Laboratory

[[File:{{{Alt}}}|28px|link=]]

For Builder Base version, see Star Laboratory.

"What dark secrets do these Wizards hide inside their Laboratory? Nobody has dared to look. All we know is that their research makes our spells and troops harder, better, faster and stronger!"

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Level 1	Level 2	Level 3	Level 4	Level 5	Level 6

Level 7	Level 8	Level 9	Level 10	Level 11	Level 12

Summary

• The Laboratory is a building where you can upgrade your Troops, Spells and Siege Machines. The Laboratory is unlocked at Town Hall level 3.
  • The upgrade fee is relevant to the resource used to create said target. Dark Elixir Troops/Spells cost Dark Elixir to upgrade, while all others cost Elixir.
    • Per each upgrade, the target costs more to create, but gains better overall stats, save for Siege Machines which don't have cost increments.
  • Heroes and Pets cannot be upgraded in the Laboratory, instead requiring a free Builder or the Pet House to upgrade respectively.
• It is possible to upgrade the Laboratory itself while an upgrade is happening within the Laboratory, and research will continue as normal while the Laboratory is being upgraded. However, you cannot start new research projects during the upgrade period.
• It is not possible to cancel a research project nor research multiple subjects at a time. However, one can still instantly complete the active one via spending Gems or a relevant Magic Item (a Book of Fighting for Troops and Siege Machines, a Book of Spells for Spells; a Book of Everything can be used for all three). Using a relevant Hammer can skip the upgrade timer and negate any costs.
  • It is also possible to use a Research Potion to boost the Laboratory's research speed to 24 times of the normal rate for 1 hour.
• The Laboratories emit a purple (level 1-6), blue (level 7), red (level 8) or yellow (level 9-12) glow from the entrances when upgrading something.
• The Laboratory cannot upgrade anything the player does not have access to, which may be dependent on the Laboratory itself or said project's associated entity and any other relevant buildings.
• Different levels of troops will receive graphical changes. However, when you are upgrading something, the laboratory interface will not display the improvements until the upgrade concludes.
• When a Laboratory upgrade is completed, it is applied immediately to any relevant troops, spells, or Siege Machines that are present on the village in or queued at no additional costs.
  • As a result, due to upgraded units having higher creation costs, you can queue the unit being upgraded in the relevant building just before the upgrade finishes, and then un-queue the unit when the upgrade finishes to gain some resources.
• Usually, Laboratory upgrades are tedious and can take extreme amounts of time. Due to this one should only choose the upgrades affecting whatever that they would prolifically use in the future, and optionally accelerate them with Magic Items. For example, GoWiPe users should focus on Golems, Wizards, P.E.K.K.As, and whatever spells that could help them.
• If all of your troops, spells, and siege machines are fully maxed for the current level your Laboratory is at, the word "Research" won't be visible above the Laboratory.

Upgrade Differences

• Laboratories undergo significant visual changes at all levels except levels 3 and 4.
  • When initially constructed, the Laboratory consists of a wooden octagonal structure with multiple door-less entrances. A mass of black tubing covers the center of the Laboratory's roof.
  • At level 2, the Laboratory adds a large vat of Elixir mounted on one side, while the roof is reinforced with steel. A dial is on the vat of Elixir, and wires connect it to the roof, near the black tubing.
  • At level 3, the Laboratory's roof adds a large black dome with circular elixir-colored ports.
  • At level 4, the doorways receive a golden trim.
  • At level 5, a second Identical Elixir vat is added to the left wall.
  • The level 6 Laboratory receives a faceted crystal sphere on its roof supported by a black iron rod and a helical golden spring. Electricity periodically runs up the surface of the sphere.
  • At level 7, the crystal sphere is replaced by a huge set of stacked circular gold rings, identical to those found atop the level 7 Hidden Tesla. The elixir vat on the left side of the Laboratory is replaced with a larger one filled with Dark Elixir. The ringed structure on the roof crackles periodically with electricity. The dark color theme indicates that this level is unlocked at Town Hall level 9.
  • At level 8, the circular gold rings are replaced with a vertical tube glowing from the inside. This tube is emblazoned with what appears to be the symbol representing radioactive material, which indicates that the liquid is likely radioactive. The doorposts turn to a dark red color. It seems that fiery red-orange fluid is filling the left chamber. The dial also starts moving back and forth rapidly, showing that the vat may be overflowing. During an upgrade, the vertical tube spews fire. The red color theme indicates that this level is unlocked at Town Hall level 10.
  • At level 9, the stack of rings is re-added to the top of the Laboratory, instead this time the rings are white rather than gold. The doorpost turns from a dark red to white. The red fluid on the left side is changed to yellow. The white and yellow color theme indicates that this level is unlocked at Town Hall level 11.
  • At level 10, the Laboratory takes on a blue-gray color scheme. The stack of rings is now replaced with a giant yellow screw, which twists in and out of the roof when an upgrade is in progress. The dial from level 8 returns and is now larger than before. The fluid vat on the left is now replaced by a metal tube with a cyan glow in the middle. The yellow and blue color scheme indicates that this level is unlocked at Town Hall level 12.
  • At Level 11, the Laboratory receives a darker blue color scheme. The roof has a thick band that encases the giant yellow screw, which is now replaced by a tube covered in ice. The doorposts are also covered in ice. The fluid vat on the left is slightly taller and darker. The icy theme and dark blue color indicate that this level is unlocked at Town Hall Level 13.
  • At Level 12, the Laboratory has a small pond on top. And it's green and gold now.

History

Patch	Type	Description
August 2, 2012	Game Release	Introduction of the Laboratory, with 6 levels.
September 19, 2012	Update	Upgraded troops are now visualized, giving them upgrade differences. Upgraded troops now have pink asterisks that represent their levels.
February 5, 2013	Update	Added the level 7 Laboratory. The Laboratory now emits light inside the entrance when upgrading troops or spells.
March 12, 2013	Update	The Laboratory screen now lets you browse available upgrades even while an upgrade is already in progress.
May 23, 2013	Update	Added the level 8 Laboratory. Decreased upgrade cost at levels 5-7. Level 5: 540,000 -> 500,000 Level 6: 1,080,000 -> 1,000,000 Level 7: 3,000,000 -> 2,500,000
October 28, 2013	Maintenance Break	Fixed a bug where players were shown to have researched troop levels higher than their Laboratory level would allow them to. Their extra levels were also reverted back in this maintenance break.
April 9, 2014	Update	Slightly increased Laboratory's HP at level 8 from 350 to 370.
December 11, 2014	Update	Redesigned level display to a symbol of numbers instead of numbers of pink asterisks. Increased HP at all levels. Level 1: 250 -> 500 Level 2: 270 -> 550 Level 3: 280 -> 600 Level 4: 290 -> 650 Level 5: 310 -> 700 Level 6: 330 -> 750 Level 7: 350 -> 800 Level 8: 370 -> 850
July 1, 2015	Update	Increased HP at levels 7 and 8. Level 7: 800 -> 830 Level 8: 850 -> 950
November 30, 2015	Sneak Peek	Announced the level 9 Laboratory.
December 10, 2015	Update	Added the level 9 Laboratory.
June 4, 2018	Sneak Peek	Announced the level 10 Laboratory.
June 11, 2018	Update	Added the level 10 Laboratory.
June 26, 2018	Balance Changes	Reduced upgrade time at levels 2-9. Level 2: 5h -> 3h Level 3: 12h -> 8h Level 4: 1d -> 16h Level 5: 2d -> 1d 8h Level 6: 4d -> 2d 16h Level 7: 5d -> 3d 8h Level 8: 6d -> 4d Level 9: 7d -> 6d
April 2, 2019	Update	Reduced upgrade time at levels 1-8 (except for level 3). Level 1: 30m -> 1m Level 2: 3h -> 2h Level 4: 16h -> 10h Level 5: 1d 18h -> 12h Level 6: 2d 16h -> 1d Level 7: 3d 8h -> 2d Level 8: 4d -> 3d Reduced upgrade cost at levels 7 and 8. Level 7: 2,500,000 -> 2,000,000 Level 8: 4,000,000 -> 3,000,000
December 9, 2019	Update	Added the level 11 Laboratory. Resized the Laboratory from 4x4 to 3x3.
March 30, 2020	Update	Research Potions now boost the Laboratory speed by 24x instead of 10x.
April 12, 2021	Update	Added the level 12 Laboratory. Ongoing Lab upgrade timer now continues normally when Lab is upgraded and can be finished with Gems or a Book. New unit/spell upgrades still cannot be started before the Lab upgrade is completed. Lab research screen is now accessible during Lab upgrade. The level badge flame now continues burning in combat hud when all troops/spells are deployed.
June 15, 2021	Update	Added horizontal scroll indicators to the Laboratory screen.
December 9, 2021	Update	Reduced upgrade costs at levels 3-11.

Trivia

• The conductor on top of the Laboratory on levels 6 and 7 depicts the 'lightning gatherer' that is used to raise the dead creatures to life that are often found in horror movies.
• The pressure gauges on the side Dark Elixir vats are only seen moving on the level 7 and 8 Laboratory, except for when troops/spells go under upgrade. Otherwise, all Laboratory gauges move.
• The Laboratory is currently the only building that can only be built/upgraded exactly once in every Town Hall level starting from Town Hall 3 to Town Hall 14.
• Interestingly, in the Home Village's Laboratory, if you have maxed out a troop or spell for your Laboratory level, and click on it, the game tells you, "Level __ Laboratory required". However, in the Builder Base's Star Laboratory, when clicking a maxed out troop for your Star Laboratory level, the game shows you all of the levels and upgrade bonuses, as would normally happen if the troops was not maxed.
• The Laboratory, Army Camp and the Barracks are the oldest army buildings in the game after its initial release.
• The phrase: "Harder, better, faster, and stronger!" is a reference to the French dance duo Daft Punk's widely known song, Harder Better Faster Stronger.
  • In Clash Royale, the Elite Barbarians card has a similar description.
  • Notably, troops aren't made faster, though the Rage Spell and Haste Spell will give higher speed boosts, which justifies the "faster" part.
• The Laboratory contains 4 entryways instead of 2, they can be seen in the back where the arches for the entryways stand.
• The total time finish all upgrades is theoretically 4 years, 73 days and 18 hours, assuming that the upgrade progress is not influenced by anything (such as Magic Items, time spent to acquire resources and Gems).

Icon Descriptions

	Tapping this icon displays information about the Laboratory, such as Level and Hitpoints.
	Tapping this icon begins upgrading the Laboratory to the next level, if you have enough resources and a free Builder. When the Laboratory is at maximum level, this icon is not shown.
	Tapping this icon instantly upgrades the Laboratory to the next level, at the cost of one Hammer of Building if you have one. When the Laboratory 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.
	Tapping this icon boosts your Laboratory for 1 hour by a factor of twenty-four, at the cost of one Research Potion. This icon is only shown if you have at least one Research Potion.
	Tapping this icon opens up the Laboratory interface, allowing you to upgrade your Troops' and Spells' levels.

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	10	11	12	13	14
Number Available	0	0	1	1	1	1	1	1	1	1	1	1	1	1

Size
3x3

Level	Hitpoints	Build Cost	Build Time	Experience Gained	Town Hall Level Required
1	500	5,000	1m	7	3
2	550	25,000	1h	60	4
3	600	50,000	2h	84	5
4	650	100,000	4h	120	6
5	700	200,000	8h	169	7
6	750	400,000	16h	240	8
7	830	800,000	1d	293	9
8	950	1,500,000	2d	415	10
9	1,070	3,000,000	4d	587	11
10	1,140	6,000,000	6d	720	12
11	1,210	9,000,000	9d	881	13
12	1,280	12,000,000	12d	1,018	14

Upgrade Chart

The following charts list the level of the Laboratory on the top and the unit/spell you can upgrade on the left. Each cell contains the level of the unit/spell you can train, how much it costs in elixir, and how long it takes. For example, Laboratory level 3 allows you to upgrade your Archers to level 3 for 250,000 Elixir and it takes 1 day. The top chart contains Elixir troop upgrades while the bottom chart contains Dark Elixir upgrades. Certain troops and spells don't have new levels unlocked at certain laboratory levels and are represented by ' - 's. For example, there's no new level of Goblin unlocked at Laboratory level 2, however you can upgrade it from level 1 to 2 with a level 2 (or higher) Laboratory if you didn't upgrade it when you had a level 1 Laboratory.

Those indicated by *(italics) show that certain items do not need the Laboratory fully upgraded to gain in levels. Those items are accessible by a lower Laboratory once the Town Hall and any other upgrade criteria is met. For example, a level 1 Laboratory can upgrade the Lightning Spell once the other requirements of Town Hall 5 and Spell Factory (level 1) are met.

Note that for the interest of keeping this table compact, abbreviations for costs are used. K and M stand for thousand and million, respectively.

Elixir

Upgrade Chart		Laboratory Level
		1	2	3	4	5	6	7	8	9	10	11	12
Barbarian	Level	2	-	3	-	4	5	6	7	8	9	-	10
	Cost	20K	-	60K	-	200K	650K	1.4M	2.5M	4M	8M	-	15M
	Time	2h	-	5h	-	12h	1d	1d 12h	3d	4d 12h	10d	-	14d
Archer	Level	2	-	3	-	4	5	6	7	8	9	-	10
	Cost	30K	-	80K	-	300K	800K	2M	3M	4.5M	9M	-	15.5M
	Time	3h	-	6h	-	12h	1d	1d 12h	3d	5d	10d 12h	-	14d
Giant	Level	-	2	-	3	4	5	6	7	8	9	10	-
	Cost	-	40K	-	150K	500K	1.2M	2M	3.5M	5M	9M	13M	-
	Time	-	4h	-	8h	12h	1d	2d	4d	8d	13d	15d	-
Goblin	Level	2	-	3	-	4	5	6	7	-	8	-	-
	Cost	45K	-	175K	-	500K	1.2M	2M	3.5M	-	9M	-	-
	Time	5h	-	9h	-	12h	1d	1d 12h	4d	-	12d	-	-
Wall Breaker	Level	-	2	-	3	4	5	-	6	7	8	9	10
	Cost	-	100K	-	250K	600K	1.2M	-	3M	6M	10.5M	13M	16M
	Time	-	6h	-	12h	18h	1d	-	2d 12h	5d	10d	14d 12h	16d
Balloon	Level	-	2	-	3	4	5	6	-	7	8	9	10
	Cost	-	125K	-	400K	800K	1.5M	2.75M	-	6.5M	11M	14M	18M
	Time	-	8h	-	12h	18h	1d	3d 12h	-	7d 12h	13d 12h	16d	18d
Wizard	Level	-	-	2	3	4	5	6	7	8	9	10	-
	Cost	-	-	120K	320K	620K	1.2M	2.2M	4.2M	7.2M	9.2M	14.2M	-
	Time	-	-	8h	12h	18h	1d	2d	4d	7d 12h	12d 12h	14d 12h	-
Healer	Level	-	-	-	-	2	3	4	-	5	-	6	7
	Cost	-	-	-	-	450K	900K	2.7M	-	6M	-	13M	17M
	Time	-	-	-	-	12h	1d	2d	-	10d	-	14d	17d
Dragon	Level	-	-	-	-	2	3	4	5	6	7	8	9
	Cost	-	-	-	-	1M	2M	3M	4.5M	7M	10M	15M	18.5M
	Time	-	-	-	-	18h	1d 12h	3d	6d	8d	14d	16d	18d
P.E.K.K.A	Level	-	-	-	-	-	2 / 3	4	5 / 6	7	8	9	-
	Cost	-	-	-	-	-	1.2M / 1.8M	2.8M	3.8M / 5M	7.5M	11M	14M	-
	Time	-	-	-	-	-	12h / 1d	2d	4d / 5d 12h	8d 12h	14d	15d	-
Baby Dragon	Level	-	-	-	-	-	-	2	3 / 4	5	6	7	8
	Cost	-	-	-	-	-	-	2M	3M / 4M	6M	9M	12M	17M
	Time	-	-	-	-	-	-	2d	4d / 6d	9d	12d	14d	16d 12h
Miner	Level	-	-	-	-	-	-	-	2 / 3	4 / 5	6	7	8
	Cost	-	-	-	-	-	-	-	3M / 4M	5M / 7M	9.5M	13M	17.5M
	Time	-	-	-	-	-	-	-	2d 12h / 4d	6d / 10d	13d	15d 12h	17d
Electro Dragon	Level	-	-	-	-	-	-	-	-	2	3	4	5
	Cost	-	-	-	-	-	-	-	-	9M	11M	16M	19M
	Time	-	-	-	-	-	-	-	-	8d	14d	16d	18d
Yeti	Level	-	-	-	-	-	-	-	-	-	2	3	4
	Cost	-	-	-	-	-	-	-	-	-	11M	15M	18M
	Time	-	-	-	-	-	-	-	-	-	11d	16d	18d
Dragon Rider	Level	-	-	-	-	-	-	-	-	-	-	2	3
	Cost	-	-	-	-	-	-	-	-	-	-	16M	17.5M
	Time	-	-	-	-	-	-	-	-	-	-	15d	17d
Lightning Spell	Level	*2	*3	4	-	-	5	6	7	8	9	-	-
	Cost	*50K	*100K	200K	-	-	600K	1.5M	3M	6M	10M	-	-
	Time	*4h	*8h	12h	-	-	1d	4d	7d	10d 12h	13d	-	-
Healing Spell	Level	-	*2	-	3	4	5	6	7	-	-	8	-
	Cost	-	*75K	-	150K	300K	900K	1.8M	3.6M	-	-	14M	-
	Time	-	*5h	-	10h	20h	1d 12h	4d	7d	-	-	16d	-
Rage Spell	Level	-	-	*2	*3	4	5	-	-	-	6	-	-
	Cost	-	-	*400K	*800K	1.6M	2.4M	-	-	-	11M	-	-
	Time	-	-	*12h	*1d	3d	5d	-	-	-	11d 12h	-	-
Jump Spell	Level	-	-	-	-	*2	-	-	3	-	-	4	-
	Cost	-	-	-	-	*2M	-	-	4M	-	-	12M	-
	Time	-	-	-	-	*4d	-	-	7d	-	-	15d	-
Freeze Spell	Level	-	-	-	-	-	-	2	3 / 4 / 5	6	7	-	-
	Cost	-	-	-	-	-	-	1.2M	2M / 3.6M / 5M	8.5M	11M	-	-
	Time	-	-	-	-	-	-	1d 12h	3d / 5d / 7d 12h	9d	11d 12h	-	-
Clone Spell	Level	-	-	-	-	-	-	-	2 / 3	4 / 5	-	6	7
	Cost	-	-	-	-	-	-	-	2.5M / 4M	6M / 8M	-	12M	16.5M
	Time	-	-	-	-	-	-	-	2d / 4d	5d 12h / 10d	-	15d	16d 12h
Invisibility Spell	Level	-	-	-	-	-	-	-	-	2	3	4	-
	Cost	-	-	-	-	-	-	-	-	8M	12M	15M	-
	Time	-	-	-	-	-	-	-	-	8d	11d 12h	15d 12h	-

Dark Elixir

Upgrade Chart		Laboratory Level
		5	6	7	8	9	10	11	12
Minion	Level	2	3 / 4	5	6	7	8	9	10
	Cost	3K	7K / 15K	25K	40K	90K	150K	250K	300K
	Time	8h	16h / 1d	2d	4d	7d	14d	15d 12h	16d 12h
Hog Rider	Level	2	3 / 4	5	6	7	8 / 9	10	11
	Cost	5K	9K / 16K	30K	50K	100K	150K / 240K	280K	320K
	Time	10h	20h / 1d 6h	2d	4d	7d 12h	11d 12h / 14d	16d	17d
Valkyrie	Level	-	2	3 / 4	5	6	7	8	9
	Cost	-	8K	12K / 25K	45K	90K	175K	260K	310K
	Time	-	1d	2d / 3d	5d	7d 12h	11d	16d	17d
Golem	Level	-	2	3 / 4	5	6 / 7	8 / 9	10	11
	Cost	-	10K	20K / 30K	50K	75K / 110K	160K / 200K	270K	320K
	Time	-	1d 6h	2d 12h / 3d 18h	5d	7d / 8d	10d 12h / 14d	16d	17d
Witch	Level	-	-	2	3	4	5	-	-
	Cost	-	-	50K	80K	130K	200K	-	-
	Time	-	-	4d	5d 12h	9d 12h	14d	-	-
Lava Hound	Level	-	-	2	3	4	5	6	-
	Cost	-	-	35K	60K	120K	190K	270K	-
	Time	-	-	2d 12h	5d	9d	14d	16d	-
Bowler	Level	-	-	-	2	3	4	5	6
	Cost	-	-	-	75K	125K	200K	280K	320K
	Time	-	-	-	4d	7d	12d	14d 12h	17d 12h
Ice Golem	Level	-	-	-	-	2 / 3	4 / 5	-	6
	Cost	-	-	-	-	80K / 120K	160K / 200K	-	320K
	Time	-	-	-	-	4d / 7d	10d 12h / 14d	-	17d
Headhunter	Level	-	-	-	-	-	2	3	-
	Cost	-	-	-	-	-	180K	240K	-
	Time	-	-	-	-	-	14d	16d	-
Poison Spell	Level	-	2	3	4	5	6	7	8
	Cost	-	12K	25K	50K	100K	175K	260K	300K
	Time	-	8h	1d	3d	9d	11d	15d 12h	17d 12h
Earthquake Spell	Level	-	2	3	4	5	-	-	-
	Cost	-	15K	30K	60K	120K	-	-	-
	Time	-	18h	1d 12h	5d	11d	-	-	-
Haste Spell	Level	-	-	2	3 / 4	5	-	-	-
	Cost	-	-	20K	40K / 70K	110K	-	-	-
	Time	-	-	1d 12h	3d / 6d	11d	-	-	-
Skeleton Spell	Level	-	-	-	2 / 3	4	5 / 6	7	-
	Cost	-	-	-	25K / 40K	70K	125K / 150K	250K	-
	Time	-	-	-	1d 12h / 3d	6d	8d 12h / 10d 12h	15d	-
Bat Spell	Level	-	-	-	2 / 3	4	5	-	-
	Cost	-	-	-	30K / 60K	100K	150K	-	-
	Time	-	-	-	2d / 4d	7d 12h	9d	-	-

Siege Machines

Upgrade Chart		Laboratory Level
		10	11
Wall Wrecker	Level	2 / 3	4
	Cost	6M / 8M	14M
	Time	8d / 10d	16d
Battle Blimp	Level	2 / 3	4
	Cost	6M / 8M	14M
	Time	8d / 10d	16d
Stone Slammer	Level	2 / 3	4
	Cost	6M / 8M	14M
	Time	8d / 10d	16d
Siege Barracks	Level	*2 / 3	4
	Cost	*8M / 11M	14M
	Time	*10d / 14d	16d
Log Launcher	Level	*2 / 3	4
	Cost	*8M / 11M	14M
	Time	*10d / 14d	16d
Flame Flinger	Level	*2 / 3	*4
	Cost	*8M / 11M	*14M
	Time	*10d / 14d	*16d