In battle, spearmen are valued for their reaction speed and dexterity. Extract of Sitendra and Ginkogo seeds will increase their speed of movement and their awareness. This upgrade will increase your Impalers' offense.
| Level | Food | Lumber | Iron | Silver | Gold | Time | Requirements | In battle, spearmen are valued for their reaction speed and dexterity. Extract of Sitendra and Ginkogo seeds will increase their speed of movement and their awareness. This upgrade will increase your Impalers' offense. | Power | Hero's Experience |
| 1 | 3.95M | 2.65M | 3.3M | 6.6M | 9.75K | 01h 30m 00s | 1% | 1K | 50K | |
| 2 | 4.1M | 2.75M | 3.4M | 6.8M | 13.5K | 02h 30m 00s | Alchemical Laboratory 13 | 7.5% | 54K | 78K |
| 3 | 4.4M | 2.95M | 3.7M | 7.35M | 17.5K | 04h 00m 00s | Alchemical Laboratory 14 | 15% | 115K | 110K |
| 4 | 5.5M | 3.65M | 4.6M | 9.15M | 22.5K | 10h 00m 00s | 23% | 185K | 150K | |
| 5 | 8.2M | 5.45M | 6.85M | 14M | 29.5K | 1d 03h 00m 00s | Alchemical Laboratory 16 | 32.5% | 285K | 205K |
| 6 | 14M | 9.2M | 11.5M | 23M | 40.5K | 2d 12h 00m 00s | Alchemical Laboratory 16 | 44.5% | 445K | 285K |
| 7 | 24M | 16M | 20M | 40M | 57.5K | 4d 21h 00m 00s | Alchemical Laboratory 17 | 58.5% | 690K | 415K |
| 8 | 40.5M | 27M | 34M | 67.5M | 83.5K | 1w 2d 00h 00m 00s | 75.5% | 1.1M | 615K | |
| 9 | 66M | 44M | 55M | 110M | 125K | 2w 1d 00h 00m 00s | Alchemical Laboratory 19 | 95.5% | 1.6M | 900K |
| 10 | 105M | 68.5M | 85.5M | 175M | 175K | 3w 3d 00h 00m 00s | 120% | 2.4M | 1.3M | |
| 275.65M | 182.15M | 227.85M | 459.4M | 574.25K | 8w 1d 06h 00m 00s | 120% | 6.88M | 4.11M |
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