1

Civilization's Home Planet

2-3

Civilization's Colony

4-5

Uninhabited, but Claimed by Civilization

6-8

Free Colony

9-11

Uninhabited

12

Outpost - Military

13

Outpost - Science

14

Outpost - Mining

15

Outpost - Fueling/Supply

16

Abandoned/Destroyed Colony

17

Robots Only

18

Primitive Natives

19

Secret Base

20

Ancient Ruins