The Grain Mill grinds grain into flour. Depending on its level, your Grain Mill can increase your crop production by up to 25 percent.
Requirements: Cropland Level 5
| Level |  Wood |  Clay |  Iron |  Crop |  Total Pop |
| 1 | 500 | 440 | 380 | 1240 | 3 |
| 2 | 900 | 790 | 685 | 2230 | 5 |
| 3 | 1620 | 1425 | 1230 | 4020 | 7 |
| 4 | 2915 | 2565 | 2215 | 7230 | 9 |
| 5 | 5250 | 4620 | 3990 | 13015 | 11 |
| SUM | 11185 | 9840 | 8500 | 27735 | |
Culture Points
| Level | Culture Points per level | Total Culture Points |
| 1 | 1 | 1 |
| 2 | 0 | 1 |
| 3 | 1 | 2 |
| 4 | 0 | 2 |
| 5 | 0 | 2 |
| Level | Culture Points per level | Total Culture Points |
| 1 | 2 | 2 |
| 2 | 0 | 2 |
| 3 | 2 | 4 |
| 4 | 0 | 4 |
| 5 | 0 | 4 |
| Level | Culture Points per level | Total Culture Points |
| 1 | 3 | 3 |
| 2 | 0 | 3 |
| 3 | 3 | 6 |
| 4 | 0 | 6 |
| 5 | 0 | 6 |
| Level | Culture Points per level | Total Culture Points |
| 1 | 5 | 5 |
| 2 | 0 | 5 |
| 3 | 5 | 10 |
| 4 | 0 | 10 |
| 5 | 0 | 10 |
