Savegame attached, click Next Turn to confirm. Lyons is the city about to finish a harbor. REPRO STEPS 1. Build a capital city on the coast. 2. Build a second city on the coast and construct a harbor in that city. 3. No trade route appears between the capital and the second city. EXPECTED BEHAVIOR 3. The harbor creates a trade route between the capital and the second city. Possible explanation: a harbor is required in both the capital and the second city. If that is the explanation, then the game's documentation needs to indicate the requirement for a harbor in the capital for all harbor trade routes.