52
physics
× 4 |
14
seasons
|
8
underwater
|
0
apocalypse
× 2 |
47
science-based
× 11 |
14
orbital-mechanics
|
7
society
× 4 |
0
intelligence
|
45
ragnarok
× 2 |
12
weapons
|
7
ethics
|
0
avian
|
45
religion
|
12
materials
|
7
games
|
0
colonies
|
45
solar-system
|
12
engineering
|
6
black-holes
× 2 |
0
earth-like
|
36
reality-check
× 7 |
9
names
|
6
gravity
|
0
politics
|
33
space
× 6 |
9
language
|
4
technology
× 2 |
0
post-apocalypse
|
25
planets
× 3 |
8
evolution
× 2 |
4
technological-development
|
0
psychology
|
23
biology
× 6 |
8
creature-design
× 2 |
4
civilization
|
0
reproduction
|
15
flora
|
8
climate
|
1
science-fiction
|
|
14
astronomy
× 4 |
8
terraforming
|
1
magic
|
overactor
