In Civilization IV a leader trait is a special ability or rule modification that applies to any civilization led by a leader with that trait. Leader traits are often called just traits.
List of Leader Traits
The leader traits are:
| Trait | Properties | Production bonus of +100% for |
|---|---|---|
| Aggressive | Free Combat I promotion of melee and gunpowder units. | Barracks and Drydock |
| Creative | +2  per city.
|
Library, Theater and Colosseum |
| Expansive | +2  per city and, in BtS, 25 percent faster production of Worker.
|
Granary and Harbor |
| Financial | +1  on tiles with 2 already
|
Bank (removed as of ~3.13?) |
| Industrious | Wonder production bonus of +50% | Forge |
| Organized | Civic upkeep reduced 50 percent | Lighthouse and Courthouse |
| Philosophical | Great people point bonus of +100% | University |
| Spiritual | There is no anarchy when changing civics | Temple |
| Trait | Properties | Production bonus of +100% for |
|---|---|---|
| Imperialistic |
|
|
| Protective | Archery and Gunpowder Units receive free Drill I and City Garrison I | Walls and Castle |
| Charismatic |
|
- |
Table of Leaders and Their Traits
Each leader has two leader traits. These are shown in the following table.
