Defense
Planetary defense structures protect your planet from enemy attacks. They fight automatically and partially rebuild after battles.
Defense Stats
Use the Defense Stats button in the build queue to see your defenses with research bonuses applied. This view shows current Armor, Shield, and Weapon values so you can compare defenses using your real tech levels.
Defense Structures
Weapon Systems
| Defense | Attack | Shield | Integrity | Cost (M/C/D) |
|---|---|---|---|---|
| Rocket Launcher | 100 | 25 | 2,500 | 2.5K/0/0 |
| Light Laser | 200 | 50 | 4,000 | 3K/1K/0 |
| Heavy Laser | 800 | 200 | 20,000 | 15K/5K/0 |
| Gauss Cannon | 2,500 | 500 | 75,000 | 50K/25K/5K |
| Ion Cannon | 300 | 1,500 | 15,000 | 5K/15K/0 |
| Plasma Turret | 7,500 | 1,000 | 250,000 | 100K/100K/50K |
Shield Systems
| Defense | Shield | Integrity | Cost (M/C) |
|---|---|---|---|
| Small Shield Dome | 5,000 | 50,000 | 25K/25K |
| Large Shield Dome | 100,000 | 500,000 | 250K/250K |
Missile Systems
| Defense | Purpose | Silo Required |
|---|---|---|
| Anti-Ballistic Missiles | Intercept IPMs | Level 2 |
| Interplanetary Missiles | Destroy defenses | Level 4 |
Defense Mechanics
Automatic Combat
Defenses fight automatically when attacked:
- No player action required
- Combines with stationed fleet
- Protects resources
Rebuild Chance
70% of destroyed defenses rebuild for free:
- Only applies to defenses
- Ships don't rebuild
- Reduces defensive losses
No Rapidfire Against (mostly)
Most defenses lack rapidfire:
- Exception: Some ships have rapidfire vs defenses
- Bombers are defense-killers
Rapidfire Against Defenses
| Attacker | Target | Rapidfire |
|---|---|---|
| Cruiser | Rocket Launcher | 10 |
| Bomber | Rocket Launcher | 20 |
| Bomber | Light Laser | 20 |
| Bomber | Heavy Laser | 10 |
| Bomber | Ion Cannon | 10 |
| Bomber | Gauss Cannon | 5 |
| Bomber | Plasma Turret | 5 |
| Deathstar | All defenses | 5-200 |
Defense Strategy
Early Game
- Rocket Launchers (cheapest)
- Light Lasers (better damage/cost)
- Shield Dome (protection layer)
Mid Game
- Heavy Lasers
- Ion Cannons
- Gauss Cannons
Late Game
- Plasma Turrets
- Large Shield Dome
- Anti-Ballistic Missiles
Defense vs Fleet
Advantages of Defense
- 70% rebuild after battles
- No fuel cost
- Automatic protection
- Always present
Disadvantages
- Can't attack
- Vulnerable to Bombers
- IPMs destroy them
- Limited tactical flexibility
Balance
Most players combine:
- Defense for passive protection
- Fleet for active operations