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Boom Cannon16new
"The Boom Cannon fires devastating shots but takes a while to reload. Even the strongest armor is no match for the Boom!"

Boom Cannon1new
Boom Cannon2new
Boom Cannon3new
Boom Cannon4new
Boom Cannon5new
Level 1 Level 2 Level 3 Level 4 Level 5
Boom Cannon6new
Boom Cannon7new
Boom Cannon8new
Boom Cannon9new
Boom Cannon10new
Level 6 Level 7 Level 8 Level 9 Level 10
Boom Cannon11new
Boom Cannon12new
Boom Cannon13new
Boom Cannon15new
Boom Cannon16new
Level 11 Level 12 Level 13-14 Level 15 Level 16-19

Summary

  • The Boom Cannon is the sixth defense to be unlocked in the game.
  • The Boom Cannon is a long-range, single target defense that deals very high damage per shot, but with a slow rate of fire. This makes it particularly effective against troops with high health or a large unit size, such as Tanks or Heavies, but not as much against smaller units like Riflemen.

Offensive Strategy

  • When attacking Boom Cannons, be sure to either destroy them upfront with a Barrage or Artillery, or limit your time in range of them without them being shocked. For armies reliant on heavy units, Boom Cannons can potentially ruin an attack.
  • Conversely, they can be ignored if massed infantry is used, as their low fire rate greatly weakens their impact on armies centered around smaller units.
  • It is possible for Tanks to avoid the shots of a Boom Cannon on the opposite side of the Headquarters unless it is right up against the Headquarters. If there is even one space between the Boom Cannon and the Headquarters, your Tanks will be out of range on the opposite side if you maneuver them correctly.
    • However, if you have a large amount of Tanks, some will get pushed within range of the Boom Cannon.
  • Because the Boom Cannon targets the nearest troop, you can protect Tanks from Boom Cannons by using Riflemen or Heavies, which have shorter range and will likely walk ahead of the Tanks.
  • Critters can do a very good job distracting a Boom Cannon for a period of time especially if the Boom Cannon is protected by few other defenses; this can be an alternative to using Shock Bombs if they become too expensive.

Defensive Strategy

  • Once a total of 4 Boom Cannons are available, it is effective to place them in a diamond or square formation in your base well distanced so that it covers as much of your island as possible.
    • On the other hand, you may want to place them all close to your Headquarters to prevent attackers from avoiding certain Boom Cannons entirely simply by attacking the base from the opposite side.
  • Though they have relatively high health, it is recommended to place Boom Cannons behind your other buildings, as this allows them to take further advantage of their great range. Having them ahead of your other defenses will increase their vulnerability against smaller enemy units.

Upgrade Differences

  • Initially, the Boom Cannon is a gray structure with a stone base. It has brown plating, handwheels on both the side and the back, as well as a long barrel.
  • At level 2, the tip of the Boom Cannon's barrel becomes surrounded by a band, while its root gets one extra level of plating.
  • At level 3, the rod on top of the barrel becomes larger and two rods are seen behind the shield.
  • At level 4, the base increases in size.
  • At level 5, a wire is seen running along the base of the Boom Cannon.
  • At level 6, the Boom Cannon gains a thicker barrel and slightly darker colored plating and barrel. The shield increases in size. Vents are cut in on the side of the weapon. The general color scheme turns to a reddish-brown.
  • At level 7, metal reinforcements are seen on top of the concrete base.
  • At level 8, a white light is seen at the back of the Boom Cannon.
  • At level 9, the wheel on the back of the Boom Cannon is replaced by a hatch.
  • At level 10, the Boom Cannon gains a metal base, an even thicker barrel, tubes at the back, and darker colored plating. The back handwheel disappears. The white light is replaced by a green one and the shield becomes larger.
  • At level 11, the Boom Cannon gains a heavily armored base. Red metal plates are seen on it and an exhaust vent is added at the end of the tubes.
  • At level 12, the base gets more metal reinforcements.
  • At level 13, the metal rod on top of the barrel is replaced by a cylinder with vents cut in it.
  • At level 15, the Boom Cannon's barrel is much larger, and it gains steel ventilation on top of it, as well as a few layers of red metal plates between the steel ventilation plates and the barrel. A wire can be seen connecting the barrel to the back of the Boom Cannon, as well as a fiery glow within the barrel itself.
  • At level 16, more tubes appear at the back. The green light moves to the top and the loading hatch becomes larger.
  • At level 17, the base of the Boom Cannon is reinforced with wooden boards.
  • At level 18, the wooden base of the Boom Cannon is replaced with white stone.
  • At level 19, the white stone base of the Boom Cannon is replaced with iron.

Trivia

  • The Boom Cannon is based on the M-Gerät (Big Bertha), a German siege howitzer used in World War 1.
  • When it fires, the Boom Cannon's barrel seems to retract in a similar manner to the Cannon. However, the handwheel does not.
  • The Boom Cannon's shell appears to create an impact crater similar to that of Artillery, despite not inflicting splash damage.
  • While under the effects of the best Defensive Building Damage Masterpiece, 11 Guardians boosted with Power Powder, and four Mark III Damage Amplifiers, a Level 19 Boom Cannon will deal 57856 damage per shot.
  • The upgrade costs of the level 14, 16, 17 and 18 Boom Cannon are the same as the upgrade costs of the level 13, 14, 15 and 16 Rocket Launcher respectively, with the exception that the resources are swapped for all levels except the first.
  • The Boom Cannon has the most health of all the defenses.
  • The Boom Cannon has the most expensive max upgrade cost for a defensive building, costing 20,210,000 in total resources for the last level.

Statistics

HQ Level 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Number Available 0 0 0 0 0 0 0 0 0 0 0 1 1 2 2 2 3 3 3 4 5 5 5 6 6
Building Size
Size
Range
Range
Attack Speed
Shot
Damage Type
Damage Type
3x3 14 Tiles 4s Single
Level
Level
Health
Hitpoints
Damage Per Second
Damage
Damage Per Shot
Damage
Upgrade Cost Upgrade Time
Time
Instant
Diamonds
Headquarters Level Required
Headquarters
XP Gain
Xp
Wood
Wood
Stone
Stone
Iron
Iron
1 3,500 290 1,160 121,000 57,000 14,900 5h 409 12 24
2 3,850 319 1,276 141,000 66,000 17,300 6h 456 12 26
3 4,200 351 1,404 198,000 119,000 34,000 7h 609 13 28
4 4,700 386 1,544 255,000 153,000 44,000 8h 708 13 31
5 5,100 425 1,700 350,000 308,000 85,000 10h 975 14 40
6 5,600 467 1,868 610,000 460,000 168,000 12h 1,353 15 44
7 6,200 514 2,056 850,000 760,000 330,000 14h 1,818 16 50
8 6,800 565 2,260 950,000 850,000 370,000 16h 1,976 16 54
9 7,500 622 2,488 1,350,000 1,110,000 700,000 18h 2,555 17 58
10 8,300 684 2,736 1,650,000 1,500,000 990,000 20h 3,083 18 60
11 9,100 752 3,008 1,810,000 1,650,000 1,080,000 22h 3,296 18 61
12 10,000 827 3,308 2,040,000 1,980,000 1,560,000 1d 3,816 19 63
13 11,000 910 3,640 2,260,000 2,270,000 2,260,000 1d 6h 4,410 20 67
14 12,100 1,000 4,000 2,470,000 2,470,000 2,460,000 1d 12h 4,724 20 70
15 13,300 1,100 4,400 3,200,000 3,460,000 2,940,000 1d 14h 5,662 21 72
16 14,630 1,210 4,840 3,900,000 4,210,000 3,590,000 1d 16h 6,498 22 74
17 16,030 1,330 5,320 4,680,000 5,050,000 4,310,000 1d 18h 7,395 23 76
18 17,530 1,460 5,840 5,620,000 6,060,000 5,170,000 1d 20h 8,421 24 78
19 19,130 1,600 6,400 6,740,000 7,270,000 6,200,000 1d 22h 9,595 25 80

Warships

Rank
Level
Level
Level
Build Count
Build
Upgrade Tokens
Upgrade Token
Tech Level
Tech Point
1 8 2 N/A 5
2 10 3 89,000 10
3 12 4 173,500 15
4 14 4 210,000 20
5 16 4 243,500 25
Total 716,000 75
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