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Battle Machine info
"The Master Builder's prize invention smashes enemy buildings to bits. What better way is there to show who's the best builder around? Unlock the Electric Hammer ability to give opponents a real pounding!"



Battle Machine Ruin

  • Battle Machine is the first Hero unlocked in the Builder Base. It requires a level 5 Builder Hall and 900,000 Builder Elixir to repair and nut.
  • The Battle Machine is a single-target melee unit that smashes nearby buildings with its hammer, created and controlled by the Master Builder.
  • It sits atop the Battle Machine Altar when not attacking.
  • Unlike the other heroes, the Battle Machine will not defend, regardless of the status of the Master Builder.
  • At level 5, the Battle Machine unlocks the Electric Hammer ability. When used, it is momentarily stunned, regenerates some of its health and does increased damage for its next three attacks. This ability is improved every five levels.
    • The ability has three levels of charge, depending on the duration the player waits to use the ability. Higher levels of charge increase the Electric Hammer's damage and health regeneration. When the Battle Machine is level 15 or above, charge levels 2 and 3 also enable the attacks to chain to other nearby targets, albeit with decreasing damage for every target hit.
    • When deployed, the Battle Machine will start with the ability charged up to level 1. It takes about 40 seconds to charge up to level 3 from the moment the ability is activated.
  • The Battle Machine can currently be upgraded to level 35.
  • The Battle Machine is coded to have a Spring Weight of 25 for the purposes of Push Traps and Spring Traps. However, it is immune to them regardless.
  • At max level, when ability is activated it’s next 2 attacks will chain Lightning (like an electro dragon)


Offensive Strategy

  • Use the Electric Hammer ability when the Battle Machine is next to high hitpoint buildings or crowded areas to get more destruction. You can also use this strategy against high-damage buildings to prevent the threat from them staying up too long.
    • Make sure not to activate Electric Hammer when the Battle Machine engages the Guard Post (unless you are in desperate need of health) as you will be wasting your damage on overkill.
    • This ability is especially deadly against the Crushers, as it helps him withstand a lot of damage as well as take it out if it is all by itself.
      • A Battle Machine going 1 on 1 against a relative level Crusher can take it out without using the ability.
  • The Battle Machine can tank for troops such as Sneaky Archers, while they do the damage behind.
  • The Battle Machine has no actual preferred target but you want to be wary with Crushers because the AI seems to prefer them. Before deploying him, try to destroy the Crushers (as it is weak against them) and all the buildings around the side so that it doesn't wander off to the sides.
  • If you have unlocked the Battle Machine's ability, a good strategy is to deploy the Battle Machine from the edge of the base and let its ability charge go up to level 3. The Electric Hammer lasts until Battle Machine attack three times, but the ability gets stronger the more charge level it has. This means that the Battle Machine will be able to take down high-HP buildings and defenses (especially dangerous defenses such as Crushers and Double Cannons) faster the more charge level the ability has.
    • When the Battle Machine is at level 15, the ability can chain to other targets at charge levels 2 and 3. The Electric Hammer ability at charge level 3 can punish tightly packed defenses.
  • A good strategy with the Battle Machine is Boxer Giants, Cannon Cart. Deploy Boxer Giants to tank for troops, then deploy Battle Machine. If there's no defenses in surrounding, place Cannon Cart.
    • In addition, if you are using a Night Witch-based attack, this saves them from Mega Mines and Hidden Teslas placed in the corner as well as mitigating damage for the Battle Machine if they do exist.
    • If there's another building, do not trigger the ability before destroying the buildings, you'll need the damage bonus on more threatening buildings such as strong Walls.
  • Using the Electric Hammer at the end of the Battle Machine's swing (before the damage is done) is the most efficient. If you use the ability at that time, its auto-attack will be canceled but the next attack will be performed without the swing.
  • You can allow your troops to do damage to the base before sending in the Battle Machine to destroy the Builder Hall (if it has not been destroyed) and/or finish off the remainder of the base. An example would be using an all Baby Dragon attack with the Battle Machine; the Baby Dragons can destroy a large portion of the base and take out ground defenses threatening the Battle Machine before going for the remaining buildings.
    • If using an all-air attack, be careful about sending in the Battle Machine with the rest of the troops, as ground defenses like Double Cannons will not be distracted by the rest of your troops and can quickly defeat the Battle Machine. Because of this, it is usually best to deploy it later into an attack to finish off the core or destroy outside buildings for extra damage percentage. However, if using Drop Ships, the Skeletons dropped from the Drop Ships may be able to distract ground defenses well enough to send in the Battle Machine to supplement the main attack without getting taken out too quickly.
  • Be careful to not put troops directly behind the Battle Machine as they can all be damaged at the same time by splash damage Defenses and Traps, such as Mega Mines and the Multi Mortar.
  • In higher Builder Hall levels, the Battle Machine is easily demolished by strong defenses such as the Mega Tesla, so try to use it as a tank and shield your main Army. This can help your Army on the back to help destroy the buildings without getting wiped out.

Defensive Strategy

  • Cannons, Double Cannons, and the Mega Tesla are great at doing a lot of damage to the Battle Machine from a distance. Put them behind Walls and distraction buildings to keep the Battle Machine from taking out these defenses.
  • Keep Crushers well defended so that ranged troops can’t easily take them out. They can do a lot of damage to the Battle Machine as well as Boxer Giants alongside the Battle Machine.
  • High level Walls can stall the Battle Machine for a very long time and may result in the Battle Machine getting taken out before entering the inside of the base.
  • Placing a Guard Post next to a Crusher can cause the Battle Machine to head towards an Archer and if the Archer is in range of a Crusher it can cripple if not destroy the Battle Machine and leave the Crusher slightly damaged if not intact due to the Battle Machine's A.I. retargeting to attack the Archer letting the Crusher destroy the Battle Machine.
    • Barbarians can also help to distract the Battle Machine if a Guard Post is positioned next to strong defenses such as the Giant Cannon or Mega Tesla, as they have higher hitpoints than Archers and it will take a longer time for the Battle Machine to deal with them.


Preferred Target
Favorite Target
Attack Type
Damage Type
Movement Speed
Movement Speed
Attack Speed
Attack Speed
None Melee (Ground Only) 16 1.2s 1.25 tiles
Damage per Second
Damage per Hit
Ability Level
Upgrade Cost
Builder Elixir
Upgrade Time
Builder Hall Level Required
Builder Hall
1 125 150 3,000 N/A 900,000 12h 5
2 127 152.4 3,070 N/A 1,000,000 12h 5
3 130 156 3,140 N/A 1,100,000 12h 5
4 132 158.4 3,210 N/A 1,200,000 1d 5
5 135 162 3,280 1 1,300,000 1d 5
6 137 164.4 3,350 1 1,500,000 1d 12h 6
7 140 168 3,420 1 1,600,000 1d 12h 6
8 142 170.4 3,490 1 1,700,000 2d 6
9 145 174 3,560 1 1,800,000 2d 6
10 147 176.4 3,630 2 1,900,000 2d 12h 6
11 150 180 3,700 2 2,100,000 2d 12h 7
12 154 184.8 3,770 2 2,200,000 3d 7
13 157 188.4 3,840 2 2,300,000 3d 7
14 160 192 3,910 2 2,400,000 3d 12h 7
15 164 196.8 3,980 3 2,500,000 3d 12h 7
16 167 200.4 4,050 3 2,600,000 4d 7
17 170 204 4,120 3 2,700,000 4d 7
18 174 208.8 4,190 3 2,800,000 4d 7
19 177 212.4 4,260 3 2,900,000 4d 7
20 180 216 4,330 4 3,000,000 4d 7
21 186 223.2 4,400 4 3,100,000 5d 8
22 192 230.4 4,470 4 3,200,000 5d 8
23 198 237.6 4,540 4 3,300,000 5d 8
24 204 244.8 4,610 4 3,400,000 5d 8
25 210 252 4,680 5 3,500,000 5d 8
26 218 261.6 4,750 5 3,600,000 6d 9
27 226 271.2 4,820 5 3,700,000 6d 9
28 234 280.8 4,890 5 3,800,000 6d 9
29 242 290.4 4,960 5 3,900,000 6d 9
30 250 300 5,030 6 4,000,000 6d 9
31 258 309.6 5,100 6 4,100,000 7d 10
32 266 319.2 5,170 6 4,200,000 7d 10
33 274 328.8 5,240 6 4,300,000 7d 10
34 282 338.4 5,310 6 4,400,000 7d 10
35 290 348 5,380 7 4,500,000 7d 10

Electric Hammer (Ability)

Ability Cooldown
13 seconds per charge level 3 hits

Charge Level 1

Ability Level
Ability DPS
Ability DPH
Health Recovery
Number of Targets
Favorite Target
1 360 432 800 1
2 400 480 850 1
3 440 528 900 1
4 480 576 950 1
5 520 624 1,000 1
6 560 672 1,050 1
7 600 716 1,100 1

Charge Level 2

Attack Type
Damage Type
Chain Damage Decay
Chain Lightning -50%
Ability Level
Ability DPS (Primary Target)
Ability DPH (Primary Target)
Health Recovery
Number of Targets
Favorite Target
1 585 702 1,600 1
2 650 780 1,700 1
3 715 858 1,800 2
4 780 936 1,900 2
5 845 1,014 2,000 2
6 910 1,092 2,100 2
7 975 1,170 2,200 2

Charge Level 3

Attack Type
Damage Type
Chain Damage Decay
Chain Lightning -30%
Ability Level
Ability DPS
(Primary Target)
Ability DPH
(Primary Target)
Health Recovery
Number of Targets
Favorite Target
1 810 972 2,400 1
2 900 1,080 2,550 1
3 990 1,188 2,700 3
4 1,080 1,296 2,850 3
5 1,170 1,404 3,000 3
6 1,260 1,512 3,150 3
7 1,350 1,620 3,300 3


  • The Battle Machine was added in the May 22, 2017 update, with 5 levels.
  • The June 27, 2017 Builder Hall 6 update added levels 6-10 Battle Machine. The same update also changed the scaling of the Battle Machine's hitpoints: originally the Battle Machine had its hitpoints increase by 2% per level at all levels (including levels past 5); the update decreased the scaling past level 5, such that levels 6-10 increased the hitpoints by 1.5% and levels 11 and above increased the hitpoints by 1%.
  • The September 27, 2017 "Builder Hall 7" update added levels 11-20 Battle Machine.
  • The March 5, 2018 "Builder Hall 8" update added levels 21-25 Battle Machine.
  • The April 2, 2019 update reduced regeneration times across all levels.
  • The April 4, 2019 optional update fixed bug where Battle Machine animations get stuck during attack.
  • The June 18, 2019 "Builder Hall 9" update added levels 26-30 Battle Machine.
  • The December 9, 2019 Town Hall 13 update fixed issues with Battle Machine attacking Walls and doing no damage in Builder Base and improved Battle Machine's AI.
  • The December 19, 2019 optional update fixed text in Battle Machine's ability screen (text regarding Hero Ability upgrade).
  • The March 30, 2020 update removed regeneration time for the Battle Machine.
  • The June 22, 2020 update increased DPS of level 21-30 Battle Machine.
  • The May 15, 2023 "Builder Base 2.0" update added level 31-35 Battle Machine and reworked the Battle Machine's ability.
  • The October 9, 2023 update reduced the Electric Hammer ability's duration to last only two hits instead of three.
  • Balance changes on October 20, 2023 reinstated the Electric Hammer's duration to last three hits.

Hero Skins

Skin Availability

Below is a table that lists all Hero skins for the Battle Machine and the month in which they were available, in chronological order. Skins are divided into three classes:

  • Gold denotes a skin that was featured as a Gold Pass skin in Season Challenges.
    • All Hero Skins from the Gold Pass since April 2023 have been available as the first reward on the Gold track.
    • Prior to this, they have all been the last reward on the Gold track unless specified.
    • All Gold skins are available permanently for purchase at a price of 1,500 Gems exactly a year after the skin was originally offered in the Gold Pass.
  • Standard and Legendary denotes skins not available from the Gold Pass that were available only through a special offer or event.
    • Unless otherwise stated in the notes, these skins' special offers were available in the season listed, and cost the equivalent of $3.99 USD for Standard skins, or $9.99 USD for Legendary skins. The notes section may also include additional context of an offer.

Key for highlighted entries:

  • Entries that are highlighted denote that the skin is available in the current Season Challenges season.
  • Entries marked with a Coathanger Coathanger denote a Standard or Legendary skin that is permanently available for re-purchase in the cosmetics tab at the original price when the skin was originally offered.
SkinClassSeason AvailableNotes
Armored MachineStandardMay 2023The Armored Machine skin was made available as part of the "Builder Base Bonanza" challenge series that was available in May and early June 2023. It was earned as a reward upon scoring 28 stars (out of a possible 42) in the series.
Battle Machine of the NorthStandardJanuary 2024The Battle Machine of the North skin was available in a special offer in January 2024; it cost $7.99 USD or equivalent.

Battle Machine Skins

Battle Machine 3D preview
Armored Machine 3D preview
Battle Machine of the North 3D preview
Battle Machine 3D
Armored Machine 3D
Battle Machine of the North 3D
Battle Machine 3D KO
Armored Machine 3D KO
Battle Machine of the North 3D KO
Battle Machine 3D downed
Armored Machine 3D downed
Battle Machine of the North 3D downed
Battle Machine Icon
Armored Machine Icon
Battle Machine of the North Icon
Battle Machine
Initializing Skin Menu...
To view the skin wardrobe, please reload the page on the desktop skin.
Created by E12Dragon


  • Prior to the Builder Base 2.0 update the Battle Machine had upgrade differences.
    • When rebuilt, the Battle Machine appears to be a wooden robot with metallic joints and support controlled by the Master Builder in its head.
    • At level 10, a shoulder blade is added on its right shoulder. The hammer is also surrounded by a metallic ring from top to bottom.
    • At level 20, the shoulder piece turns gold as does the hammer's ring.
    • At level 26, the shoulder piece bolt nails have been replaced into a gear. On the side and the top of the hammer's rings, some metal has been added.
    • At level 30, the Battle Machine's cockpit is surrounded by a glass dome that is reinforced with metal, with a golden antenna on top.
Battle Machine1
Level 1-9
Battle Machine10
Level 10-19
Battle Machine20
Level 20-25
Battle Machine26
Level 26-29
Battle Machine30
Level 30


  • The Battle Machine is found at the bottom right side of the player's Builder Base surrounded by Obstacles when broken. These obstacles can’t be removed until re-built.
  • The hammer it wields could be a reference to Thor's hammer. In the description of the machine, it says it broke attempting to hoist the "realm's biggest hammer." Additionally it also has an electric ability.
  • The Battle Machine's hammer is held in the left arm whenever it faces left during battle. Whenever the Battle Machine faces right, however, it is rendered in mirror image, and the hammer and shoulder piece are instead found on the right arm. This visual inconsistency was also true for the other Heroes (in the Home Village) before they were converted to 3D models.
  • The description before the rebuilding of the Battle Machine reads, "This massive machine broke attempting to hoist the realm's biggest hammer. With some repairs, it could be taken into battle!"
  • The Battle Machine seems to have a secret compartment when zoomed-in. Its own controls seem to be separate from those apparently controlled by the Master Builder.
  • When activating the Battle Machine's ability, it makes a similar sound effect like the Barbarian King's when activating his ability, but with deep-pitched sound.
  • The Battle Machine's death animation differs between the max level and lower levels. At lower levels, when defeated, the machine completely breaks apart to leave a stunned Master Builder where it falls. However, at max level, when defeated, the machine simply remains intact but stunned for the remainder of the battle.
  • If you look carefully at the control room of level 30 Battle Machine you can see Master Builder in there.
  • Unlike other heroes before Hero Skins, and with the exception of the Royal Champion, the Battle Machine has the most level upgrade differences.
  • Unlike the other heroes, a Book of Building can be used on the Battle Machine, though only while it is being rebuilt.
  • The announcement of the Builder Hall 7 update originally planned the Battle Machine to only gain 5 new levels (up to level 15), but surprisingly, levels 16 to 20 were added as well.
  • Prior 3/30/2020 the Battle Machine had a regeneration time ranging from 3 to 6 minutes, which could be boosted with the Clock Tower.
  • There is a visual glitch where the Battle Machine's ability animation loops indefinitely (causing its hammer to be repeatedly struck by lightning) if the battle is ended while the ability is being triggered or is available. This loop continues until the player exits out of the battle or replay where this occurs.
  • The hero's name is labeled as 'warmachine' in the game's files.
  • The Battle Machine's upgrade cost always increases by 100,000 Builder Elixir, with the exceptions of levels 6 and 11, which increase the cost by 200,000 Builder Elixir.


  • The Battle Machine and the Barbarian King are the only heroes that only target ground units or defenses.
  • The Battle Machine , Battle Copter and Royal Champion are the only heroes that are not based on troops.
  • The Battle Machine and the Grand Warden are the only heroes that are not upgraded with Dark Elixir.
  • The Battle Machine is the only hero that is a machine, as opposed to a living entity.
  • The Battle Machine is the only hero that does not wander around in the base since it is not a living thing. For the same reason, when the Battle Machine Altar is moved, unlike the Home Village heroes, the Battle Machine will instantly teleport to the new location of the altar.
  • The Battle Machine is the only hero that takes time to build to level 1.
  • The Battle Machine, when activating its ability, is one of the seven troops to be associated with electricity, the others being the Electro Dragon, Super Wizard, Electro Owl, Electro Titan, Power P.E.K.K.A, and the Electrofire Wizard.
  • The Battle Machine is the only hero to have an achievement.
  • The Battle Machine is the only hero that is not bought in a shop.
Builder Base Army
Troops Raged BarbarianSneaky ArcherBoxer GiantBeta MinionBomberBaby DragonCannon CartNight Witch (Bat) • Drop Ship (Skeleton) • Power P.E.K.K.AHog GliderElectrofire Wizard
Heroes Battle MachineBattle Copter