Outposts are the final stage in many provinces. It is represented on the map by a tower. Contrary to most stages, which are against the AI, conquering an Outpost requires one to raid a real-world opponent's team of 5 heroes.
The number of Outposts that you have conquered determines the percentage bonus to production that you will receive at your base's watchtower. Each Outpost increases the output by 5%.
Unlike other levels which use red world energy flags, outposts require 1 purple raid energy flag.