The Weapon Lab is used to build Prototype Defenses created from Prototype Modules.
The Weapon Lab is used to build Prototype Defenses created from Prototype Modules. Prototype Defenses are powerful defenses that can be placed on your home base but only for a limited amount of time.
Level 1 
Level 2 
Level 3 
Level 4 Level 5
Weapon Lab Tips
- Upgrading the Weapon Lab allows you to place more and stronger Prototype Defenses
- Building size
- 4×4
| Level | Health | Prototype Defense Limit | Upgrade Cost Wood | Upgrade Cost Stone | Upgrade Cost Iron | Upgrade Time | Instant Diamonds | HQ Level | XP Gain |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2,000 | 1 | 1,047,000 | 800,000 | 293,000 | 1d 6h | 2,065 | 15 | 54 |
| 2 | 2,600 | 1 | 1,482,000 | 1,326,000 | 528,000 | 1d 10h | 2,759 | 16 | 58 |
| 3 | 3,300 | 2 | 2,400,000 | 1,995,000 | 1,268,000 | 1d 14h | 3,950 | 17 | 61 |
| 4 | 4,100 | 2 | 3,315,000 | 3,060,000 | 2,006,000 | 1d 18h | 5,175 | 18 | 64 |
| 5 | 5,000 | 3 | 4,655,000 | 4,655,000 | 4,655,000 | 2d 12h | 7,502 | 19 | 77 |