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Double Cannon10

"Double cannons, double shots per cannon, It's a double-double dose of trouble!"


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

Summary

  • The Double Cannon is a defensive building in the Builder Base that fires rapid bursts of cannonballs at ground troops, with four shots per volley. It is unlocked at Builder Hall level 2.
  • The Master Builder can gear up a Cannon in the Home Village which will allow the Cannon to shoot similarly to the Double Cannon. This requires the Cannon to be at least level 7 in the Home Village, which is unlocked at Town Hall 6, and a level 4 Double Cannon in the Builder Base, which is unlocked at Builder Hall 4.
  • While Double Cannons do high damage per second, they have a shorter range and cannot attack air troops.

Strategies

Defensive Strategy

  • Double Cannons are specialised to doing high ground DPS, enabling it to be an effective defense against ground tanks such as the Boxer Giant or the Battle Machine. It is also capable of picking off low-health troops in a few volleys, such as Bombers, Cannon Carts, Night Witches and Electrofire Wizards.
  • Although it has high damage output, the Double Cannon has a weakness against large swarms, as their burst only targets one unit. You will find it useful to protect Double Cannons with splash-damaging defenses like the Multi Mortar or the Roaster. Its inability to attack air also means that you should also protect Double Cannons with air-targeting defenses like Archer Towers.
  • Their short range prevents them from protecting buildings in front of them from Sneaky Archers if a Wall separates the Double Cannon and the building. It may still be useful to leave a building in front of them to prevent Sneaky Archers from easily destroying them under their cloak.
  • A larger issue arising from its short range comes in its interaction against the Cannon Cart, as the latter can outrange the Double Cannon by going into Mortar mode. To prevent Cannon Cart value, defenders should avoid grouping short-range defenses together.
    • An alternative to defending against Cannon Carts is to bait attackers into using them by deliberately grouping short-range defenses together, but also rig likely deployment locations with Push Traps to push them in range. However, skilled attackers will often use small units like a single Sneaky Archer to test for these traps beforehand, enabling their Cannon Carts to exploit the weakness.

Offensive Strategy

  • Air troops such as the Baby Dragon have little to worry from a Double Cannon since the Double Cannon cannot attack them. However, the Double Cannon can still distract them and prevent them from attacking more important buildings.
  • The Double Cannon is weak against large swarms. This makes them easy to overwhelm with Raged Barbarians or Skeletons from the Drop Ship.
  • Its short range allows the Cannon Cart to outrange it while the Cart is in Mortar mode. However, if the Cannon Cart is not properly watched by the attacker, it may wander into range while in Cannon mode and be promptly destroyed.

Upgrade Differences

The Double Cannon undergoes significant visual changes at levels 4, 5, 8, 9, and 10.

  • When initially constructed, two cannons are tied together with rope at the neck, with riveted wooden plating on the side of the barrel, on top of rotational rotational mount in the ground. The mount is surrounded by wooden planks acting as a foundation, with a piece of plank bolted down at the front corner and some vegetation around.
    • At level 2, the cannons are bigger, the rope holding them together is now strapped between them, there are now two wooden plates side by side and they become vertical. The inner planks has studs in the middle, the outer planks are flush at the corner and studded there, and the bolted piece is removed.
    • At level 3, the cannons are even bigger and instead of two separate cannon barrels tied together, the two barrels are joined together as one piece, the ropes in between is removed, and the two wooden plates are merged into one and becomes copper. The inner and outer planks surrounding the mount merges and raised up from the ground, most of the vegetation on it disappear.
    • At level 4, the ropes is replaced with a copper band around the neck, and the copper plate on the side is removed. The planks connects diagonally, the corners of the foundation receive metal plates with brass rivets, and all the vegetation is removed.
    • At level 5, the cannons become substantially larger and another copper band appears near the back of the barrels. The side of the base is reinforced by copper plates and the corner plates are part of the foundation and thicker.
    • At level 6, the front copper band turns golden and the muzzle rings become copper. The corner metal foundations are changed to square wooden foundation with golden square rotated 45 degrees embeds on them.
    • At level 7, the rear copper band also turns golden. The copper plates on the sides are replaced with golden plates and the corner wooden foundation turns into a brownish stone.
    • At level 8, the side of the barrel gains a golden fitting with a golden ring, the back band extends into a trapezoid in the middle, and the back of the barrels turn gold. The corners foundations turns into gold from brownish stone and the gold squares are replaced with copper fitting holding a gold ring.
    • At level 9, all the fittings and gold rings are removed. The back band moves further back and is wider, and some thick gold plates are welded on top, the trapezoidal bump also becomes a plate. The gold plates on the sides are replaced with black metal plates which indents through the middle and the corner foundation is L-shaped, raises even higher, and slanted on the top.
    • At level 10, the entire cannons are almost covered in gold and the muzzle ring is now silvery, the side plates are replaced with a folded triangle.

Statistics

Number Available Builder Hall Level
1 2 3 4 5 6 7 8 9 10
Total 0 1 1 1 2 2 2 3 3 3
Size Size
3x3
Level
Level
Damage per Second*
Damage
Damage per Shot
Damage
Hitpoints
Hitpoints
Build Cost
Builder Gold
Build Time
Time
Experience Gained
Experience
Builder Hall Level Required
Builder Hall
1 84 50 600 20,000 10m 24 2
2 92 55 690 50,000 1h 60 3
3 103 61 800 80,000 3h 103 3
4 113 67 910 300,000 12h 207 4
5 125 74 1,050 900,000 1d 293 5
6 136 81 1,250 1,400,000 2d 415 6
7 150 89 1,450 2,200,000 4d 587 7
8 165 98 1,700 3,200,000 6d 720 8
9 182 108 1,950 4,200,000 8d 831 9
10 202 120 2,200 5,200,000 10d 929 10
Range
Range
Time Between Bursts
Attack Speed
Shots Per Burst
Damage
Damage Type
Damage Type
Targets
Favorite Target
7 tiles 1.6s 4 shots Single Target Ground

*These damage per second values are seen in-game and are approximations; it does not necessarily do this much DPS if it cannot utilise the full potential of its bursts.

Icon Descriptions

Icon InfoTapping this icon displays information about the Double Cannon, such as Level, Damage Per Second, Hitpoints, Range, Damage Type and Targets.
Icon UpgradeTapping this icon begins upgrading the Double Cannon to the next level, if you have enough resources and a free Master Builder or O.T.T.O. When the Double Cannon is at maximum level, this icon is not shown.
Icon HoBTapping this icon instantly upgrades the Double Cannon to the next level, at the cost of one Hammer of Building if you have one. When the Double 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.

History

Patch Type Description
May 22, 2017 Update Added the Double Cannon with 5 levels. Double Cannon1Double Cannon2Double Cannon3Double Cannon4Double Cannon5
June 27, 2017 Update Added the level 6 Double Cannon. Double Cannon6
September 27, 2017 Update Added the level 7 Double Cannon. Double Cannon7
March 5, 2018 Update Added the level 8 Double Cannon. Double Cannon8
June 18, 2019 Update Added the level 9 Double Cannon. Double Cannon9
May 15, 2023 Update Added the level 10 Double Cannon. Double Cannon10

Trivia

  • Although the Double Cannon shoots burst fire of 4 shots, the Double Cannon will not separate the shots on different troops. For example, if it targets a Sneaky Archer with low health, the 1st shot will kill it and the remaining 3 will be wasted.
  • Although the description implies that the two cannon barrels fire two shots each per volley, all four shots appear to come out of the middle of both these cannon barrels. This trait is shared with the Multi Mortar, whose shells are all fired from a single barrel as opposed to all of their barrels.
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
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