I Transmigrated into an Ancient Famine, and the System Helped Me Rise

Su Chen, a modern man, transmigrates into a disaster-stricken refugee in the apocalypse, nearly dead from the start and bound to the [Refugee Survival and Rise System]. He crawls out of a pile of corpses, gathers refugees, forages for wild greens, makes gunpowder, and drives off powerful enemies. From having nothing to ruling a territory of his own, he uses the System to farm and fight for supremacy, carving out a new dynasty amid the chaos. No mindless power fantasy, no magic: watch a refugee climb step by step to rule the world!