The Watchtower in Rise of Kingdoms is an excellent defense structure that will allow you to deal more damage to the enemy. ROK Watchtower has health. The health of the watchtower is not great, so if your city gets attacked by Max Rally, your watchtower will be destroyed very fast.
To upgrade the watchtower, you will need a lot of Arrows of Resistance. Arrows of Resistance can be obtained by farming barbarians, attending Lohar events, and spending gems. I would not recommend that you spend gems on arrows of resistance. How to spend gems in Rise of Kingdoms, you can see in our guide about spending gems. Upgrading Watchtower to level 25 is needed to unlock Tier 5 units.
Upgrading Requirements
| Watchtower Level | Requirements | Attack | Health | Cost | Time | Power |
|---|---|---|---|---|---|---|
| 1 | None | 1,000 | 1,000 | None | None | 5 |
| 2 | Wall Lv.2 | 1,500 | 1,500 | Food 800 Wood 800 Arrow of Resistance | 30s | 11 |
| 3 | Wall Lv.3 | 2,000 | 2,000 | Food 1.5K Wood 1.5K Arrow of Resistance x5 | 1m 40s | 21 |
| 4 | Wall Lv.4 | 3,000 | 3,000 | Food 2.8K Wood 2.8K Arrow of Resistance x8 | 5m | 44 |
| 5 | Wall Lv.5 | 4,000 | 4,000 | Food 5.0K Wood 5.0K Arrow of Resistance x15 | 15m | 100 |
| 6 | Wall Lv.6 | 5,000 | 5,000 | Food 8.5K Wood 8.5K Stone 1.3K Arrow of Resistance x24 | 35m | 221 |
| 7 | Wall Lv.7 | 6,000 | 6,000 | Food 12.8K Wood 12.8K Stone 2.0K Arrow of Resistance x30 | 1h 10m | 446 |
| 8 | Wall Lv.8 | 16,000 | 8,000 | Food 19.3K Wood 19.3K Stone 3.2K Arrow of Resistance x40 | 2h 20m | 868 |
| 9 | Wall Lv.9 | 20,000 | 10,000 | Food 29.0K Wood 29.0K Stone 5.2K Arrow of Resistance x50 | 4h 40m | 1,671 |
| 10 | Wall Lv.10 | 24,000 | 12,000 | Food 43.5K Wood 43.5K Stone 8.2K Arrow of Resistance x60 | 9h 20m | 3,213 |
| 11 | Wall Lv.11 | 28,000 | 14,000 | Food 67.5K Wood 67.5K Stone 12.5K Arrow of Resistance x80 | 11h 12m | 5,133 |
| 12 | Wall Lv.12 | 32,000 | 16,000 | Food 102.5K Wood 102.5K Stone 20.0K Arrow of Resistance x100 | 13h 26m | 7,538 |
| 13 | Wall Lv.13 | 36,000 | 18,000 | Food 155.0K Wood 155.0K Stone 30.0K Arrow of Resistance x125 | 16h 8m | 10,570 |
| 14 | Wall Lv.14 | 40,000 | 20,000 | Food 232.5K Wood 232.5K Stone 45.0K Arrow of Resistance x150 | 19h 21m | 14,421 |
| 15 | Wall Lv.15 | 66,000 | 22,000 | Food 350.0K Wood 350.0K Stone 67.5K Arrow of Resistance x300 | 23h 13m | 19,367 |
| 16 | Wall Lv.16 | 72,000 | 24,000 | Food 525.0K Wood 525.0K Stone 102.5K Arrow of Resistance x500 | 1d 4h | 25,787 |
| 17 | Wall Lv.17 | 78,000 | 26,000 | Food 787.5K Wood 787.5K Stone 155.0K Arrow of Resistance x700 | 1d 9h | 34,217 |
| 18 | Wall Lv.18 | 84,000 | 28,000 | Food 1.2M Wood 1.2M Stone 250.0K Arrow of Resistance x900 | 1d 16h | 45,545 |
| 19 | Wall Lv.19 | 90,000 | 30,000 | Food 1.8M Wood 1.8M Stone 375.0K Arrow of Resistance x1200 | 2d | 60,804 |
| 20 | Wall Lv.20 | 96,000 | 32,000 | Food 2.7M Wood 2.7M Stone 575.0K Arrow of Resistance x1500 | 2d 10h | 81 650 |
| 21 | Wall Lv.21 | 136,000 | 34,000 | Food 4.1M Wood 4.1M Stone 875.0K Arrow of Resistance x1800 | 2d 21h | 110 460 |
| 22 | Wall Lv.22 | 144,000 | 36,000 | Food 6.1M Wood 6.1M Stone 1.3M Arrow of Resistance x2000 | 3d 18h | 151,716 |
| 23 | Wall Lv.23 | 152,000 | 38,000 | Food 9.1M Wood 9.1M Stone 2.0M Arrow of Resistance x2500 | 5d 6h | 212,389 |
| 24 | Wall Lv.24 | 160,000 | 40,000 | Food 13.8M Wood 13.8M Stone 3.0M Arrow of Resistance x3000 | 7d 21h | 303,649 |
| 25 | Storehouse 25 Wall 25 | 500,000 | 50,000 | Food 20.8M Wood 20.8M Stone 4.5M Arrow of Resistance x5000 | 12d 4h | 495 562 |