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 | 4,953,400 | 0 | 4h 51m |
| 1 → 2 | 0 | 0 | 4,953,400 | 0 | 4h 51m |
| 2 → 3 | 0 | 0 | 6,934,700 | 0 | 6h 18m |
| 3 → 4 | 0 | 0 | 6,934,700 | 0 | 6h 18m |
| 4 → 5 | 0 | 0 | 9,708,600 | 0 | 8h 11m |
Requirements by target level
Level 1
- Ultimate Protection level 1
- (Scholar Tower I level 20 OR Scholar Tower II level 20)
Level 2
- (Scholar Tower I level 20 OR Scholar Tower II level 20)
Level 3
- (Scholar Tower I level 21 OR Scholar Tower II level 21)
Level 4
- (Scholar Tower I level 21 OR Scholar Tower II level 21)
Level 5
- (Scholar Tower I level 22 OR Scholar Tower II level 22)
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.