Spacebase structure
Defense Grid
Container for station shield, turret, missile, jamming, drone, and fleet defense systems used against offline raids.
- Tier 1-5
Tier requirements and effects
| Tier | Credits | Resources | Build duration | Applied effects |
|---|---|---|---|---|
| 1 | 0 | Immediate | Defense Substructure Cap: 20 | |
| 2 | 5000 | Iron Ore ×1500, Tungsten Ore ×100 | 40m | Defense Substructure Cap: 40 |
| 3 | 16000 | Iron Ore ×3200, Titanium Ore ×800, Tungsten Ore ×250 | 1.6666666666666667h | Defense Substructure Cap: 60 |
| 4 | 48000 | Titanium Ore ×2200, Tungsten Ore ×900, Iridium Ore ×180 | 3.5h | Defense Substructure Cap: 80 |
| 5 | 130000 | Tungsten Ore ×2600, Iridium Ore ×850, Nexium Ore ×160 | 7h | Defense Substructure Cap: 100 |
Substructure families and operations
Shield Generator
Layered shield emitters that absorb the first wave of offline raid damage. Each level adds shield-based defense rating, scales with Shield Operation and Engineering, and loses half output while damaged until repaired.
- Unlock tier: 1
- Primary skill: Shield Operation
- Secondary skill: Engineering
- Level 1 cost: 500 Credits; 2 Structural Frame T1, 1 Control Circuit T1
- Build duration: 10m at level 1; 240h at level 100.
| Effect | Per level |
|---|---|
| Shield Hp | 5 |
Turret Battery
Kinetic perimeter cannons for steady anti-raider fire. Each level adds turret defense rating, benefits from Gunnery and Armor Resistance support, and uses rare calibrators for late-level tuning.
- Unlock tier: 1
- Primary skill: Gunnery
- Secondary skill: Armor Resistance
- Level 1 cost: 550 Credits; 3 Structural Frame T1, 1 Control Circuit T1
- Build duration: 10m at level 1; 240h at level 100.
| Effect | Per level |
|---|---|
| Turret Dps | 5 |
Missile Battery
Long-range missile racks that punish heavier raid waves before they reach the station hull. Levels add missile defense rating and scale through Missile and Gunnery skills.
- Unlock tier: 2
- Primary skill: Missiles
- Secondary skill: Gunnery
- Level 1 cost: 700 Credits; 3 Structural Frame T1, 2 Control Circuit T1
- Build duration: 10m at level 1; 240h at level 100.
| Effect | Per level |
|---|---|
| Missile Dps | 5 |
Jamming Array
Electronic countermeasure towers that disrupt hostile targeting and approach vectors. Levels add jamming defense rating, scaling with Electronic Warfare and Engineering support.
- Unlock tier: 3
- Primary skill: Electronic Warfare
- Secondary skill: Engineering
- Level 1 cost: 850 Credits; 2 Structural Frame T1, 4 Control Circuit T1
- Build duration: 10m at level 1; 240h at level 100.
| Effect | Per level |
|---|---|
| Jamming | 5 |
Defense Drones
Autonomous drone bays that launch patrol craft during offline raids without consuming crew. Levels add drone defense rating and scale with Drones plus Fleet Command coordination.
- Unlock tier: 4
- Primary skill: Drones
- Secondary skill: Fleet Command
- Level 1 cost: 1000 Credits; 4 Structural Frame T1, 4 Control Circuit T1
- Build duration: 10m at level 1; 240h at level 100.
| Effect | Per level |
|---|---|
| Drone Defense | 5 |