The Arena is needed to conduct Championships, during which foreign and other Lords' troops attack the Order Citadel. Only the Master and Counselors can announce a Championship. Upgrading the Arena increases the power of the foreign troops that attack the Citadel.
| Level | Time | Planks | Marble | Cast Iron | Rations | Tokens | Drafts | Requirements | Order Citadel Power |
| 1 | 2w 1d 00h 00m 00s | 15 000 | 15 000 | 5 000 | 12 000 | 3 000 | 500 | Town Hall 4 | 190 000 000 |
| 2 | 3w 1d 00h 00m 00s | 29 500 | 29 500 | 9 800 | 23 500 | 5 900 | 650 | 260 000 000 | |
| 3 | 4w 5d 00h 00m 00s | 59 000 | 59 000 | 20 000 | 47 000 | 12 000 | 825 | 365 000 000 | |
| 4 | 14w 4d 00h 00m 00s | 255 000 | 255 000 | 85 000 | 205 000 | 51 000 | 975 | 510 000 000 | |
| 24w 4d 00h 00m 00s | 358 500 | 358 500 | 119 800 | 287 500 | 71 900 | 2 950 | 1 325 000 000 |
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