To find out how best to host allied warriors in your Town, invite a foreign craftsman to renovate the Inn. This Study will increase the number of reinforcement troops that your Town can host.
| Level | Planks | Marble | Tokens | Drafts | Time | Requirements | Reinforcement Troops | Power |
| 1 | 350 | 300 | 50 | 100 | 1w 12h 00m 00s | 1 | 9M | |
| 2 | 480 | 410 | 70 | 130 | 1w 3d 00h 00m 00s | 2 | 9.1M | |
| 3 | 665 | 570 | 95 | 170 | 1w 6d 00h 00m 00s | 2 | 9.2M | |
| 4 | 945 | 810 | 135 | 220 | 2w 4d 00h 00m 00s | 3 | 9.3M | |
| 5 | 1.4K | 1.2K | 200 | 290 | 3w 5d 00h 00m 00s | 4 | 9.4M | |
| 6 | 2.05K | 1.75K | 295 | 390 | 5w 4d 00h 00m 00s | 5 | 9.45M | |
| 7 | 3.15K | 2.7K | 445 | 525 | 8w 5d 00h 00m 00s | 7 | 9.55M | |
| 8 | 4.85K | 4.15K | 690 | 720 | 14w 1d 00h 00m 00s | 10 | 9.65M | |
| 9 | 7.7K | 6.6K | 1.1K | 990 | 24w 00h 00m 00s | 14 | 9.75M | |
| 10 | 13K | 11K | 1.8K | 1 400 | 42w 3d 00h 00m 00s | 20 | 9.85M | |
| 34.59K | 29.49K | 4.88K | 4.94K | 105w 3d 12h 00m 00s> 2 Year(s) | 20 | 94.25M |
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