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A siege engine is a device designed to break or circumvent city walls and other fortifications during siege warfare. The earliest engine was the battering ram, developed by the Assyrians, followed by the catapult in ancient Greece.

Building Siege Workshop 1 5
Unlocked at: City Hall Lv.5

The Siege Workshop is a building which allows for the training and upgrade of siege units. It is the fourth troop training building unlocked, along with the Barracks (infantry), Archery Range (archer units), and Stable (cavalry units).

Five tiers of siege units are available to train once unlocked through research, each with increasing time and resource requirements. Existing units can be upgraded by one tier at a time, though at greater overall resource cost than training the higher tier directly.

Building Requirements

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The build times listed below assume no building bonuses are active, such as those from technologies, alliance technologies, or VIP perks. While we cannot predict your build time, it will likely be less.
Level Requirements Siege
Training
Capacity
Cost Time Power
1 City Hall Lv.5 20 Resource icon food 400
Resource icon wood 500
10s 5
2 Barracks Lv.2
Archery Range Lv.2
Stable Lv.2
50 Resource icon food 800
Resource icon wood 1.0K
1m 30s 10
3 Barracks Lv.3
Archery Range Lv.3
Stable Lv.3
100 Resource icon food 1.5K
Resource icon wood 2.0K
4m 26
4 Barracks Lv.4
Archery Range Lv.4
Stable Lv.4
150 Resource icon food 2.8K
Resource icon wood 3.8K
10m 63
5 Barracks Lv.5
Archery Range Lv.5
Stable Lv.5
200 Resource icon food 5.0K
Resource icon wood 6.8K
16m 40s 126
6 Barracks Lv.6
Archery Range Lv.6
Stable Lv.6
250 Resource icon food 8.5K
Resource icon wood 11.5K
Resource icon stone 5.7K
45m 50s 293
7 Barracks Lv.7
Archery Range Lv.7
Stable Lv.7
300 Resource icon food 12.8K
Resource icon wood 17.3K
Resource icon stone 9.0K
1h 32m 600
8 Barracks Lv.8
Archery Range Lv.8
Stable Lv.8
350 Resource icon food 19.3K
Resource icon wood 26.0K
Resource icon stone 14.4K
6h 7m 1,173
9 Barracks Lv.9
Archery Range Lv.9
Stable Lv.9
400 Resource icon food 19.3K
Resource icon wood 26.0K
Resource icon stone 14.4K
6h 7m 2,258
10 Barracks Lv.10
Archery Range Lv.10
Stable Lv.10
450 Resource icon food 43.5K
Resource icon wood 58.5K
Resource icon stone 36.9K
12h 13m 4,332
11 Barracks Lv.11
Archery Range Lv.11
Stable Lv.11
500 Resource icon food 67.5K
Resource icon wood 90.0K
Resource icon stone 57.5K
14h 40m 6,931
12 Barracks Lv.12
Archery Range Lv.12
Stable Lv.12
550 Resource icon food 102.5K
Resource icon wood 135.0K
Resource icon stone 87.5K
17h 36m 10,202
13 Barracks Lv.13
Archery Range Lv.13
Stable Lv.13
600 Resource icon food 102.5K
Resource icon wood 135.0K
Resource icon stone 87.5K
21h 7m 14,355
14 Barracks Lv.14
Archery Range Lv.14
Stable Lv.14
700 Resource icon food 232.5K
Resource icon wood 305.0K
Resource icon stone 200.0K
1d 1h 19,679
15 Barracks Lv.15
Archery Range Lv.15
Stable Lv.15
800 Resource icon food 350.0K
Resource icon wood 457.5K
Resource icon stone 300.0K
1d 12h 26,573
16 Barracks Lv.16
Archery Range Lv.16
Stable Lv.16
900 Resource icon food 525.0K
Resource icon wood 687.5K
Resource icon stone 450.0K
1d 12h 35,603
17 Barracks Lv.17
Archery Range Lv.17
Stable Lv.17
1,000 Resource icon food 787.5K
Resource icon wood 1.0M
Resource icon stone 675.0K
1d 20h 47,574
18 Barracks Lv.18
Archery Range Lv.18
Stable Lv.18
1,100 Resource icon food 1.2M
Resource icon wood 1.6M
Resource icon stone 1.0M
2d 5h 63,716
19 Barracks Lv.19
Archery Range Lv.19
Stable Lv.19
1,200 Resource icon food 1.8M
Resource icon wood 2.3M
Resource icon stone 1.6M
3d 4h 85,697
20 Barracks Lv.20
Archery Range Lv.20
Stable Lv.20
1,300 Resource icon food 2.7M
Resource icon wood 3.5M
Resource icon stone 2.3M
3d 4h 115,969
21 Barracks Lv.21
Archery Range Lv.21
Stable Lv.21
1,400 Resource icon food 4.1M
Resource icon wood 5.3M
Resource icon stone 3.5M
3d 19h 158,145
22 Barracks Lv.22
Archery Range Lv.22
Stable Lv.22
1,500 Resource icon food 6.1M
Resource icon wood 7.9M
Resource icon stone 5.3M
4d 22h 218,794
23 Barracks Lv.23
Archery Range Lv.23
Stable Lv.23
1,600 Resource icon food 9.1M
Resource icon wood 11.8M
Resource icon stone 7.9M
6d 21h 308,118
24 Barracks Lv.24
Archery Range Lv.24
Stable Lv.24
1,700 Resource icon food 13.8M
Resource icon wood 17.8M
Resource icon stone 12.0M
10d 8h 442,817
25 Barracks Lv.25
Archery Range Lv.25
Stable Lv.25
2,000 0 0 716,764