Eine neue Methode der Metallbearbeitung macht die Rüstungen deiner Truppen viel widerstandsfähiger. Führe die Studie "Armeeschutz I" durch, damit deine Armee auf dem Schlachtfeld weniger Schaden erleidet.
| Level | Nahrung | Holz | Eisen | Stein | Silber | Gold | Zeit | Anforderungen | Erhöhter Truppenschutz | Macht | Erfahrung des Helden |
| 1 | 10K | 10K | 7.5K | 10K | 5K | 795 | 04h 00m 00s | 1% | 250 | 20K | |
| 2 | 20K | 20K | 15K | 20K | 12.5K | 1.4K | 10h 00m 00s | Akademie 17 | 3% | 625 | 40K |
| 3 | 40K | 40K | 30K | 40K | 31.5K | 2.9K | 1d 03h 00m 00s | Akademie 17 | 7% | 1.6K | 60K |
| 4 | 80K | 80K | 60K | 80K | 78.5K | 5.85K | 2d 15h 00m 00s | Akademie 18 | 13% | 3.95K | 80K |
| 5 | 160K | 160K | 120K | 160K | 200K | 14K | 1w 00h 00m 00s | Akademie 18 | 21% | 9.8K | 100K |
| 6 | 320K | 320K | 240K | 320K | 490K | 31.5K | 2w 3d 00h 00m 00s | Akademie 18 | 31% | 24.5K | 120K |
| 7 | 640K | 640K | 480K | 640K | 1.25M | 66.5K | 5w 6d 00h 00m 00s | Akademie 19 | 46% | 61.5K | 140K |
| 8 | 1.3M | 1.3M | 960K | 1.3M | 3.1M | 140K | 14w 4d 00h 00m 00s | Akademie 19 | 66% | 155K | 160K |
| 9 | 2.6M | 2.6M | 1.95M | 2.6M | 7.65M | 295K | 36w 3d 00h 00m 00s | Akademie 20 | 91% | 385K | 180K |
| 10 | 5.15M | 5.15M | 3.85M | 5.15M | 19.5M | 605K | 90w 6d 00h 00m 00s> 1 Jahr(e) | Akademie 21 | 131% | 955K | 200K |
| 10.32M | 10.32M | 7.71M | 10.32M | 32.32M | 1.16M | 151w 5d 08h 00m 00s> 2 Jahr(e) | 131% | 1.6M | 1.1M |
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