1

Earth-like

2

Mostly Animals

3

Mostly Plants

4

Mostly Microbes

5

Mostly Artificial

6

Mostly Aerial

7

Mostly Surface

8

Mostly Subsurface

9

One Predator

10

Multiple Predators

11

One Prey

12

Multiple Prey

13

One Parasite

14

Multiple Parasites

15

One Pathogen

16

Multiple Pathogens

17

One Symbiote

18

Multiple Symbiotes

19

Re-roll (dice="1d18") and Re-roll (dice="1d18")

20

Re-roll (dice="1d18"), Re-roll (dice="1d18") and Re-roll (dice="1d18")