The following is an overview of all units from Age of Empires II and all its expansions.

Trainable Edit

The following units are available in any regular game. Note that not all of these units are available to all civilizations, unless the All Techs option is checked. To see which civilization can train which units, see technology tree.

Nine different buildings can train units.

Town Center Edit

The Town Center is the most important of all buildings, and trains the most important unit.

Barracks Edit

The Barracks trains and upgrades infantry.

Archery Range Edit

The Archery Range trains and upgrades archers.

Stable Edit

The Stable trains and upgrades cavalry.

Siege Workshop Edit

The Siege Workshop trains and upgrades siege weapons.

Monastery Edit

The Monastery trains and improves Monks.

Market Edit

The Market is center of trade and trains the only available land trade unit.

Castle Edit

The Castle is a strong fortification and also provides unique units and technologies.

Dock Edit

The Dock trains and upgrades ships.