| “ | Wall hitpoints increased. | ” |
| —In-game description | ||
Bastion is a technology in Age of Empires III that can be researched once the Fortress Age* is reached at a Wall, while European civilizations can also research it at the Church (Mosque for the Ottomans, Basilica for the Italians). Once researched, all Walls get +600% hit points, but increases build time by 80%.
Bastion is available to European, Asian and Native American civilizations except for the Sioux, who cannot build walls in the first place. With the release of the Definitive Edition, the Lakota can build Walls from the Industrial Age, so Bastion is only available to them from that age.
Changelog[]
Age of Empires III[]
- Bastion gives Walls +150% hit points and is available from the Colonial Age.
The WarChiefs[]
- Bastion is not available in the Sioux technology tree.
Definitive Edition[]
- Bastion gives Walls +400% hit points, but also increases Wall build time by 50%, and is available from the Fortress Age.
- Bastion is available in the Lakota technology tree from the Industrial Age.
- With update 15.30007, Bastion cost was changed from 400 wood, 600 coin, to 600 wood, 600 coin.
Knights of the Mediterranean[]
- With patch 15.30007, Bastion effect changed from +400% hit points to +600%.
- With update 15.59076, Bastion increases Wall build time by 80%.
See also[]
- Redoubts – American equivalent
- City Walls – African equivalent
| Religious technologies | |
|---|---|
| Shared |  Town Watch ·  Gas Lighting ·  Standing Army ·  Mass Cavalry |
| Europeans |  Bastion ·  Mission Fervor ·  Mercantilism |
 Mexicans |  Holy Mass ·  Liturgy ·  Guadalupanos ·  Cry of Dolores ·  State Religion ·  Visit of the Seven Houses ·  Día de Muertos ·  Redoubts |
 Ottomans |  Millet System ·  Koprulu Viziers ·  Grand Bazaar ·  Galata Tower District ·  Topkapi ·  Tanzimat |
 United States |  Medical Science · Bill of Rights · Redoubts |