An Astro is the name given to any celestial body in Astro Empires. Planets, Moons and Asteroids are examples of Astros in AE. This page is to cover the basics of what is an Astro, what types there are and where you might find one.

What do you do with AstrosEdit

Astros are the building blocks of your empire. You build your bases on Astros which become your territory. It is not possible to have more than one player colonise a single Astro but multiple players can be in the same system which can make wars much more interesting.

Each type of Astro has its own unique characteristics which can make them desirable for some uses while untouchable for others. Knowing the difference between which Astros are good for what can make all the difference when starting in the game.


An Astro's location is a series of numbers that look like this: B11:22:33:45. The "B" signifies the server in which the Astro is located, in this case Beta Server. The "11" signifies the galaxy, the "22" signifies the region, and "33" signifies the system. "4" indicates which orbital the Astro is in, and "5" denotes its position within that orbital. For more information on how the universe and galaxies are set out look at the Celestial Map.

Unknown AstroEdit

An unknown astro is an astro without any physical characteristics except for solar energy.

These are astros which are located in regions you have not visited. Once one of your ships parks in a region all of the astro details are visible to you. 

The exception is guild bases, which you can always view.

Astro StatsEdit

Each Astro has its own set of stats. These are determined by the type of Astro, whether it is a planet, Asteroid or Moon and its Orbital. There are 146 possible combinations of Astro type, terrain, and orbit.  For more information on each of the planet types see the Astros section.


The stats of one of many astros


Area is the amount of space you have on your Astro. Each building with the exception of a couple of orbital structures take up 1 unit of area. Area can be anything from 65 to 95 depending on what type of Astro you have chosen. Usable area can be expanded as you can use Terraform and Multi-level Platforms to increase the space on your Astro.


Solar is the amount of power your planet gets from your systems sun. This can be utilised by Solar Plants into Power which you can use to keep your base running. The solar rating of your base is dependent on its Orbital. On the first orbital its 4, 3 in the second and continues like this until 0. There is no way to improve the base Solar of your planet.


Fertility is the amount your base's population will rise with each level of Urban Structures. Every ground structure you build on your Astro takes up a single population (Except Terraform, Multilevel Platforms). ‘Biosphere Modification’ can increase/boost your fertility. Astros in the second and third orbitals get +1 fertility.


Metal is the amount your base's Production and Construction will rise with each level of Metal Refineries’. The Metal Refineries will make up the core of your base. Metal is dependent on the planet selection you make, and can vary from 1 to 3 metal. There is no way to improve the base Metal of your planet.


Gas is the amount of power your planet gets from the gas buried deep in its core. This can be utilized by Gas Plants into Power which you can use to keep your base running. The Gas rating of your base is dependent on its Orbital and the type of planet you have selected, varying from 1 to 4. Planets in the 4th and 5th orbital get +1 to Gas. There is no way to improve the base Gas of your planet.


Crystals are a precious resource on your planet that can be utilized for an economic boost. With each level of Crystal Mines your economy will be raised by the value of the Crystals. The amount of Crystals on your planet is dependent on which type of planet you choose and can be from 0 to 3. Crystal 3 astros are very rare in the universe. There is no way to improve the base Crystal of your planet.

Planets vs MoonsEdit

All types of Astros, except Asteroids, have two sub-types: Planet and Moon. Planets have 9-12 more area than the moon of the same type. However moons get a 50% discount of Planetary Rings and Planetary Shields. This makes defense a lot cheaper and quicker to build up on Moons. However you have less space, which will increase your Terraform and Multi-level Platforms costs. Which to choose? That's up to you. Generally players with upgraded accounts (and no limits on MLP and Terraforms) prefer moons while players on free accounts prefer planets. One additional benefit to a moon is a 25% discount on Biosphere Modification.

Arid Asteroid Craters Earthly
Gaia Glacial Magma Metallic
Oceanic Radioactive Rocky Toxic
Tundra Volcanic Crystalline

Useful LinksEdit

Planetary Guide
TUMs Astro Guide