Trireme
Upgrade costs apply when reaching that level from the previous one.
| Level | Offense upgrade gold | Offense upgrade crystal | Defense upgrade gold | Defense upgrade crystal | Time | Workshop |
|---|---|---|---|---|---|---|
| 0 | — | — | — | — | — | — |
| 1 | 1,500 | 1,000 | 749 | 500 | 1h | 1 |
| 2 | 3,523 | 2,503 | 1,958 | 1,321 | 2h | 2 |
| 3 | 10,155 | 6,885 | 5,521 | 3,767 | 3h | 3 |
| 4 | 25,557 | 16,348 | 13,301 | 9,166 | 4h | 4 |
| 5 | 55,604 | 33,927 | 27,910 | 19,412 | 5h | 5 |
| 6 | 108,366 | 63,735 | 52,949 | 37,160 | 6h | 6 |
| 7 | 194,706 | 111,283 | 93,313 | 66,071 | 7h | 7 |
| 8 | 329,014 | 183,865 | 155,574 | 111,126 | 8h | 8 |
| 9 | 530,115 | 291,036 | 248,462 | 179,033 | 9h | 9 |
| 10 | 822,371 | 445,212 | 383,463 | 278,726 | 10h | 10 |
| 11 | 1.24M | 662,400 | 575,575 | 422,019 | 11h | 11 |
| 12 | 1.81M | 963,103 | 844,247 | 624,410 | 12h | 12 |
| 13 | 2.6M | 1.37M | 1.21M | 906,106 | 13h | 13 |
| 14 | 3.67M | 1.93M | 1.72M | 1.29M | 14h | 14 |
| 15 | 5.09M | 2.66M | 2.4M | 1.82M | 15h | 15 |
| 16 | 6.96M | 3.64M | 3.3M | 2.53M | 16h | 16 |
| 17 | 9.41M | 4.91M | 4.5M | 3.48M | 17h | 17 |
| 18 | 12.58M | 6.57M | 6.07M | 4.73M | 18h | 18 |
| 19 | 16.65M | 8.72M | 8.13M | 6.39M | 19h | 19 |
| 20 | 21.87M | 11.48M | 10.79M | 8.55M | 20h | 20 |
| 21 | 28.49M | 15M | 14.22M | 11.37M | 21h | 21 |
| 22 | 36.86M | 19.47M | 18.63M | 15.03M | 22h | 22 |
| 23 | 47.38M | 25.14M | 24.27M | 19.74M | 23h | 23 |
| 24 | 60.55M | 32.29M | 31.44M | 25.8M | 1d 0h | 24 |
| 25 | 76.96M | 41.27M | 40.53M | 33.55M | 1d 1h | 25 |
| 26 | 97.34M | 52.51M | 52.02M | 43.43M | 1d 2h | 26 |
| 27 | 122.56M | 66.53M | 66.49M | 56M | 1d 3h | 27 |
| 28 | 153.64M | 83.97M | 84.66M | 71.92M | 1d 4h | 28 |
| 29 | 191.86M | 105.61M | 107.41M | 92.04M | 1d 5h | 29 |
| 30 | 238.69M | 132.39M | 135.82M | 117.4M | 1d 6h | 30 |
| 31 | 295.94M | 165.43M | 171.21M | 149.28M | 1d 7h | 31 |
| 32 | 365.73M | 206.12M | 215.2M | 189.27M | 1d 8h | 32 |
| 33 | 450.62M | 256.13M | 269.75M | 239.31M | 1d 9h | 33 |
| 34 | 553.63M | 317.44M | 337.26M | 301.8M | 1d 10h | 34 |
| 35 | 678.36M | 392.48M | 420.64M | 379.68M | 1d 11h | 35 |
| 36 | 829.1M | 484.15M | 523.43M | 476.58M | 1d 12h | 36 |
| 37 | 1.01G | 595.93M | 649.94M | 596.91M | 1d 13h | 37 |
| 38 | 1.23G | 732.04M | 805.39M | 746.1M | 1d 14h | 38 |
| 39 | 1.49G | 897.48M | 996.07M | 930.77M | 1d 15h | 39 |
| 40 | 1.81G | 1.1G | 1.23G | 1.16G | 1d 16h | 40 |
| 41 | 2.19G | 1.34G | 1.52G | 1.44G | 1d 17h | 41 |
| 42 | 2.64G | 1.64G | 1.86G | 1.79G | 1d 18h | 42 |
| 43 | 3.18G | 1.99G | 2.29G | 2.22G | 1d 19h | 43 |
| 44 | 3.82G | 2.42G | 2.81G | 2.74G | 1d 20h | 44 |
| 45 | 4.59G | 2.94G | 3.44G | 3.39G | 1d 21h | 45 |
| 46 | 5.51G | 3.57G | 4.21G | 4.18G | 1d 22h | 46 |
| 47 | 6.59G | 4.32G | 5.14G | 5.15G | 1d 23h | 47 |
| 48 | 7.88G | 5.22G | 6.27G | 6.33G | 2d 0h | 48 |
| 49 | 9.41G | 6.3G | 7.64G | 7.78G | 2d 1h | 49 |
| 50 | 11.22G | 7.61G | 9.29G | 9.55G | 2d 2h | 50 |