1

Earth-like

2

Shorter Days/Nights

3

Longer Days/Nights

4

Dimmer Sun(s)

5

Brighter Sun(s)

6

Farther Moon(s)

7

Nearer Moon(s)

8

Fewer Meteors

9

More Meteors

10

Higher Cosmic Radiation

11

Lesser Cosmic Radiation

12

Higher Gravity

13

Lesser Gravity

14

No Moons

15

Two or More Moons

16

Two or More Suns

17

Planar Cosmology

18

Creationist Cosmology

19

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

20

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