Planets

The starting planet Sylva.

Planets are astronomical bodies in Astroneer that the play may travel to, explore and construct bases on. Moons exist as well, but they share the same characteristics as planets, and are treated as such.

There are currently five planets, with two moons. These are, starting from the one closest to the Sun,  Atrox,  Calidor,  Sylva,  Vesania, and  Glacio. The moons,  Desolo and  Novus, orbit Sylva and Vesania, respectively.

Planets are procedurally generated upon creation of a new save, each having unique characteristics, with different types of Flora, Biomes, and Resources. Planets share the same universal resources, while all but Atrox have a Primary and a Secondary resource, which each exists on only two planets. Atrox is unique in having four atmospheric resources, with one being unique to the planet, while Desolo, having no atmosphere, has no atmospheric resources. Research Items and Samples are also different per planet, with different colors, amounts of bytes, and research times.

Planets also have unique size, gravity, length of the day/night cycle, and power generation, with some planets being better for solar power, and others for wind power.

Each planet have the same basic layout of five main layers: the surface, caves, mantle, outer core and inner core. Due to the generation of terrain, some caves can stretch from the surface to the outer core on certain planets, as well as some layers blending together without much distinction, such as on Desolo.

Planets

Planet	Type	Primary	Secondary	Gases	Difficulty	Sun	Wind	Gateway Symbol	Gateway Engine Material
Sylva	Terran	Sphalerite	Malachite	Hydrogen Nitrogen	Easy	Medium	Medium		Quartz
Desolo	Terran Moon	Wolframite	Sphalerite	None	Easy	High	Low		Zinc
Calidor	Arid	Malachite	Wolframite	Hydrogen Sulfur	Medium	Very High	Low		Explosive Powder
Vesania	Exotic	Lithium	Titanite	Hydrogen Nitrogen Argon	Medium	Low	High		Graphene
Novus	Exotic Moon	Hematite	Lithium	Hydrogen Methane	Medium	High	High		Silicone
Glacio	Tundra	Titanite	Hematite	Argon	Hard	Very Low	Very High		Diamond
Atrox	Radiated	None	None	Helium Methane Nitrogen Sulfur	Very Hard	Low	Low		Hydrogen

• Primary resources are found between the first underground layer and the mantle of the planet. Secondary resources are found in mountainous biomes on the surface and the layers under the mantle to the core.

Planet Types

The Planets in Astroneer each have a type associated with them. Each type has varying differences, from the amount of sun to the types of resources that it may contain.

Type	Description	Planet
Terran	Typical lush, Earth-like planet, with plains, mountains, forested hills and gray-blue canyons.	Sylva
Terran Moon	Marked with craters, big and small. The occasional slightly raised mountains spaced between the gray landscape.	Desolo
Arid	Dry and dusty dunes, plantlife typical of a desert. Mesas and flat plains mixed in with the dunes.	Calidor
Exotic	Densely forested hills, heavy abundance of plantlife.	Vesania
Exotic Moon	Sparsely forested, with canyons and craters marking the surface.	Novus
Tundra	Cold and icy, with small hot spots of life, surrounded with tall glaciers, with steep drops to the icy plains below.	Glacio
Radiated	Toxic wastelands, with deep yellow canyons and tall, swiss cheese-like mountains. Abundance of hazardous plantlife and lacking any primary or secondary resources.	Atrox

Landing Zones

Landing Zones are locations on each planet that a player may land on using a Shuttle. Landing zones are marked with a sphere when viewed in orbit around the planet, allowing the player to select the zone to land in that location.

Landing Zones appear naturally at the start of the game, or from the use of a Landing Pad. If a Landing Pad is used in or near another landing zone, they may overlap and the player may have trouble selecting the proper zone to land in. Landing Pads do not have Beacons, so they may be hard to distinguish from naturally occurring Landing Zones. In multiplayer, a passenger is also able to select a landing zone to land on, not only the person in the main seat.

Notes

• Each planet has a maximum height that players can build or fly up to using the Hydrazine Jet Pack. This limit extends to the top of the cloud layer of each planet.

Trivia

• Some of the planets are loosely based on the Solar System. Sylva and Desolo are both based on Earth and the Moon, Atrox is based on the toxicity of Venus, Calidor on Mars, and Glacio could be based on either Uranus or Neptune, as both have icy cores. Vesania and Novus could be based on Jupiter or Saturn's moons.

Media

• 

  Astroneer Solar System, not to scale

• 

  Planetary and Solar System Orientation Guide, not to scale.

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  Landing zones on Terran (Pre 1.0)