Clash of Clans - Building - Builder Base - Army - Star Laboratory
In Clash of Clans, Builder Base, the Star Laboratory is the building that allow to Upgrade Troops! Upgrade in the Star Laboratory require the resource Elixir! 
Upgrade offer to raise the Damage per Seconds, Hitpoints and Unlock or Improve Ability!Star Laboratory is available at Builder Hall Level 2!
Laboratory
Hitpoints: 650
Hitpoints: 650The 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 Information
- Star Laboratory Upgrade Troops.- Star Laboratory need the resource Elixir in order to Upgrade.
- Upgrading Star Laboratory unlock new Troops Level!
- During the Star Laboratory Upgrade, the Upgrade doesn't block the Train!
- Maximum Star Laboratory available is 1
- Star Laboratory Size: 4x4
Star Laboratory Cost
| Star Laboratory Level | Elixir Cost | Builder Time | Expy Gain | Hitpoints | Builder Hall Level Require |
| 1 |  1,000 | N/A | N/A | 650 | 2 |
| 2 | 15,000 | 10M | 24 | 800 | 2 |
| 3 | 50,000 | 30M | 42 | 960 | 3 |
| 4 | 300,000 | 8H | 169 | 1,152 | 4 |
| 5 | 700,000 | 12H | 207 | 1,382 | 5 |
| 6 | 1,000,000 | 1D | 293 | 1,658 | 6 |
| 7 | 2,000,000 | 2D | 415 | 1,990 | 7 |
| 8 | 3,000,000 | 3D | 509 | 2,388 | 8 |
| 9 | 4,000,000 | 4D | 587 | 2,507 | 9 |
Star Laboratory Level of Max Troop
| Troops | Star Laboratory Level | ||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
| Raged Barbarian | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| Sneaky Archer | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| Boxer Giant | - | 2 | 4 | 8 | 10 | 12 | 14 | 16 | 18 |
| Beta Minion | - | 2 | 4 | 8 | 10 | 12 | 14 | 16 | 18 |
| Bomber | - | - | 2 | 8 | 10 | 12 | 14 | 16 | 18 |
| Baby Dragon | - | - | 2 | 8 | 10 | 12 | 14 | 16 | 18 |
| Cannon Cart | - | - | - | 2 | 10 | 12 | 14 | 16 | 18 |
| Night Witch | - | - | - | - | 2 | 12 | 14 | 16 | 18 |
| Drop Ship | - | - | - | - | - | 2 | 14 | 16 | 18 |
| Super P.E.K.K.A | - | - | - | - | - | - | 2 | 16 | 18 |
| Hog Glider | - | - | - | - | - | - | - | 2 | 18 |
Star Laboratory Troops Upgrade
| Troops | Troops Level | |||||||||||||||||
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | ||
| Raged Barbarian | Lab Level | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 3,5k | 6k | 9k | 50k | 100k | 300k | 330k | 700k | 900k | 1,000k | 1,200k | 2,000k | 2,200k | 3,000k | 3,200k | 3,800k | 4,000k | |
| Time | 30S | 5M | 15M | 3H | 6H | 12H | 12H | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Sneaky Archer | Lab Level | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 5k | 8k | 12k | 60k | 120k | 320k | 350k | 800k | 1,000k | 1,100k | 1,300k | 2,100k | 2,300k | 3,100k | 3,300k | 3,900k | 4,100k | |
| Time | 3M | 10M | 30M | 4H | 6H | 12H | 12H | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Boxer Giant | Lab Level | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 20k | 40k | 60k | 300k | 320k | 340k | 380k | 1,000k | 1,200k | 1,300k | 1,500k | 2,300k | 2,500k | 3,300k | 3,500k | 4,000k | 4,200k | |
| Time | 30M | 1H | 2H | 8H | 12H | 12H | 12H | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Beta Minion | Lab Level | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 50k | 80k | 120k | 250k | 280k | 320k | 360k | 900k | 1,100k | 1,300k | 1,500k | 2,300k | 2,500k | 3,300k | 3,500k | 4,000k | 4,200k | |
| Time | 1H | 3H | 5H | 8H | 12H | 12H | 12H | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Bomber | Lab Level | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 150k | 200k | 250k | 280k | 320k | 340k | 360k | 900k | 1,000k | 1,200k | 1,400k | 2,200k | 2,400k | 3,200k | 3,400k | 3,900k | 4,100k | |
| Time | 3H | 5H | 8H | 12H | 12H | 12H | 12H | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Baby Dragon | Lab Level | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 200k | 240k | 280k | 320k | 360k | 380k | 400k | 1,000k | 1,200k | 1,400k | 1,600k | 2,400k | 2,600k | 3,400k | 3,600k | 4,100k | 4,300k | |
| Time | 5H | 8H | 12H | 12H | 12H | 12H | 12H | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Cannon Cart | Lab Level | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 400k | 500k | 600k | 700k | 800k | 900k | 1,000k | 1,100k | 1,200k | 1,400k | 1,600k | 2,400k | 2,600k | 3,400k | 3,600k | 4,100k | 4,300k | |
| Time | 12H | 12H | 1D | 1D | 1D | 1D | 1D | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Night Witch | Lab Level | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 600k | 700k | 800k | 900k | 1,000k | 1,100k | 1,200k | 1,300k | 1,400k | 1,600k | 1,800k | 2,500k | 2,700k | 3,500k | 3,700k | 4,200k | 4,400k | |
| Time | 12H | 12H | 1D | 1D | 2D | 2D | 2D | 2D | 2D | 2D | 2D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Drop Ship | Lab Level | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 |
| Cost | 1,100k | 1,200k | 1,300k | 1,400k | 1,500k | 1,600k | 1,700k | 1,800k | 2,000k | 2,200k | 2,400k | 2,600k | 2,800k | 3,600k | 3,800k | 4,300k | 4,500k | |
| Time | 12H | 12H | 1D | 1D | 2D | 2D | 3D | 3D | 3D | 3D | 3D | 3D | 3D | 4D | 4D | 5D | 5D | |
| Super P.E.K.K.A | Lab Level | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 |
| Cost | 1,600k | 1,700k | 1,800k | 1,900k | 2,000k | 2,200k | 2,400k | 2,600k | 2,800k | 3,000k | 3,200k | 3,400k | 3,600k | 3,800k | 4,000k | 4,600k | 4,800k | |
| Time | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 4D | 4D | 4D | 4D | 4D | 4D | 4D | 5D | 5D | |
| Hog Glider | Lab Level | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Cost | 1,600k | 1,700k | 1,800k | 1,900k | 2,000k | 2,200k | 2,400k | 2,600k | 2,800k | 3,000k | 3,200k | 3,400k | 3,600k | 3,800k | 4,000k | 4,200k | 4,400k | |
| Time | 1D | 1D | 2D | 2D | 3D | 3D | 4D | 4D | 4D | 4D | 4D | 4D | 4D | 4D | 4D | 5D | 5D | |