Rock Solid II
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 | 121,084,100 | 0 | 25d 5h 9m |
| 1 → 2 | 0 | 0 | 121,084,100 | 0 | 25d 5h 9m |
| 2 → 3 | 0 | 0 | 133,192,600 | 0 | 27d 17h 39m |
| 3 → 4 | 0 | 0 | 133,192,600 | 0 | 27d 17h 39m |
| 4 → 5 | 0 | 0 | 143,848,000 | 0 | 29d 22h 55m |
Requirements by target level
Level 1
- (Tribe Defense IV level 5 OR Legion Defense IV level 5 OR Ranger Defense IV level 5)
- (Scholar Tower I level 30 OR Scholar Tower II level 30)
Level 2
- (Scholar Tower I level 30 OR Scholar Tower II level 30)
Level 3
- (Scholar Tower I level 30 OR Scholar Tower II level 30)
Level 4
- (Scholar Tower I level 30 OR Scholar Tower II level 30)
Level 5
- (Scholar Tower I level 30 OR Scholar Tower II level 30)
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.