RESEARCH · MAX LEVEL 5
Rock Solid II
Compare required levels and costs before progressing.
Level costs & requirements
Each row describes the target level. Prerequisite material costs are separate.
| Target level | Wood | Food | Coins | Base time (seconds) | Required buildings | Research prerequisites |
|---|---|---|---|---|---|---|
| 1 | 0 | 0 | 121,084,100 | 2,178,540 | Scholar Tower I Lv. 30 | Tribe Defense IV · Level 5 / Legion Defense IV · Level 5 / Ranger Defense IV · Level 5 |
| 2 | 0 | 0 | 121,084,100 | 2,178,540 | Scholar Tower I Lv. 30 | |
| 3 | 0 | 0 | 133,192,600 | 2,396,340 | Scholar Tower I Lv. 30 | |
| 4 | 0 | 0 | 133,192,600 | 2,396,340 | Scholar Tower I Lv. 30 | |
| 5 | 0 | 0 | 143,848,000 | 2,588,100 | Scholar Tower I Lv. 30 |