Moons

Moons are the secondary feature of Icarus. Moons are used to mine Deuterium and Metals. Deuterium mines cost 1500 and metal mines cost 600 from 1.2.2.2 to 1.4.0.0.

In all known versions of the game, there are 4 types of moons. These include mineral-rich moons, icy moons, metal-rich moons and rocky moons.

In 1.4, moons have to be colonised by a decision in the planet menu. This takes 100 metal, 4 seconds to do and allows Mining to be done on the closest moon to the planet that wasn't colonised before.

Types
The player can build 5 or 6 deuterium mines and 5 or 6 metal mines
 * Mineral-rich moons

The player can build 1 deuterium mine and 5 or 6 metal mines
 * Metal-rich moons

The player can build 5 or 6 deuterium mines and 1 metal mine
 * Icy moons

The player can build 1 deuterium mine and 1 metal mines
 * Rocky moons

For each or statement, the moon has a size from 0.3 to 0.4 that is randomly selected. The 6 of the or statement is chosen if the size of the moon is over 1/3, or 0.3333... so there is a 2/3 chance that a mineral moon will have a capacity of 6.