The secrets of the most skilled craftsmen have been revealed to your blacksmiths. This has allowed them to improve the construction of carts, making them stronger and more capacious. Upgrade this Knowledge to increase the maximum number of resources sent in a convoy.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Number of Resources in a Convoy | Influence | Hero’s Experience |
| 1 | 2.9M | 2.9M | 2.9M | 2.9M | 2.9M | 96.5K | 5w 00h 00m 00s | 2 | 260K | 125K | |
| 2 | 5.8M | 5.8M | 5.8M | 5.8M | 5.8M | 130K | 7w 2d 00h 00m 00s | Oracle 18 | 5 | 480K | 155K |
| 3 | 12M | 12M | 12M | 12M | 12M | 170K | 10w 4d 00h 00m 00s | Oracle 19 | 9 | 885K | 180K |
| 4 | 23.5M | 23.5M | 23.5M | 23.5M | 23.5M | 230K | 15w 2d 00h 00m 00s | Oracle 19 | 16 | 1.65M | 210K |
| 5 | 46.5M | 46.5M | 46.5M | 46.5M | 46.5M | 305K | 22w 1d 00h 00m 00s | Oracle 20 | 24 | 3M | 245K |
| 6 | 93M | 93M | 93M | 93M | 93M | 410K | 32w 00h 00m 00s | Oracle 20 | 35 | 5.55M | 285K |
| 7 | 190M | 190M | 190M | 190M | 190M | 560K | 46w 3d 00h 00m 00s | Oracle 21 | 47 | 10.5M | 330K |
| 8 | 375M | 375M | 375M | 375M | 375M | 760K | 67w 3d 00h 00m 00s> 1 Year(s) | Oracle 21 | 62 | 19M | 375K |
| 9 | 745M | 745M | 745M | 745M | 745M | 1.05M | 97w 6d 00h 00m 00s> 1 Year(s) | Oracle 22 | 80 | 34.5M | 430K |
| 10 | 1.5B | 1.5B | 1.5B | 1.5B | 1.5B | 1.45M | 142w 00h 00m 00s> 2 Year(s) | Oracle 23 | 100 | 63.5M | 490K |
| 2.99B | 2.99B | 2.99B | 2.99B | 2.99B | 5.16M | 446w 00h 00m 00s> 8 Year(s) | 100 | 139.33M | 2.83M |
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