Attack Boost
Base reference costs and prerequisites. Supported through level 5; each row shows an explicit upgrade transition.
Plan this upgradeUpgrade costs
| From → To | Wood | Food | Coins | Medals | Base work |
|---|---|---|---|---|---|
| 0 → 1 | 0 | 0 | 2,063,900 | 0 | 2h 52m |
| 1 → 2 | 0 | 0 | 2,063,900 | 0 | 2h 52m |
| 2 → 3 | 0 | 0 | 3,302,300 | 0 | 3h 44m |
| 3 → 4 | 0 | 0 | 3,302,300 | 0 | 3h 44m |
| 4 → 5 | 0 | 0 | 4,953,400 | 0 | 4h 51m |
Requirements by target level
Level 1
- Basic Cargo level 5
- (Scholar Tower I level 14 OR Scholar Tower II level 14)
Level 2
- (Scholar Tower I level 14 OR Scholar Tower II level 14)
Level 3
- (Scholar Tower I level 15 OR Scholar Tower II level 15)
Level 4
- (Scholar Tower I level 15 OR Scholar Tower II level 15)
Level 5
- (Scholar Tower I level 16 OR Scholar Tower II level 16)
Reference research rows describe the level being reached. Prerequisites are expanded by the planner, including shared requirements once and all required building gates.
Reference snapshot: 24 October 2026. Community table agreement does not mean every value was independently verified in-game. View sources and uncertainty.