GC4 Improvement Projects Table
| Improvement | Production Cost | Base Effects | Level Effects | Adjacency Level Bonuses | Requirements |
|---|---|---|---|---|---|
 |
-3 Manufacturing Cost | +2 Population Cap | Unavailable with flag Leaders Screen Unlocked | ||
 |
-45 Manufacturing Cost | Technology Required:
| |||
 |
-60 Manufacturing Cost | Unlock Scan Planet required
Unavailable with counter Scan Planet | |||
 |
-60 Manufacturing Cost | Sacred World required
Unlock Investigate Murder required | |||
|
-30 Manufacturing Cost | Mystery required | |||
|
-120 Manufacturing Cost
-2 Durantium Cost |
Citizen Race Required:
| |||
 |
-250 Manufacturing Cost | ||||
| -200 Manufacturing Cost | Technology Required:
| ||||
 |
-100 Manufacturing Cost | Unlock Heritage required | |||
 |
-200 Manufacturing Cost | Technology Required:
Planet Improvement Required:
| |||
|
-2500 Manufacturing Cost
-3 Promethion Cost |
Technology Required:
Unavailable for Race Trait:
| |||
|
-60 Manufacturing Cost | Unlock The Opportunity Scan Planet required
The Opportunity Scannable World required Unavailable with counter Scan Planet | |||
 |
-300 Manufacturing Cost | Technology Required:
Race Trait Required:
Planet Improvement Required:
|
