Engineer Corps II
10 researches, 156.61T VP to take the whole branch to the top.
| Research | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Requires Academy level 40 | |||||||||||
| Siege Engines' Training Cost VI | 16.9B | 28B | 47B | 78B | 130B | 219B | 317B | 619B | 990B | 1.7T | 4.14T |
| Siege Engines' March Speed VI | 16.9B | 28B | 47B | 78B | 130B | 219B | 317B | 619B | 990B | 1.7T | 4.14T |
| Siege Engines' Carrying Capacity VI | 16.9B | 28B | 47B | 78B | 130B | 219B | 317B | 619B | 990B | 1.7T | 4.14T |
| Fortress Walls I | 900B | — | — | — | — | — | — | — | — | — | 900B |
| Josephine I | 900B | — | — | — | — | — | — | — | — | — | 900B |
| Requires Academy level 45 | |||||||||||
| Siege Engines' Training Cost VII | 170B | 280B | 470B | 780B | 1.3T | 2.2T | 3.17T | 6.19T | 9.9T | 17T | 41.46T |
| Siege Engines' Marching Speed VII | 170B | 280B | 470B | 780B | 1.3T | 2.2T | 3.17T | 6.19T | 9.9T | 17T | 41.46T |
| Siege Engines' Carrying Capacity VII | 170B | 280B | 470B | 780B | 1.3T | 2.2T | 3.17T | 6.19T | 9.9T | 17T | 41.46T |
| Fortress Walls II | 9T | — | — | — | — | — | — | — | — | — | 9T |
| Josephine II | 9T | — | — | — | — | — | — | — | — | — | 9T |