000 BC so had to kill them twice, and although i killed an Indian Settler in 4,000 BC, there was the city of Delhi in 3,980 BC, which i also killed, and then killed the respawn of Mongol Settlers. So killed 12 rivals, but had to kill a couple of them twice. All by 3,980 BC. It's the 1-Turn Win on Emperor with 7 civs. Yes, it's not a true "win" because it pounds on one cheat heavily, but it does prove that it is possible. It got 4th in my HOF, and that taught an important lesson: the highest possible score in a conquest win is dwarfed by the high scores possible when you guide a whole planet to a space win.