The Watchtower is a build that detects troops approaching the player's turf or camps. The Watchtower is a fixed building, meaning it's location is set from the start of the game and cannot be changed by the player.
A border will be created around the screen depending on what sort of troops are approaching. A red border can be seen when enemy troops or scouts are approaching a turf/camp, a yellow border when supply troops are approaching the turf and a blue border when allied troops are approaching the turf.
Upgrading the Watchtower will unlock new abilities for the watchtower. At Level 25, it gives the player a Fortify button which allows them to activate defense boosts and lower the enemy's power as well as giving the enemy a reduced troop ATK of 10%.
Upgrade Results 
Edit
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Level | Results | Might
Bonus | Food
Cost | Stone
Cost | Timber
Cost | Ore
Cost | Required | Orig.
Time |
|---|---|---|---|---|---|---|---|---|
|
1 | Alerts you to incoming armies! Reveals mission and objective of enemy Armies approaching your Turf or Camps. | 15 | ||||||
| 2 | 30 | 412 | 412 | 330 | 495 | Barracks: Lv.2 | 00:02:30 | |
| 3 | 45 | 618 | 618 | 495 | 742 | Barracks: Lv.3 | 00:05:00 | |
|
4 | Reveals the player name and coordinates of enemy Armies approaching your Turf or Camps. | 63 | 928 | 928 | 742 | 1,113 | Barracks: Lv. 4 | 00:10:00 |
| 5 | 88 | 1,392 | 1,392 | 1,113 | 1,670 | Barracks: Lv. 5 | 00:20:00 | |
| 6 | 123 | 2,088 | 2,088 | 1,670 | 2,505 | Barracks: Lv.6 | 00:40:00 | |
| 7 | Reveals remaining travel time of enemy Armies approaching your Turf or Camps. | 173 | 3,132 | 3,132 | 2,505 | 3,758 | Barracks: Lv.7 | 01:20:00 |
| 8 | 242 | 4,698 | 4,698 | 3,758 | 5,638 | Barracks: Lv.8 | 02:40:00 | |
| 9 | 339 | 7,047 | 7,047 | 5,638 | 8,457 | Barracks: L.9 | 04:48:00 | |
| 10 | Reveals the Guild of enemy Armies approaching your Turf or Camps. | 474 | 10,571 | 10,571 | 8,457 | 12,686 | Barracks: Lv.10 | 07:40:48 |
| 11 | 664 | 15,857 | 15,857 | 12,686 | 19,029 | Barracks: Lv.11 | 09:59:03 | |
| 12 | 930 | 23,786 | 23,786 | 19,029 | 28,544 | Barracks 12 | 11:28:54 | |
| 13 | Reveals the estimated size of enemy Armies approaching your Turf or Camps and the number of Heroes in them. | 1,302 | 35,680 | 35,680 | 28,544 | 42,816 | Barracks 13 | 13:12:14 |
| 14 | 1,822 | 53,520 | 53,520 | 42,816 | 64,224 | Barracks: lvl 14 | 15:11:04 | |
| 15 | Indicates if an approaching enemy Army is led by the Leader and reveals its composition. | 2,551 | 80,280 | 80,280 | 64,224 | 96,336 | Barracks 15 | 17:27:44 |
| 16 | 3,572 | 120,420 | 120,420 | 96,336 | 144,504 | Barracks: Lv. 16 | 20:04:54 | |
| 17 | Reveals the estimated size of each squad and soldier class of enemy armies approaching your turf, camps or garrisoned troops. | 5,000 | 180,631 | 180,631 | 144,504 | 216,757 | Barracks 17 | 23:05:37 |
| 18 | . | 7,001 | 270,946 | 270,946 | 216,757 | 325,136 | Barracks: Lv.18 | 1d 02:33:28 |
| 19 | Reveals the Hero lineup of enemy Armies approaching your Turf or Camps. | 9,801 | 406,420 | 406,420 | 325,136 | 487,704 | Barracks: Lv.19 | 1d 06:32:29 |
| 20 | N/A | 13,721 | 609,630 | 609,630 | 487,704 | 731,556 | Barracks: Lv.20 | 1d 11:07:21 |
| 21 | Reveals the actual size of each squad for enemy armies approaching your turf, camps or garrisoned troops. | 19,209 | 914,445 | 914,445 | 731,556 | 1,097,334 | Barracks: Lv. 21 | 1d 21:39:34 |
| 22 | . | 26,894 | 1,371,668 | 1,371,668 | 1,097,334 | 1,646,002 | Barracks: Lv. 22 | 3d 1h 3m |
| 23 | Reveals the Rank and Grade of Heroes in enemy Armies Approaching your Turf or Camps. | 37,651 | 2,057,502 | 2,057,502 | 1,646,002 | 2,469,003 | Barracks: Lv. 23 | 5d 11:29:55 |
| 24 | 52,711 | 3,086,253 | 3,086,253 | 2,469,003 | 3,703,504 | Barracks: Lv. 24 | 9d 20:41:51 | |
| 25 | Unlocks [Fortify] button! Quickly bolster your defenses for an impeding Siege Battle and lower your enemies' power! | 89,608 | 6,172,507 | 6,172,507 | 4,938,006 | 7,407,009 | Barracks: Lv.25
Gold Hammer | 34d 12:26:28 |
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