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For the Clan Capital variant, see Giant Cannon/Clan Capital.
Giant Cannon10
"Nothing gets in the way of the Giant Cannon. Its mammoth-sized cannon balls push past anything and keeps going and going and going..."

Giant Cannon1
Level 1
Giant Cannon2
Level 2
Giant Cannon3
Level 3
Giant Cannon4
Level 4
Giant Cannon5
Level 5
Giant Cannon6
Level 6
Giant Cannon7
Level 7
Giant Cannon8
Level 8
Giant Cannon9
Level 9
Giant Cannon10
Level 10


  • The Giant Cannon is a defense that shoots a large cannonball with a piercing effect, able to hit multiple troops and knocks them back. The cannonball slows down the further it travels. It is unlocked at Builder Hall level 7.
  • It has a low fire rate but deals moderate damage per hit.


Defensive Strategy

  • The Giant Cannon has a lock-on range of 9.5 tiles but the fired projectile can travel 48 tiles - enough to pass the boundaries of the Builder Base.
  • You can put a Giant Cannon behind other buildings to assist their defense - it can hit all ground units in a row. This is especially true for strategies which utilize Raged Barbarians where a player attempts swarms their army into the center of the base.
  • Putting the Giant Cannon near the Builder Hall makes Troops take a longer time to attack it due to the repel distance.
  • The Giant Cannon can deal damage to both a tank and their support troops as long as they are lined up.

Offensive Strategy

  • Try to spread out your troops so they are not in line with the Giant Cannon; otherwise, the Giant Cannon will be able to hit all of them at once.
  • Use the slow fire rate to your advantage by baiting it to shoot a few troops then swarming it with other troops before it can shoot again. Only use this if you don't have tanks to take it out and if the Giant Cannon is not guarded by a Crusher.
  • The Boxer Giant and Battle Machine are good tanks against a Giant Cannon. They both have high hitpoints and will be able to survive many hits from the Giant Cannon.

Upgrade Differences

  • The Giant Cannon undergo significant visual changes at levels 4, 5, 7, and 8.
    • When initially constructed, the Giant Cannon appears to be a cannon on a wooden platform strapped with ropes.
    • At level 2, the ropes disappear. The Cannon also looks more sturdy.
    • At level 3, pieces of metal are added to the back of the Cannon.
    • At level 4, the circular rims on the Cannon turn bronze, along with the pieces of metal added at level 3.
    • At level 5, the Cannon turns bigger and is shaped like an octagon. Also, the added metal disappears.
    • At level 6, the front and back of the Cannon gain bronze outlines.
    • At level 7, the main body of the Cannon turns darker, along with the inside.
    • At level 8, the bronze rings at the front and back get wider.
    • At level 9, a black layer has been added and it has been reinforced by metallic bars. It also gets gold piecing on the legs.
    • At level 10, the black layer and bars are replaced with bronze and reinforced with layers of bronze that have been fitted with bolts. A black metal spike with bronze rims is added to the bottom of the Cannon.


Number Available Builder Hall Level
1 2 3 4 5 6 7 8 9 10
Total 0 0 0 0 0 0 1 1 1 1
Size Size
Damage per Second
Damage per Shot
Build Cost
Builder Gold
Build Time
Experience Gained
Builder Hall Level Required
Builder Hall
1 41 205 700 2,000,000 1d 293 7
2 45 225 800 2,100,000 2d 415 7
3 49 245 950 2,200,000 3d 509 7
4 54 270 1,100 2,300,000 4d 587 7
5 60 300 1,300 2,400,000 5d 657 7
6 66 330 1,500 2,500,000 6d 720 7
7 72 360 1,700 2,700,000 8d 831 7
8 79 395 1,900 3,800,000 10d 929 8
9 87 435 2,150 4,700,000 11d 974 9
10 96 480 2,400 5,700,000 12d 1,018 10
Range Attack Speed Damage Type Unit Type Targeted Favorite Target
9.5 5 seconds Area Splash Ground Any

Icon Descriptions

Icon InfoTapping this icon displays information about the Giant Cannon, such as Level, Damage Per Second, Hitpoints, Range, Damage Type and Targets.
Icon UpgradeTapping this icon begins upgrading the Giant Cannon to the next level, if you have enough resources and a free Master Builder or O.T.T.O. When the Giant Cannon is at maximum level, this icon is not shown.
Icon HoBTapping this icon instantly upgrades the Giant Cannon to the next level, at the cost of one Hammer of Building if you have one. When the Giant Cannon is at maximum level, or the Builder Hall requirements for the next level are not met, this icon is not shown.
Icon FinishNowTapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of the displayed number of Gems.
Icon FinishNowBoBTapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of one Book of Building. This icon is only shown if you have at least one Book of Building.
Icon FinishNowBoETapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of one Book of Everything. This icon is only shown if you have at least one Book of Everything but do not have a Book of Building.
Icon CancelTapping this icon, which is displayed only while an upgrade is in progress, cancels the current upgrade and refunds half of the upgrade cost.


  • Its cannonball mechanics could be inspired by a Clash Royale card, The Log.
  • Any troop that would be destroyed in one shot by the Giant Cannon will be sent flying off the battlefield instead, in a similar fashion to the Spring Trap and the Super Archer.
  • The Giant Cannon was added on 29/09/17, along with Builder Hall 7.
  • If the Giant Cannon destroys the Battle Machine near a Wall, the Master Builder will remain on the Wall frozen in a hung position with his arms down. The battle will not end automatically even if all other troops are killed. The Master Builder will remain in the frozen position until time runs out. In battle replay, the Master Builder can be clicked like any other troop despite the Master Builder not being considered a troop itself.
  • The description of the Giant Cannon used to have a grammatical error, saying "It's mammoth-sized cannon balls..." instead of "Its mammoth-sized cannon balls...". It is unknown when this was fixed.
  • There used to be a bug where the Giant Cannon could do massive damage to or even instantly destroy the Battle Machine with one hit, due to the cannon's fired projectile colliding with the Battle Machine's sprite multiple times within a short session.
Builder Base Buildings
Defensive Buildings CannonDouble CannonArcher TowerHidden TeslaFirecrackersCrusherGuard PostAir BombsMulti MortarO.T.T.O's Outpost (Zappy) • RoasterGiant CannonMega TeslaLava LauncherX-BowWalls
Traps: Push TrapSpring TrapMineMega Mine
Resource Buildings Builder Hall (Magic Items) • Gold MineElixir CollectorGold StorageElixir StorageGem MineB.O.B Control
Army Buildings Builder BarracksArmy CampStar LaboratoryBattle Machine AltarReinforcement CampHealing HutBattle Copter Altar
Other Buildings BoatDecorationsObstaclesClock TowerElixir Cart