The Engineering Lab increases turret system performance by enabling equippable parts. Collect, upgrade and equip parts to enhance defense tactics. Upgrade to unlock more turret slots.
Once you have built your Engineering Lab, you will find that level 1 modification parts will begin to drop in the Defense Simulator. At this time, this is the only way to obtain these items.
Building Stats
| Level | Cost | Time | Health | Upgradable Weapons | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
--- |
Cry. |
Gas |
--- |
--- |
Gun |
Cannon |
Concussion |
Tesla |
Incendiary |
Sniper |
Heavyweight |
| 1 | 12s | Y | |||||||||
| 2 | 1m | Y | |||||||||
| 3 | 2m | 600 | Y | ||||||||
| 4 | 10m | 650 | Y | Y | |||||||
| 5 | 4.500 | 4.500 | 30m | 700 | Y | Y | |||||
| 6 | 30,000 | 30,000 | 2h | 750 | Y | Y | |||||
| 7 | 30,000 | 30,000 | 6h | 800 | Y | Y | Y | ||||
| 8 | 30,000 | 30,000 | 10h | 850 | Y | Y | Y | ||||
| 9 | Y | Y | |||||||||
| 10* | Y | Y | |||||||||
| 11* | Y | Y | |||||||||
| 12* | Y | Y | |||||||||
| 13* | Y | Y | |||||||||
*Note: Level 10 and above building upgrades require 1 Cerulean Core.
Engineering Lab Parts
Parts come in two different kinds;
- Common Parts
- Rare Parts
Common Parts increase a single attribute of a kind of turret. All of them have the prefix "basic".
- Explosive ammo, which increase/grant splash radius;
- Armors, which increase turret health;
- Piercing ammo, which increase damage dealt;
- Scopes, which increase turret range;
- Coolants, which increase turret rate of fire;
- Dual barrels, which increase number of targets hit (UNCONFIRMED);
- <-something related to concussion effect, name unknown.
Rare Parts are a combination of two different Common Parts, granting both bonuses.
Note: some Rare Parts have different names, but grant the same bonuses. I.e. "Ferocious Explosive Ammo" and "Radial Piercing Ammo" both grants Damage and Splash Radius bonus.




