UPGRADES
| LEVEL | DEFENSE | DURABILITY | RECIPE |
| Level 0 | 9 | 300 | 4x  3  3x  |
| Level 1 | 10 | 300 | 1x  1x 1x 1x  |
| Level 2 | 10 | 300 | 1x 1x 1x |
| Level 3 | 11 | 300 | 1x 1x 1x 2x |
| Level 4 | 11 | 300 | 1x 1x 1x |
| Level 5 | 12 | 300 | 1x 2x 2x 1x  |
| Level 6 | 13 | 300 | 1x 2x 2x |
| Level 7 | 13 | 300 | 1x 2x 2x 2x |
| Level 8 | 14 | 300 | 1x 2x 2x |
| Level 9 | 15 | 300 | 1x 2x 2x 3x |
| Level 10 | 16 | 300 | 1x 4x 3x 4x |