Watchtower: levels, cost and upgrades

Watchtower hides intel from enemy scouts, and from level 5 counter-scouting triggers every single time. From level 9 five fields drop out of the enemy report, and neither figure grows further. The Expedition is entered through the tower. The building unlocks after Sanctuary level 8 and goes up to level 30. Only one can be built. Levels raise: anti-Scout Chance, anti-Scout Hidden Intel, scout Level.

Levels and cost

Reference levels of the building: what it gives, how much Might it brings and what the next step costs. Cost grows faster than the payoff: the last five levels take 79% of the total build time.

Level	Anti-Scout Chance	Anti-Scout Hidden Intel	Scout Level	Might	Cost	Time
1	20%	0	1	400	Grain 12, Timber 12	under a minute
5	1	1	1	2,800	Grain 155,100, Timber 155,100	1h 42m
10	1	5	2	9,500	Grain 1,036,000, Timber 1,036,000, Herb 125,600	8h 51m
15	1	5	7	22,900	Grain 5,103,000, Timber 5,103,000, Herb 642,900	19h 28m
20	1	5	12	56,300	Grain 42,230,000, Timber 42,230,000, Herb 5,683,000	4d 8h
25	1	5	17	133,400	Grain 205,100,000, Timber 205,100,000, Herb 26,360,000	19d 8h
30	1	5	22	311,100	Grain 1,052,000,000, Timber 1,052,000,000, Herb 130,200,000	89d 19h

Full upgrade

Taking the building from level 1 to 30 costs Grain 3,716,654,672, Timber 3,716,654,672, Herb 476,355,800. Pure build time without speed-ups: 350d 6h, that is, about 12 months.

How to use it

In pure build time the Watchtower yields only to the Sanctuary and the Walls: 350 days 6 hours against 398 days for both of them. Yet almost everything the tower is built for arrives within the first day.

At level 1 counter-scouting catches an enemy scout in one case out of five, from level 5 it works every time, and the number of fields hidden from the enemy report reaches five at level 9. That whole stretch costs about 27 hours of building and 3,052,672 each of Grain and Timber.

Beyond it twenty one levels raise nothing but the level of the city's own scout, from 2 to 22, and they take the remaining 349 days out of 350. That level grows by one step per tower level starting from the tenth. Counter-scouting does not grow across them, so the tower is kept at level 9 for as long as the city holds buildings with a quicker return. All thirty levels cost 3,716,654,672 Grain, the same amount of Timber and 476,355,800 Herb.

The Expedition is entered through the tower, yet the Expedition itself appears at Sanctuary level 16, eight levels later than the tower. Its 311,100 Might puts the Watchtower fifth among the city buildings, and that figure is collected by the same levels that add nothing to scouting.

Related pages

• All buildings
• Build calculator: an upgrade queue from building levels

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