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A steamspring microformer.

Terraforming means changing a planet's environment drastically.

Players can terraform planets using terraformers and microformers, placeable objects which change the primary biome of a planet or add a minibiome to an area of a planet. These objects are not available to players until after they've cleared the main story.

Once placed, terraformers and microformers will slowly change the area around them to the biome type suggested by their name. These items only function if they are placed far enough away from regions being actively terraformed - if they are placed too close, they will not begin terraforming.


Terraformers are reusable devices crafted using a Terraforge, a powerful assembly station only at the end of Ancient Vaults. Each Terraformer requires 3000 Ancient Essence, collected from the vault, as well as 50 of either Venom Samples, Static Cells, Scorched Cores or Cryonic Extracts, depending on the dominant element of the terraformer's biome.

After placing the terraformer on the planet surface (it will not work if placed underground or in the atmosphere or space layers), players can interact with it to see a slider UI. This interface allows players to use Ancient Essence collected from Ancient Vaults to terraform the planet's primary biome. An indicator on the slider will show at what point the background layer (parallax) will change over to the new biome type. Entire planets must be terraformed in stages - every time a Terraformer completes its "cycle", you must move the slider once more to make it extend its reach. At least half of the planet's entire surface must be terraformed to the desired biome before the planet type will convert to that of the desired biome.

After terraforming the planet it will take on all the attributes of the new biome - monsters, weather, and natural objects. Including removing a moons spooked effect when terraforming a moon. The planet's gravity, Tier, underground composition, dungeons, microdungeons and outpost gates will not change. The planet description in the navigation panel on the player's ship will indicate that it's been radically changed through terraforming. There is no risk of meteor weather types showing up on fully terraformed planets, even if to volcanic or scorched.

The planet appearance in the nav console and from the ship will match whatever the biome has been changed to.


Microformers won't change the entire biome of a planet, but rather lay down a minibiome in the area around where it's activated. Unlike terraformers, these can be placed almost anywhere (except?) on a planet, including underground and on asteroids above the planet. They do not change the background of the planets or moons on which they are activated.

Microformers are single-use. Once they have been used to terraform an area, they will deactivate. Mining a deactivated microformer will destroy it without dropping anything.

Microformers are not crafted using a Terraforge, but instead have a 1/2 chance to drop from guardian bosses at the end of Ancient Vaults, as well as a very small chance (approximately 0.2% chance for each of 10 chances) of dropping from Ancient Essence Chests in place of one or more of the Essence Bursts. When a microformer does drop, the type is randomly selected, so players may need to kill a few guardians or open a lot of chests to find a specific one.


A native Moon Biome terraformed using a Snowy Terraformer and a Steamy Microformer. Notice the Crystal Erchius Fuel left from the original biome.