Thalassicus
Bytes and Nibblers
Korea has high science output, but doesn't get defensive bonuses, or even a starting military unit. The walls and archers let Babylon expand quickly and safely in the early game to claim lots of territory. They're one of the few leaders capable of rapid early settlement. Korea favors an inward-focused tech and turtling game without much expansion. I sense people may be trying to play both like Korea? These leaders have very different playstyles.