Recon units and naval raider units gain +1 Movement and +1 sight. Military units gain +2 Strength. Clearing Barbarian Outposts provides +50 Gold. Conquering cities grants Tribal Village rewards.
Normal Age
Each Barbarian Outpost cleared provides +1 Era Score. Each city conquered provides +3 Era Score.
Dark Age
Each Barbarian Outpost cleared provides +1 Era Score. Each city conquered provides +3 Era Score.