Bomb

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For its aerial counterpart, see Air Bomb.

For the larger analogue, see Giant Bomb.

For the even larger analogue, see Giga Bomb.

For a similar trap in the Builder Base and Clan Capital, see Mine.

"Nothing says 'STAY OUT' quite like a good old-fashioned hidden bomb."

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Level 1-2

Level 3-4

Level 5-6

Level 7-8

Level 9-10

Level 11-12

Level 13

Summary

• Bombs are traps that remain hidden until they are activated by an attacking troop moving into their trigger radius like other traps. It is the first such trap unlocked.
• Once triggered, Bombs must be re-armed, which can be done for free and takes place automatically after logging into the game.
• Although they are the weakest of all the traps, Bombs can still have a positive impact on the effectiveness of a village's defense if properly placed, but only if they are always re-armed after triggering.
• Even though Bombs are classified as "Defensive Buildings", they are not buildings and do not need to be triggered/destroyed for your enemy to reach 100% destruction (nor do they count toward it).
• The Bomb explodes approximately 1.5 seconds after an enemy comes within 1 tile of it, causing splash damage to every enemy ground troop within 3 tiles. This delay means that you will want to place the Bomb in an area where troops are likely to remain for a period of time like right next to a building they are attacking.
• The Bomb has a knockback effect that can affect any ground troops with three or less housing space. The more housing space they have, the less they get knocked back.

Strategies

Defensive Strategies

• A Bomb can destroy an equivalent-level Wall Breaker in one hit. Since Wall Breaker A.I. targets wall junctions, place Bombs at outside perimeter intersections and corners for maximum effect.
  • This can be used to ruin pathing for a potential Queen Charge or similar strategy, though it is ineffective against Super Wall Breakers (or if the enemy deploys sufficiently many Wall Breakers and they are able to reach the Walls).
• One defensive strategy commonly used for the placement of Bombs is to position them along the outside Wall, behind external buildings. The external buildings serve to delay the enemy troops until they have grouped up, so that when they attack the Wall, the Bomb hits many troops at once. This is most effective against low-health troops, though grouping enough Bombs together can be a serious hazard for Giants, too.
• Alternatively, some players decide to place a group of Bombs around a defensive building on the outside of their base, to act as a trap for enemy Giants. Placing a Spring Trap at the entrance to these trapped defense structures makes them even more effective.
• Be cautious when upgrading a Bomb, as this will reveal its location. Combat this by relocating it during the upgrade period, since it will not trigger during that period anyway. This is useful against players who scout out your base ahead of time for revenge attacks.
• Exploiting the way the A.I. targets buildings can dramatically increase the defensive effectiveness of your Bombs. For example, a group of 2-3 Bombs placed between a pair of resource collectors is very likely to destroy an entire group of Goblins as they pass from one collector to the next.
• A Bomb upgraded to level 4 or higher can instantly kill a group of summoned Skeletons, making Bombs very effective against Witch based attacks. However, note that Skeletons on their own are unable to trigger Bombs, meaning they will not be immediately wiped out until other troops (such as Giants) trigger it.
• Bombs are useful against players who use a Battle Blimp filled with Sneaky Goblins who aim to use the Sneaky Goblins to quickly destroy the Town Hall. Since Bombs trigger even if the Sneaky Goblins are invisible, a sufficient amount of Bombs around the Town Hall can quickly kill the Sneaky Goblins and defuse this tactic. This increases in importance at the highest Town Hall levels, where Town Hall sniping strategies become more viable as the Town Hall gains an increasingly devastating weapon.
• They are even good against witches. as the bomb damages the Skeletons and the Witch.

Offensive Strategies

• Bombs do only slight damage to high health troops but will destroy small troops. Try using tanks or high health troops like a Giant to absorb the Bomb.
  • Skeletons spawned by Witches or a Skeleton Spell do not trigger the Bomb, so using such troops to trigger the traps may be less beneficial in Witch-based strategies.
• If you suspect that a particular location has Bombs in it, use a small troop, such as a Barbarian to trigger them. Do not send small troops in mass, or they may all be heavily damaged at best, or completely wiped out at worst.
  • Air troops like Minions do not have to worry about Bombs as the Bombs cannot damage them.

Upgrade Differences

• The Bomb goes through significant visual changes at levels 3, 5, 7, 9, and 11.
  • When initially constructed the Bomb appears as a spherical iron shell with a fuse.
  • At level 3, the Bomb becomes a little bigger and gains 4 golden spikes around its circumference.
  • At level 5, the Bomb is encased in two metal shells that have several golden bumps on their surface.
  • At level 7, the Bomb is encased in two golden shells with no bumps on the surface.
  • At level 9, the Bomb takes the shape of a truncated icosahedron with spikes.
  • At level 11, the Bomb takes the shape of a cube with the corners golden and spiked, and gains a thin torus around its circumference.
  • At level 13, the Bomb turns into blue, and is protected by dark metal plating with studs, and the opening of the fuse changes from a flat circle into two layers of a pentagon, with one being brass and the other made of dark iron.

Icon Descriptions

	Tapping this icon displays information about the Bomb, such as Level, Damage Type and Targets.
	Tapping this icon begins upgrading the Bomb to the next level, if you have enough resources and a free Builder (or B.O.B). When the Bomb is at maximum level, this icon is not shown.
	Tapping this icon instantly upgrades the Bomb to the next level, at the cost of one Hammer of Building if you have one. When the Bomb is at maximum level, or if the Town Hall requirements for the next level are not met, this icon is not shown.
	Tapping 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.
	Tapping 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.
	Tapping 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.
	Tapping this icon, which is displayed only while an upgrade is in progress, boosts all your Builders for 1 hour by a factor of ten, at the cost of one Builder Potion. This icon is only shown if you have at least one Builder Potion.
	Tapping this icon, which is displayed only while an upgrade is in progress, cancels the current upgrade and refunds half of the upgrade cost.

Statistics

Gold Pass modifiers

Input Gold Pass boosts to modify the statistics in the tables below accordingly

ApplyReset

Town Hall Level	1	2	3	4	5	6	7	8	9
Number Available	0	0	2	2	4	4	6	6	6
	10	11	12	13	14	15	16	17
	6	6	6	7	8	8	8	8

Size
1x1

Level	Damage	Cost	Build Time	Experience Gained	Town Hall Level Required
1	20	400	N/A	N/A	3
2	24	1,000	6m	18	3
3	29	10,000	20m	34	5
4	35	40,000	40m	48	7
5	42	100,000	1h	60	8
6	54	230,000	3h	103	9
7	72	330,000	5h	134	10
8	92	500,000	6h	146	11
9	125	750,000	12h	207	13
10	140	1,300,000	1d	293	14
11	155	2,500,000	2d	415	15
12	170	4,000,000	3d	509	16
13	185	10,000,000	8d	831	17

Trigger Radius	Damage Radius	Damage Type	Unit Type Targeted	Favorite Target
1.5 tiles	3 tiles	Area Splash	Ground	None

Unarmed Bombs
Level 1 & 2	Level 3 & 4	Level 5 & 6	Level 7 & 8	Level 9 & 10	Level 11 & 12	Level 13

History

Patch	Description
August 2, 2012	Introduction of the Bomb, with no levels and 6 of them to build.
August 30, 2012	Bombs and other traps are now visible when visiting own clan members.
September 19, 2012	Improved visual effect of Bomb's lit fuse.
October 15, 2012	Bombs and other traps are no longer visible during a defense replay.
February 5, 2013	Tapping a Bomb now shows its trigger radius.
November 6, 2013	Bombs now remain in the village after being triggered, but imposing a re-arm cost in doing so, and removing the ability to sell untriggered Bombs. Added four more levels to the Bomb, for a total of five.
July 3, 2014	Added the level 6 Bomb. All Bombs and other traps can now be re-armed by tapping the Town Hall. Moved down the Town Hall requirement for level 5 Bomb to Town Hall 8 (from 9).
December 10, 2015	Reduced the re-arm costs for the Bomb at all levels. Level 1: 400 -> 50 Level 2: 500 -> 100 Level 3: 600 -> 150 Level 4: 700 -> 200 Level 5: 800 -> 250 Level 6: 900 -> 300
May 22, 2017	Increased the Bomb's damage at all levels. Level 1: 12 -> 20 Level 2: 16 -> 24 Level 3: 20 -> 29 Level 4: 26 -> 35 Level 5: 34 -> 42 Level 6: 42 -> 54
March 5, 2018	Added the level 7 Bomb.
October 23, 2018	Added the level 8 Bomb. Reduced the detonation delay to 1.5 seconds (from 2 seconds).
April 2, 2019	Removed re-arm costs for the Bomb entirely (as with all traps and reloadable defenses), instead automatically re-arming after logging into the game.
December 9, 2019	Added the level 9 Bomb.
March 30, 2020	Reduced the upgrade costs of level 5-7 Bombs. Level 5: 1,000,000 -> 500,000 Level 6: 1,500,000 -> 1,000,000 Level 7: 2,000,000 -> 1,500,000
January 20, 2021	Increased the level 9 Bomb's damage from 112 to 125.
April 12, 2021	Added the level 10 Bomb. Reduced upgrade costs at level 5-7. Level 5: 500,000 -> 300,000 Level 6: 1,000,000 -> 600,000 Level 7: 1,500,000 -> 1,200,000 Reduced upgrade times at level 2, 5, and 6. Level 2: 15m -> 6m Level 5: 1d -> 18h Level 6: 2d -> 1d 12h
December 9, 2021	Reduced upgrade costs at levels 6-8.
October 10, 2022	Added the level 11 Bomb.
December 12, 2023	Added the level 12 Bomb. Reduced upgrade costs/times at levels 3-10.
November 25, 2024	Added the level 13 Bomb.

Trivia

• The fuse on the Bomb is lit constantly, but never burns up.
• The Bomb, Giant Bomb, and Spring Trap are the oldest traps in the game.
• If the Bomb has been triggered just before the battle ends, the Bomb will not explode.