The enemy that has invaded your lands doesn’t yet know what a huge mistake they have made! Let your Hero learn the ancient art of overcoming fear that makes it possible to battle an initially superior enemy. This Knowledge allows you to attack level 4 Invaders.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Invaders (Level IV) Unlocked | Influence | Hero’s Experience |
| 1 | 1M | 500K | 500K | 500K | 1M | 90K | 7w 00h 00m 00s | ✓ | 37.5K | 21K |
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