Civilization IV city growth, improvements and maintenance
Understand worked tiles, food surplus, cottages and the costs of expansion.
Edition covered
The original 2005 Civilization IV base game. Warlords and Beyond the Sword add or change leaders, traits, units and systems; their additions are excluded. Images are publisher screenshots for the base PC game.
Work the tile you improved
A city assigns citizens to tiles or specialist jobs. An improved tile outside current use may supply a connected resource, but its ordinary yield does not all enter the city automatically.
| Improvement | Main role | Requirement to remember |
|---|---|---|
| Farm | Additional food | Terrain and technology restrictions |
| Mine | Production | A legal hill or resource tile |
| Cottage | Commerce that grows while worked | Needs citizens working it |
| Pasture | Improves livestock resources | Animal Husbandry |
| Road | Movement and network connections | Route-building access |
Balance growth and useful population
Food surplus grows population. Unhappy citizens do not perform normal productive work, while poor health adds food pressure. Growth is valuable when the extra citizen has a useful job.
| Symptom | Check | Possible response |
|---|---|---|
| City stops growing | Food surplus | Work more food |
| Unhappy citizens | Happiness limit | Secure happiness sources or pause growth |
| Food lost to illness | Health balance | Add health sources |
| Research collapses after expansion | Maintenance and commerce | Develop economy before another city |
| Improvement seems ineffective | Tile assignment | Ensure the city works the intended tile |
Develop the city's economic role
Food supports specialists or productive low-food tiles; mines support production; cottages develop commerce over time while worked. Choose improvements for the city rather than building the same pattern everywhere.
Check maintenance before another settlement
Distance and city count contribute to maintenance. Connect and improve new cities instead of settling repeatedly without support. Courthouses and economic development help sustain a larger empire.
Distance and city count contribute to maintenance. Connect and improve new cities instead of settling repeatedly without support. Courthouses and economic development help sustain a larger empire.
References
| Reference | Website |
|---|---|
| Sid Meier's Civilization IV publisher listing | store.steampowered.com |
| Firaxis Civilization IV manual | store.steampowered.com |