DETERMINE HABITABILITY

The Main world will typically be more habitable than all the succeeding worlds created. Each succeeding world will be much farther away from the jump point and main world.

After the Main World, all succeeding worlds have Dis +1 in their Habitability rolls

First Roll to Determine Atmospheric Pressure.

Roll to Determine Temperature

Roll to Determine if the World has a Type of Hazzard.

Roll to Determine the Hazard Intensity.

Roll to Determine the Biochemical Resources.

Determine the PPM (Primary Population Modifier) with Planet Size and Bio Chemical resources.

Determine the SPM (Secondary Population Modifier) with the

Atmospheric Pressure,

World Temperature

Type of Hazard

Hazard Intensity

Biochemical Resources,

Determine the Position.

Determine Atmospheric Pressure Table

This 2D6 roll determines the surface Atmospheric pressure of the World.

2d6	Atmospheric Pressure	Habitability
<1	Crushing (TL9)	-2.5
2-5	Dense (TL8)	-2
6-8	Trace (TL8)	-1.5
9-11	Thin (TL7)	-1
12	Average (Earth; TL0)	0

Average Atmospheric Pressure

This represents the range of atmospheric pressures that a human being can tolerate unaided by technology 0.5 to 3 atmospheres of pressure (7.3 to 43.5psi). With humans it is ideal for this to be 1 atmosphere (14.7psi). For people to live there, the amounts of oxygen and neutral compounds I such atmospheres may have to be proportionally adjusted based on pressure.

What Are the Limits of Human Survival? | Human Tolerance | Live Science

Thin Atmospheric Pressure

This pressure level requires that a human be wearing a pressurized suit so as not to suffer great physical harm and die. This sort of atmosphere is thick enough to still possesses weather phenomena. Mars is considered to have “Thin Atmospheric Pressure” because it still has dust storms and weather.

Trace Atmospheric Pressure

There is no weather or noticeable atmosphere on the planets of this sort. Survival in such a planet would require use of Environmental Suits rated for a Vacuum.

Dense Atmospheric Pressure

This is the level of atmospheric pressure that can only be handled by TL10 Environmental suits and by special habitats and vehicles. This is atmospheric pressure of 3 to 136 atmospheres (2000 psi).

Venus’s atmospheric pressure on its surface is 90 atmospheres. The higher Mountains and Plateaus on such worlds would probably have tolerable atmospheric pressure for humans. Maxwell Montes on Venus; at 11km above its mean radius; would have 47 atm of pressure. 50-55km above Venusian Atmosphere would be habitable if there was a means of protection from the 75C temperature.

https://en.wikipedia.org/wiki/Atmosphere_of_Venus

Crushing Atmospheric Pressure

This is an amount of pressure that would necessitate the use of unmanned drones and other very specialized equipment to explore. Typically, this means over 136 atmospheres of pressure. The Mariana trench can have up to 1,000 atm of or 14,695 psi. Planets with crushing atmospheres can still be inhabited by civilizations using at TL9+ using buoyant habitats or the like.

Jupiter is considered to have a “crushing atmosphere”.

Jupiter’s doesn’t have a firm “surface” beneath its atmosphere to touch down on. Instead, it is all “atmosphere”, and its surface is defined as the part of it with 1 bar pressure or 9.8 atm with a temperature of 340K/66C/152.33F; which is 50km above the visible Ammonia clouds. At the 0.1bar/1atm pressure of Jupiter, its temperature is around -261.67F/110K/-163.15C at 320 kilometers from the “surface”. It gets hotter as you go higher. Jupiter has atmospheric pressure so great it reaches the 4.8 million atmospheres needed to form metallic hydrogen.

Determine Temperature Table

Roll 2D6 for the World’s Temperature.

2d6	Temp	Habitability
<2	Inferno (TL8)	-2
3-6	Hot (TL7)	-1.5
7-10	Freezing (TL7)	-1
11	Cold (TL6)	-0.5
>12	Average (Earth; TL0)	0

+1 to roll if Dense Atmosphere.

+2 to roll if Crushing Atmosphere.

-1 to roll if Thin Atmosphere.

-2 to roll if Trace Atmosphere.

Average Temperature World

This is the sort of world found in the optimistic habitable zone of the solar system. It is similar to earth in the temperature range -25C to 45C, averaging at 16C.

Placement: Habitable Zone.

Cold Temperature World

This is the sort of world found around the Frostline of the solar system or past it. These worlds would still have some heated areas at its most sun-exposed regions, and/or due to greenhouse effect, tidal heating (friction of the worlds composition) and geothermal heat. It requires specialized technology, TL6, to be able to survive in such a world, but most of space also requires his level of technology to be in. The temperature range of this would be -60C/-80F to -140C/-220F.

Mars would be a Cold World.

Placement: Cold Zone.

Hot Temperature World

This is the sort of world found is at the edge between a solar system’s Habitable and Hot zones. The temperature range of these worlds are 30C to 100C.

Earth with a runaway greenhouse effect can become a Hot Temperature World.

Placement: between Habitable zone and Hot Zone.

Freezing Temperature World

This would be the sort of world that has no significant source of heat. This is also the default of any world that is beyond the frostline and has no atmosphere. Whatever heat exists there comes from things artificially placed on that world.

Saturn’s moon, Titan, is a frozen world.

Placement: Cold Zone.

Inferno Temperature World

These sorts of worlds are hotter than the 100C/212F. Most, but not all, have their atmospheres stripped away by their sun.

Venus and Mercury are Inferno Worlds.

Placement: Infernal Zone.

Determine Hazard Type Table

Roll 2D6 to determine if there are any Hazards in the Atmosphere or surface of the World.

2d6	Hazard	Habitability
<2	Radioactive	-1.5
3-4	Toxic	-1.5
5-6	Biohazard	-1
7	Corrosive	-1
8-9	Polluted	-0.5
>10	None	0

Biohazard

These are viruses or microorganisms that are actively attempting to inhabit and feed on hosts. Unlike the other hazards, biohazards can grow and cascade out of control and are probably contagious.

Radioactive

This means that the planet’s surface has an unhealthy level of radiation; caused, perhaps, by solar radiation penetrating the atmosphere, an overabundance of radioactive resources, or radioactive fallout. (see CE SRD p165). See Radiation Exposure Table, Vacc Suit Table, HazMat Suit Table.

Corrosive

This means that the presence of Acid or Base elements and compounds in the atmosphere makes it corrosive. Most environmental suits and enclosed habitats can survive mild corrosives. Specialized building materials and environmental suits are needed for moderate or highly corrosive atmospheres.

Toxic

Poisonous compounds in the atmosphere render the world uninhabitable or a serious health hazard requiring the use of fully sealed habitats and suits.

Polluted

The Polluted condition is similar to having a toxic or corrosive atmosphere but these hazards are usually not so truly ubiquitous as to cover the entirety of the world. Mildly polluted atmosphere requires wearing of filters, suits, and goggles.

Determine Hazard Intensity Table

This determines the degree of Hazard Intensity.

2d6	Intensity	Habitability
<2-3	Intense (TL9)	-2
4-6	High (TL8)	-1.5
7-8	Serious (TL7)	-1
9-10	Mild (TL6)	-0.5
≥11-12	Very Mild (TL11)	0

Determine Biochemical Resources Table

This determines how much water, oxygen, and other elements needed for human life are found there.

2d6	Biochemical Resources	Habitability
2	Scarce (TL8)	-5
3-4	Rare (TL7)	-4
5-7	Uncommon (TL4)	-3
8-11	Abundant	0
12	Inexhaustible	+5

Mass Habitability Modifier Table

Habitability Score is a Population roll modifier.

Planet	Habitability
<0.1 EM	0
0.2 EM	1
0.3 EM	2
0.5 EM	3
0.7 EM	4
1 EM	5
1.5 EM	6
2 EM	7
3 EM	8
5 EM	9
≥7 EM	10

Earth Population is 10^9

Tech Level Modifier

The better its Technology, the more infrastructure a world has to support its population.

Tech Level	Habitability
0
1	1.5
2
3	2.5
4	3
5	3.5
6	4
7	4.5
8	5
9	5.5
10	6
11	6.5
12	7
13	7.5
14	8
15	8.5
16	9
17	9.5
18	10