Built with stone, this is the first wall that can be built for a civilization, an artificial barrier that can’t be passed by any unit, but can be destroyed. The small wall has no great resistance, but is ideal to mark a territory and defend it against soldiers of Stone and Tool Age. The wall have no attack, and is used only for stopping enemy units. It's recommended to put towers, archers or other long range units behind the walls. The Small Wall can be researched in the Granary, and cost 5 units of stone. It can be upgraded into Medium Wall.