Гром доспехов и блеск клинков — вот что нужно истинному воителю! С этим Исследованием повысится скорость производства Железа.
| Niveau | Nourriture | Bois | Fer | Pierre | Argent | Or | Temporels | Conditions | Production de Fer augmentée | Pouvoir | Expérience du Héros |
| 1 | 200 | 250 | 15 | 150 | 1.6K | 520 | 02h 00m 00s | 1% | 80 | 6K | |
| 2 | 400 | 500 | 25 | 300 | 4K | 665 | 03h 30m 00s | Académie 2 | 3% | 200 | 12K |
| 3 | 800 | 1K | 50 | 600 | 10K | 970 | 07h 00m 00s | Académie 4 | 6% | 500 | 18K |
| 4 | 1.6K | 2K | 100 | 1.2K | 25K | 1.55K | 14h 00m 00s | Académie 6 | 10% | 1.25K | 24K |
| 5 | 3.2K | 4K | 200 | 2.4K | 62.5K | 2.5K | 1d 03h 00m 00s | Académie 8 | 15% | 3.15K | 30K |
| 6 | 6.4K | 8K | 400 | 4.8K | 160K | 4.4K | 2d 06h 00m 00s | Académie 11 | 22% | 7.85K | 36K |
| 7 | 13K | 16K | 800 | 9.6K | 395K | 7.95K | 4d 12h 00m 00s | Académie 14 | 31% | 20K | 42K |
| 8 | 26K | 32K | 1.6K | 19.5K | 980K | 15K | 1w 2d 00h 00m 00s | Académie 16 | 43% | 49K | 48K |
| 9 | 51.5K | 64K | 3.2K | 38.5K | 2.45M | 28K | 2w 4d 00h 00m 00s | Académie 17 | 58% | 125K | 54K |
| 10 | 105K | 130K | 6.4K | 77K | 6.15M | 52.5K | 5w 1d 00h 00m 00s | 78% | 310K | 60K | |
| 208.1K | 257.75K | 12.79K | 154.05K | 10.24M | 114.06K | 10w 1d 23h 30m 00s | 78% | 517.03K | 330K |
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