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For the Home Village version, see Laboratory.
Star Laboratory10

"The Star Laboratory searches the heavens for secrets to unlock a troop's full potential. Improve troop hitpoints, damage and housing space in addition to special troop abilities!"


Star Laboratory Ruin
Ruin
Star Laboratory1
Level 1
Star Laboratory2
Level 2
Star Laboratory3
Level 3
Star Laboratory4
Level 4
Star Laboratory5
Level 5
Star Laboratory6
Level 6
Star Laboratory7
Level 7
Star Laboratory8
Level 8
Star Laboratory9
Level 9
Star Laboratory10
Level 10

Summary

  • The Star Laboratory is a building that allows the player to upgrade their troops, much like the Laboratory in the Home Village. The Star Laboratory is unlocked at Builder Hall level 2.
    • At the beginning of the tutorial, the Star Laboratory is ruined. It is automatically rebuilt after repairing the Builder Hall during the tutorial.
  • Like in the Laboratory, if the Star Laboratory is upgraded while research is in progress, the research will continue as usual. However, research improvements become avaliable only after the Star Laboratory's own upgrade concludes.
  • Troops are upgraded using Builder Elixir. Upgrades may improve their hitpoints, damage, their special ability, or the number of the same type of troop that is able to fit into one Army Camp. These vary between troops.
    • All troops unlock their special abilities at level two, except the Night Witch, whose ability is unlocked at level four. The abilities improve as a troop is upgraded.

Upgrade Differences

  • Each time the Star Laboratory is upgraded (depending on what level) you can see Roman numerals (I-X) in front that corresponds to the level of the Star Laboratory.
  • The Star Laboratory undergoes significant changes at levels 1, 3, 4, 5, 6, and 9.
    • At level 1, the Star Laboratory appears to be an observatory-like building with a small telescope protruding through its top tied with ropes.
    • At level 2, the ladder is moved to the left side of the Star Laboratory with a ramp on the right. The rope is removed from the telescope, and its rim becomes stone.
    • At level 3, the telescope is longer and a ramp replacing the stairs on the left side. The door frames are also partially gold, and the telescope's rim becomes metal.
    • At level 4, the telescope is now golden along with the door frames and the ramp on the right side is replaced by a pressure gauge, similar to those on the Laboratory. The roman numerals also turn gold.
    • At level 5, the telescope becomes rotatable on top of the Star Laboratory using gears. The ramp on the left side turns into metal stairs. The blue gear on the top by the telescope turns golden.
    • At level 6, the telescope's aperture is larger and the type is changed with a refracted focal length, making the overall length shorter.
    • At level 7, a secondary, smaller telescope is added to the right of the primary.
    • At level 8, a tertiary telescope is added next to the secondary on top of the primary. The pressure gauge also turns golden on top.
    • At level 9, the main telescope is reversed to normal length. The needle on the gauge also disappears. A stone also is placed behind the gear.
    • At level 10, the stone bricks are replaced with gold. Gold bricks are also added to the bottom-centre part of the building.

Statistics

Number Available Builder Hall Level
1 2 3 4 5 6 7 8 9 10
Total 1 1 1 1 1 1 1 1 1 1
Stage 1 Limit 1 1 1 1 1
Stage 2 Limit 0 0 0 0 0
Size Size
4x4
Level
Level
Hitpoints
Hitpoints
Build Cost
Builder Elixir
Build Time
Time
Experience Gained
Experience
Builder Hall Level Required
Builder Hall
1 650 1,000 N/A N/A 2
2 800 15,000 10m 24 2
3 975 50,000 30m 42 3
4 1,150 300,000 8h 169 4
5 1,350 700,000 12h 207 5
6 1,600 1,000,000 2d 415 6
7 1,850 2,000,000 4d 587 7
8 2,150 3,000,000 6d 720 8
9 2,450 4,000,000 8d 831 9
10 2,750 5,000,000 10d 929 10

*The cost for level 1 is as shown in the Shop. It is automatically repaired and the cost paid for when the Builder Hall is upgraded to level 2.

Upgrade Chart

The following charts lists the upgrades available at each Star Laboratory level for each troop type, as well as its cost in Builder Elixir and time.

Upgrade Chart Star Laboratory Level
1 2 3 4 5 6 7 8 9 10
Raged Barbarian Level 2 3 / 4 5 / 6 7 / 8 9 / 10 11 / 12 13 / 14 15 / 16 17 / 18 19 / 20
Cost 3.5K 7K / 10K 90K / 180K 300K / 330K 700K / 900K 1M / 1.2M 2M / 2.2M 3M / 3.2M 3.8M / 4M 4.6M / 5.2M
Time 30s 5m / 15m 5h / 10h 15h / 20h 1d / 1d 12h 2d / 2d 12h 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Sneaky Archer Level 2 3 / 4 5 / 6 7 / 8 9 / 10 11 / 12 13 / 14 15 / 16 17 / 18 19 / 20
Cost 5K 8K / 12K 100K / 200K 320K / 350K 800K / 1M 1.1M / 1.3M 2.1M / 2.3M 3.1M / 3.3M 3.9M / 4.1M 4.7M / 5.3M
Time 3m 10m / 30m 6h / 11h 16h / 21h 1d / 1d 12h 2d / 2d 12h 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Boxer Giant Level - - 4 / 5 / 6 7 / 8 9 / 10 11 / 12 13 / 14 15 / 16 17 / 18 19 / 20
Cost - - 60K / 120K / 240K 350K / 380K 1M / 1.2M 1.3M / 1.5M 2.3M / 2.5M 3.3M / 3.5M 4M / 4.2M 4.8M / 5.4M
Time - - 5h / 10h / 16h 20h / 1d 1d 12h / 2d 2d / 2d 12h 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Beta Minion Level - - 4 / 5 / 6 7 / 8 9 / 10 11 / 12 13 / 14 15 / 16 17 / 18 19 / 20
Cost - - 50K / 110K / 220K 330K / 360K 900K / 1.1M 1.3M / 1.5M 2.3M / 2.5M 3.3M / 3.5M 4M / 4.2M 4.8M / 5.4M
Time - - 4h / 8h / 12h 18h / 1d 1d 12h / 2d 2d / 2d 12h 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Bomber Level - - - 6 / 7 / 8 9 / 10 11 / 12 13 / 14 15 / 16 17 / 18 19 / 20
Cost - - - 320K / 340K / 360K 900K / 1M 1.2M / 1.4M 2.2M / 2.4M 3.2M / 3.4M 3.9M / 4.1M 4.7M / 5.3M
Time - - - 16h / 20h / 1d 1d 12h / 2d 2d / 2d 12h 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Baby Dragon Level - - - 6 / 7 / 8 9 / 10 11 / 12 13 / 14 15 / 16 17 / 18 19 / 20
Cost - - - 360K / 380K / 400K 1M / 1.2M 1.4M / 1.6M 2.4M / 2.6M 3.4M / 3.6M 4.1M / 4.3M 5.1M / 5.5M
Time - - - 16h / 20h / 1d 1d 12h / 2d 2d / 2d 12h 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Cannon Cart Level - - - - 8 / 9 / 10 11 / 12 13 / 14 15 / 16 17 / 18 19 / 20
Cost - - - - 1M / 1.1M / 1.2M 1.4M / 1.6M 2.4M / 2.6M 3.4M / 3.6M 4.1M / 4.3M 5.3M / 5.7M
Time - - - - 1d / 1d 12h / 2d 2d / 2d 12h 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Night Witch Level - - - - - 10 / 11 / 12 13 / 14 15 / 16 17 / 18 19 / 20
Cost - - - - - 1.4M / 1.6M / 1.8M 2.5M / 2.7M 3.5M / 3.7M 4.2M / 4.4M 5.2M / 5.6M
Time - - - - - 2d / 2d / 2d 12h 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Drop Ship Level - - - - - - 12 / 13 / 14 15 / 16 17 / 18 19 / 20
Cost - - - - - - 2.4M / 2.6M / 2.8M 3.6M / 3.8M 4.3M / 4.5M 5.5M / 5.7M
Time - - - - - - 2d 12h / 3d 12h / 4d 12h 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Power P.E.K.K.A Level - - - - - - - 14 / 15 / 16 17 / 18 19 / 20
Cost - - - - - - - 3.6M / 3.8M / 4M 4.6M / 4.8M 5.6M / 5.8M
Time - - - - - - - 4d 12h / 5d 12h / 5d 12h 6d / 6d 6d 12h / 6d 12h
Hog Glider Level - - - - - - - - 16 / 17 / 18 19 / 20
Cost - - - - - - - - 4M / 4.2M / 4.4M 5.4M / 5.8M
Time - - - - - - - - 5d 12h / 6d / 6d 6d 12h / 6d 12h
Electrofire Wizard Level - - - - - - - - - 18 / 19 / 20
Cost - - - - - - - - - 4.4M / 5.4M / 5.8M
Time - - - - - - - - - 6d / 6d 12h / 6d 12h

Icon Descriptions

Icon InfoTapping this icon displays information about the Star Laboratory, such as Level and Hitpoints.
Icon UpgradeTapping this icon begins upgrading the Star Laboratory to the next level, if you have enough resources and a free Master Builder or O.T.T.O. When the Star Laboratory is at maximum level, this icon is not shown.
Icon HoBTapping this icon instantly upgrades the Star Laboratory to the next level, at the cost of one Hammer of Building if you have one. When the Star Laboratory 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.
Icon ResearchTapping this icon opens up the Star Laboratory interface, allowing you to upgrade your troops' levels.

Trivia

  • Like the Clock Tower, and Town Halls 12, 13, and 14, it has Roman numerals corresponding to its level.
  • The Star Laboratory is the Master Builder's favorite building, as mentioned in the tutorial.
  • Unlike most other Builder Base buildings, the Star Laboratory takes up a 4x4 space.
  • All troops can be upgraded to level 2 without having to upgrade the Star Laboratory to match the Builder Hall level.
  • The Star Laboratory has the same research icon (with a sword and a spell bottle) as the Laboratory. Ironically, the Builder Base has no spells to upgrade.
  • The upgrade time and cost of each troop "smoothly" follows the time and cost to unlock it (i.e. upgrading the Builder Barracks to the corresponding level).
  • Interestingly, 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. However, 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".
  • Reflections of the ground and sky can be seen in the telescope lens of the destroyed Star Lab, and at level 9, reflections of the main telescope can be seen in an additional two small lenses.
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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