Biome

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This article may contain outdated information that is inaccurate for the current version (Rocketry Upgrade). It was last updated for the no_version.


There are several different biomes in Oxygen Not Included. Each contains different resources, creatures, and plants, and are mostly separated by veins of Abyssalite. Although each biome has a color shading applied to it that stays after the biome is mined out, there are no special properties beyond the contents of the biomes (so, for example, the Frozen biome does not cool itself, only starting out cold and cooling through Wheezeworts, which can be removed).

Default Biomes Contents[edit | edit source]

Biome Location Metal Rock Other Solids Liquid Gases Life Border
Temperate Spawning area (Map center) Copper Ore.png Sand stone.png Dirt.pngAlgae.pngSand.pngCoal.pngFertilizer.pngOxylite.png Water-icon.png Oxygen-icon.pngCarbon-dioxide-icon.png Hatch.pngShine Bug.png
Bristle Briar.pngBristle Blossom.pngMealwood.pngMuckroot.png
Granite.pngObsidian.png
Swamp Near Spawn Gold Amalgam.png Sedimentary Rock.png Slime.pngAlgae.pngClay.pngSteam Geyser.pngNatural Gas Geyser.pngOxylite.png Polluted Water.png Polluted-oxygen-icon.pngCarbon-dioxide-icon.png Puft.pngPacu.pngThimble Reed.pngDusk Cap.png Abyssalite.pngNeutronium.png
Caustic Near Spawn Iron Ore.png Igneous Rock.png Phosphorite.pngAlgae.pngBleach Stone.pngCoal.pngSteam Geyser.pngNatural Gas Geyser.pngChlorine Geyser.png Oxylite.png None Chlorine-icon.pngHydrogen-icon.png Morb.pngDrecko.pngPincha Pepper.pngBalm Lily.png Abyssalite.pngNeutronium.png
Frozen Near spawn, but not adjacent Wolframite.png Granite.png Ice.pngPolluted Ice.pngSnow.png None Oxygen-icon.pngCarbon-dioxide-icon.png Wheezewort.pngSleet Wheat.png Abyssalite.pngNeutronium.png
Oil Above Volcanic Iron Ore.png Igneous Rock.png
Granite.png
Diamond.pngObsidian.pngFossil.pngOil Reservoir.png Crude Oil.png Carbon-dioxide-icon.pngNatural-gas-icon.png Slickster.png Abyssalite.pngNeutronium.png
Volcanic Bottom None None Neutronium.pngAbyssalite.png Magma.png None None Neutronium.png
Space Upmost Iron.png Mafic Rock.png Regolith.pngGranite.pngIgneous Rock.png None None None No-Go Zone

The above table shows only what is primarily generated in these biomes; there are some exceptions:

Helicona Biomes Contents[edit | edit source]

Biome Metal Rock Other Solids Liquid Gases Life Border
Temperate
(Spawning area)
Copper Ore.png Sand stone.png Dirt.pngAlgae.pngSand.pngCoal.pngFertilizer.pngOxylite.png Water-icon.png Oxygen-icon.pngCarbon-dioxide-icon.png Hatch.pngShine Bug.png
Bristle Briar.pngBristle Blossom.pngMealwood.pngMuckroot.png
Granite.pngObsidian.png
Frozen Wolframite.png Granite.png Ice.pngPolluted Ice.pngSnow.png None Oxygen-icon.pngCarbon-dioxide-icon.png Wheezewort.pngSleet Wheat.png Abyssalite.pngNeutronium.png
Volcanic None None Neutronium.png Magma.png None None Abyssalite.pngNeutronium.png
Electrum Electrum.pngCopper Ore.pngIron Ore.png Granite.pngIgneous Rock.png Diamond.png None Vacuum None Abyssalite.pngNeutronium.png
Space Iron.png Granite.pngMafic Rock.pngIgneous Rock.png Regolith.png None Vacuum None Abyssalite.pngNeutronium.png
Void None None Void.png None None None Neutronium.png

Biome Descriptions[edit | edit source]

Temperate Biome[edit | edit source]

The Temperate Biome is the place where your Duplicants start. It contains clean Water, Dirt, Sandstone, Sand, Coal, Algae, and Copper (which provides a small decor boost). The Muckroot, Mealwood and Bristle Blossom plants growing naturally here will provide food until you research other Food options. You are guaranteed to start with at least five accessible tiles of Oxylite, which should produce sufficient Oxygen for you to survive until you have researched some Oxygen generation structures, and Algae found here will cover you for about 20 or more cycles after that. Shinebugs and Hatches are found only in this biome. The Temperate biome is bordered by a mixture of Granite and Obsidian, and is located in the center of the map, surrounded by the other biomes.

Swamp Biome[edit | edit source]

Swamps are warmer and have cavities full of Polluted Oxygen, often under high pressure. Pools of Polluted Water and dug up Slime will add even more Polluted Oxygen. You can find more Algae here, useful if you still need it for Oxygen generation, and all that Slime can be converted to Algae, too. The primary rock is Sedimentary Rock, which can be mined quickly due to its low hardness. The Gold Amalgam found here is the most heat-resistant Raw Metal. Dusk Caps and Thimble Reed grow here, the latter of which is crucial for the production of Clothes.

Caustic Biome[edit | edit source]

This biome is even warmer than the Swamp Biome, and here you can find Pincha Pepper plants that produce Pincha Peppernut for your Cooking Station, as well as Balm Lilies which can be used to make Vitamin Chews. The Chlorine and Hydrogen gases in the cavities here are unbreathable. The Bleach Stone found here is useful to keep your Duplicants happy with a Hand Sanitizer, and Phosphorite is used as a fertilizer for Pincha Pepper. Caustic biomes often have large veins of Coal, Igneous Rock, Algae, and Iron Ore (which has no special properties compared to other Raw Metals). Morbs can be found here as well. In one caustic biome, there will be either a single Chlorine Geyser, the only renewable source of Chlorine, or a second Natural Gas Geyser.Dreckos are often fond in this biome near balm lily and Pincha Peppernut plants.

Frozen Biome[edit | edit source]

In this biome, Duplicants will become stricken with Hypothermia if not wearing a Warm Sweater which can be made in a Textile Factory. The temperature ranges from -20 to -40°C. It contains large amounts of liquifiable Ice, Polluted Ice, and Snow, as well as veins of Granite and Wolframite (both notable for their excellent Heat transfer abilities). For gases, there's Carbon Dioxide and some Oxygen. You can find Sleet Wheat and Wheezewort (plants) here. Frozen Biomes are not generated directly next to Temperate (starting) Biomes as of a recent update.

Oil Biome[edit | edit source]

It is located right above the volcanic biome. The temperature is ~80°C (on the top) and up to 380°C (on the bottom). It contains Crude Oil, Oil Reservoirs, veins of Diamond, Granite, Obsidian and Iron Ore and pockets of Natural Gas and Carbon Dioxide. It is inhabited by Slicksters.

Volcanic Biome[edit | edit source]

Volcanic biomes appear at the very bottom of the map. It only contains liquid Magma (about 1600°C) and Neutronium which can't be destroyed.

Electrum Biome[edit | edit source]

Electrum biome appears on the top of the map in the first Helicona preset and in the second preset, it appears as world border. It contains huge pockets of Electrum and Vacuum. In Helicona 2 preset there occurs Iron Ore and Copper Ore is not completely surrounded by Neutronium.

Space Biome[edit | edit source]

The space biome can destroy all kinds of liquids and gases. It contains Mafic Rock, Regolith and Granite in the upper layers, and Igneous Rock can be found in the lower layers. Meteor Showers can randomly happen and bring refined Iron and Sand in item form and Regolith in block form.
Gases are sucked into the vacuum of space through the open background, and in the absence of gases heat can not dissipate from materials and objects. Adding walls helps to construct rooms that can hold air.


Example of Helicona 1 layout of biomes. (the full map is a bit taller, this image contains most of it)
Example of Helicona 2 layout of biomes. (this is the full map of Helicona 2 world)


Gallery[edit | edit source]