Training newly recruited warriors can be quite costly! But Knowledge has been revealed to wise Jarls! By upgrading, you can substantially cut the training cost of irrepressible Raiders!
| Level | Food | Iron | Stone | Silver | Gold | Time | Requirements | Reduced Raider Training Cost | Influence | Hero’s Experience |
| 1 | 400 | 260 | 260 | 120 | 90 | 00h 10m 00s | 1 | 15 | 10.4K | |
| 2 | 880 | 575 | 575 | 265 | 195 | 00h 30m 00s | 1 | 30 | 20.8K | |
| 3 | 1.95K | 1.3K | 1.3K | 585 | 365 | 01h 30m 00s | 2 | 60 | 31.2K | |
| 4 | 4.3K | 2.8K | 2.8K | 1.3K | 560 | 03h 30m 00s | 2 | 130 | 41.6K | |
| 5 | 9.4K | 6.1K | 6.1K | 2.85K | 960 | 08h 30m 00s | 3 | 285 | 52K | |
| 6 | 21K | 13.5K | 13.5K | 6.2K | 2.1K | 1d 00h 00m 00s | 4 | 620 | 62.4K | |
| 7 | 45.5K | 29.5K | 29.5K | 14K | 4.55K | 2d 12h 00m 00s | 6 | 1.4K | 72.8K | |
| 8 | 100K | 65K | 65K | 30K | 12K | 1w 00h 00m 00s | 9 | 3K | 83.2K | |
| 9 | 220K | 145K | 145K | 66K | 26.5K | 2w 3d 00h 00m 00s | 15 | 6.6K | 93.6K | |
| 10 | 485K | 315K | 315K | 145K | 65.5K | 6w 3d 00h 00m 00s | 40 | 14.5K | 104K | |
| 888.43K | 579.04K | 579.04K | 266.32K | 112.82K | 10w 3d 02h 10m 00s | 40 | 26.64K | 572K |
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