Io

Io

Io is the innermost of Jupiter's four Galilean moons and the most volcanically active body in the Solar System. Its surface is covered with sulfur compounds, giving it a distinctive yellow-orange-red coloration. The game features 9 habitation sites on Io.

Basic Information

Parameter	Value
Diameter	3,660 km
Orbits	Jupiter
Orbital Period	1.77 Earth days
Distance from Jupiter	421,700 km
Atmosphere	Very thin, primarily sulfur dioxide
Habitation Sites	9
Satellites	None
Available Orbits	LowIoOrbit MediumIoOrbit HighIoOrbit

Mining Sites

Notes:

• Negative values are not a bug, the game actually sets the median to a negative value to make it incredibly unlikely for the site to have a positive mine output. But note that the actual mined amount cannot actually be negative.
• Blank values indicate that the site can never produce this resource. In contrast, 0 indicates that there is still up to 50% chance for the site to produce the resource.
• Values shown do not take into account the final capping of the Noble Metals output to just 1/2 or 1/3 of the Base Metals output.
• Top 50% Mean is the average value of the top 50% of possible rolls. It is also a much looser estimate than the median because it cannot handle edge cases such as where the mininum value is too close to the median value.

MedianTop 50% Mean

Site Name	Parent Body	Mining Profile	Max Hab Tier	Median Resources (after Mass/Density Modifiers)
Chalybes Regio	Io	Sulfurous Planetoid	4		50	50	20	0
Bactria Regio	Io	Sulfurous Planetoid	4		50	50	20	0
Colchis Regio	Io	Sulfurous Planetoid	4		50	50	20	0
Lei-Kung Fluctus	Io	Sulfurous Planetoid	4		50	50	20	0
Mycenae Regio	Io	Sulfurous Planetoid	4		50	50	20	0
Tarsus Regio	Io	Sulfurous Planetoid	4		50	50	20	0
Media Regio	Io	Sulfurous Planetoid	4		50	50	20	0
Amaterasu Patera	Io	Sulfurous Planetoid	4		50	50	20	0
Bosphorus Regio	Io	Sulfurous Planetoid	4		50	50	20	0
Total: 9 Hab Sites				0	450	450	180	0

Site Name	Parent Body	Mining Profile	Max Hab Tier	Estimated Top 50% Mean Resources (after Mass/Density Modifiers)
Chalybes Regio	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Bactria Regio	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Colchis Regio	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Lei-Kung Fluctus	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Mycenae Regio	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Tarsus Regio	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Media Regio	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Amaterasu Patera	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Bosphorus Regio	Io	Sulfurous Planetoid	4		55	63.333	26.667	0.25
Total: 9 Hab Sites				0	495	570	240	2.25

Strategic Value

Despite its extreme volcanic activity, Io offers valuable resources. However, operations on Io must contend with intense radiation from Jupiter's magnetosphere.

SPOILERS INSIDE!
Human expansion to the Jovian system often prompts a violent Alien response.