almost 1 year ago - Crater Creator - Direct link
I’m no historian, but… the ordering aligns with Wikipedia’s ranking of the largest empires by area[en.m.wikipedia.org], which the article says is the most commonly used metric. First French colonial empire < Roman Empire < Macedonian Empire < Mongol Empire. I get that going by people killed would be a more direct analogue, but… eh, those were real people and that’s a morbid direction to take a game.

Correction: the game currently makes Alexander the Great the harder achievement than Genghis Khan, which doesn't align with the linked ranking.
almost 1 year ago - Crater Creator - Direct link
So I see. I agree with you, that there would be a logic to making Genghis Khan a harder achievement than Alexander the Great. I thought it was but I read your top post wrong.