Laboratory

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For the 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

Level 13

Level 14

Level 15

Summary

• The Laboratory is a building where you can upgrade your Troops, Spells and Siege Machines, improving their stats such as damage and hitpoints. 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.
  • Heroes and Pets cannot be upgraded in the Laboratory, instead requiring a free Builder or the Pet House to upgrade respectively.
  • Super Troops cannot be directly upgraded; they are instead upgraded by upgrading the base troop.
• There is no penalty while the Laboratory is upgrading. You can start a new research while the Laboratory is upgrading, and any research continues normally while the Laboratory is upgrading.
• Normally, only one research project can be done at a time, however the Goblin Researcher, when available, allows a second research project to be done concurrently at the cost of Gems.
• It is not possible to cancel a research project. 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, Study Soup or Lab Assistant to speed up the timer for a short period of time. Each of these makes the timer tick down faster (at a rate of 24x, 4x or up to 13x respectively), but they only stack additively with each other. If there are two research projects active, the timer speedups apply to both projects.
• 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.
• At higher TH levels, 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 text "Research" will not be visible above the Laboratory.

Upgrade Differences

The Laboratory undergoes 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 turns darker and 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, the 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 ice tube on top of the Laboratory has been replaced with a small, green pond on top. And it's green and gold now. The fluid vat on the left becomes slightly shorter, but with gold accents. The fluid changes colour from light blue to a gradient purple. Another fluid of Dark Elixir is found on the valve on the left, just above the meter. The jungle theme and green color scheme indicates that this level is unlocked at Town Hall level 14.
  • At level 13, the Laboratory receives a darker blue purple colore scheme. The roof is covered up, and the pond has been replaced with a purple pyramid-shaped dome with dark purple metal and four pink tetrahedon-shaped crystals on top. Below the dome is a ring of metal. On the left side of the building, the fluid vat's frame is now colored a dark purple and the gold accents are gone. The bottom center of the building has received a thicker golden frame and colored a metallic silver on top, and purple at the bottom. The purple and gold theme indicates that this level is unlocked at Town Hall level 15.
  • At level 14, the Laboratory receives a dark red and yellow color scheme. The pyramid-shaped dome is replaced with a large, telescope-like device (similar to the one seen on the Star Laboratory), along with a circular stone ring. Below this ring is another one made of wood. Wooden frames are also added to each of the roof's corners. The fluid vats change as well, with the one on the left now having a light green fluid, while the one on the right resembles a tree trunk with a small leaf growing on it. Thick roots surround the structure, growing around the building. The wires that connect to the fluid vats also change positions, and are no longer connected to the roof. The nature theme and dark red color scheme indicates that this level is unlocked at Town Hall level 16.
  • At level 15, the Laboratory's appearance completely changes. The stone with golden supports at the top is replaced by a stone book with a red bookmark and some symbols, which is held by a platform with golden wings. All the red and light grey parts of the Laboratory are painted grey, except at the middle part of each door post; all the curling vines and leaves are removed. The ring at the roof is now made out of dark stone and gains metal gears on each side, and blue Eagle wings on each corner. The vat at the right is now made out of dark stone and iron, replacing the wooden one, the bottom part turns blue with a dark stone base, and the arrow of the dial turns black. At the opposite side, the fluid inside changes to a blue color, and gains metal reinforcements at the leftmost part of the vat. The frame at the bottom part is now made of three layers, with two of these being gold, and a blue one, with each layer decreasing in size as they go lower, until they stop at the stone side support. The stones of the Laboratory appear to be smoother. This level of the Laboratory matches the Town Hall 17 theme.

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	1	1	1	1	1	1	1
	10	11	12	13	14	15	16	17
	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	30m	42	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	1,300,000	1d 18h	388	10
9	1,070	2,100,000	2d 18h	487	11
10	1,140	3,800,000	4d	587	12
11	1,210	5,500,000	6d	720	13
12	1,280	8,100,000	7d	777	14
13	1,350	10,800,000	8d	831	15
14	1,400	13,000,000	9d	881	16
15	1,450	20,000,000	16d	1,175	17

Upgrade Chart

Main article: Laboratory/Upgrade Chart

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 (or B.O.B). 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.

Sounds

Generic

Sound Effect	Captions	Description
	Laboratory selected	When the Laboratory is selected
	Laboratory placed	When the Laboratory is placed or swapped with another building

Unique

Sound Effect	Captions	Description
	Laboratory upgrade begins	When the player confirms to upgrade something in the Laboratory
	Laboratory upgrade is finished	When the research time is completed

History

Patch	Type	Description
August 2, 2012	Game Release	Introduced 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 hitpoints 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.
October 10, 2022	Update	Added the level 13 laboratory.
December 12, 2022	Update	Upgrades in the Laboratory can be started even while the Building is being upgraded.
December 12, 2023	Update	Added the level 14 laboratory. Reduced upgrade costs at level 12 from 11.5M to 8.1M
November 25, 2024	Update	Added the level 15 Laboratory. Cost: 20,000,000 Elixir

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 17.
• 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 were 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 uses this phrase in its description.
  • Notably, troops are not made faster, though the Rage Spell and Haste Spell will give higher speed boosts, which justifies the "faster" part.
• The Laboratory contains four entryways instead of two, they can be seen in the back where the arches for the entryways stand.
• The total time required to 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).