RESEARCH · MAX LEVEL 10
Iron Defense 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 | 28,193,900 | 28,193,900 | 84,581,700 | 1,102,200 | Scholar Tower I Lv. 30 | Ward Tent Expansion VI · Level 1; Healing Cost I · Level 1 |
| 2 | 28,193,900 | 28,193,900 | 84,581,700 | 1,102,200 | Scholar Tower I Lv. 30 | |
| 3 | 31,013,300 | 31,013,300 | 93,039,900 | 1,322,640 | Scholar Tower I Lv. 30 | |
| 4 | 31,013,300 | 31,013,300 | 93,039,900 | 1,322,640 | Scholar Tower I Lv. 30 | |
| 5 | 34,114,600 | 34,114,600 | 102,343,900 | 1,454,880 | Scholar Tower I Lv. 30 | |
| 6 | 34,114,600 | 34,114,600 | 102,343,900 | 1,454,880 | Scholar Tower I Lv. 30 | |
| 7 | 37,526,100 | 37,526,100 | 112,578,200 | 1,600,380 | Scholar Tower I Lv. 30 | |
| 8 | 37,526,100 | 37,526,100 | 112,578,200 | 1,600,380 | Scholar Tower I Lv. 30 | |
| 9 | 41,278,700 | 41,278,700 | 123,836,100 | 1,760,400 | Scholar Tower I Lv. 30 | |
| 10 | 41,278,700 | 41,278,700 | 123,836,100 | 1,760,400 | Scholar Tower I Lv. 30 |