| Altan Citadel | |
| Type: | variable |
| Build Cost: | base: 200/32/32/32/320 (varies by type) |
| Maintenance Cost: | base: 40/4/4/4/40 (varies by type) |
| Movement Range: | 1 |
| Attack Range: | 1 |
| Attack Power: | 80 |
| Defense Power: | 70 |
| Motherships act as mobile planets. They can produce and store units and have high defense. | |