|Introduced in||The Conquerors|
|Armor classes|| Building|
|Line of Sight||2|
Campaign appearances Edit
- The Walls of Constantinople: The Docks of Constantinople are protected by Sea Walls.
- The Fall of Rome: There are Sea Walls protecting the Docks of Aquileia.
- In the beta version, Sea Walls and Sea Towers were built by a "Builder Ship", which could also build Docks, Sea Gates, Sea Towers, and repair ships.
|Unconstructable buildings in Age of Empires II|
|The Age of Kings|
|Cathedral · City Wall · Dome of the Rock · Fortress · Great Pyramid · Mosque · Pavilion · Pyramid · The Accursed Tower · The Tower of Flies · Trade Workshop · Yurt|
|Monument · Sea Gate · Sea Tower · Sea Wall|
|Amphitheatre · Aqueduct · Arch of Constantine · Colosseum · Fire Tower · Fortified Palisade Wall · Gol Gumbaz · Poenari Castle · Quimper Cathedral · Temple of Heaven|
|The African Kingdoms|
|Barricade · Fence · Granary · Hut · Palace · Sea Fortification · Storage · Tent|
|Rise of the Rajas|
|Army Tent · Sanchi Stupa|