Age of Empires Series Wiki
Age of Empires Series Wiki
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This article is about the building in Age of Empires III. For the building in other games of the series, see Wall.

A wall. Prevents enemies from entering a colony.
—In-game description

The Wall is a defensive structure in Age of Empires III. Available in the Discovery Age, its purpose is to protect an area from enemy attacks. The Wall is available to all civilizations in the Exploration Age, except the Lakota, who can build it from the Industrial Age*.

A Gate can be upgraded on a Wall section which lets through own units and allied units, but never enemy units.

The Church or Wall itself provides the Bastion upgrade, along with the appropriate Gates for stone Walls.


Age Technology Cost Effect Civ.
Age I tech tree aoe3.png
Gate portrait.png Build Gate 50 wood Places a Gate in this wall. Allied units can pass through but enemies cannot All
Age III tech tree aoe3.png
Bastion.png Bastion 400 wood,
600 coin
Walls get +400% hit points but increases Wall build time by 50% EU
Redoubts.png Redoubts Walls get +200% hit points and -20% cost, but increases Wall build time by 40% United States
City walls aoe3de icon.png City Walls Walls get +400% hit points but increases Wall build time by 50% AF

Home City Cards[]


Age of Empires III[]

  • Walls have 3,000 hit points and 4 LOS.

The WarChiefs[]

  • The Sioux cannot build Walls.

Definitive Edition[]

  • Walls have 1,500 hit points and 1 LOS.
  • The Lakota can build Walls from the Industrial Age.


Early fortifications in the New World were palisades constructed of sharpened tree trunks driven into the ground side by side to form walls. Some of these palisade walls, especially when a little green, were remarkably effective at withstanding bombardment by artillery because they could flex as they were hit, rather than splintering, like dried wood, or shattering, like masonry walls.

More effective than either wood or stone at withstanding bombardment were the bermed earthworks famously ringing star forts like Fort McHenry. A fort in the era of cannon was a series of sculpted plains, ditches, bastions, and walls of earth and stone that maximized lines of sight and fire for defenders.