Oxygen Not Included is a colony survival game where you direct a crew of Duplicants, the workers who dig, build and need to breathe. Everything in its world is made of elements, the basic substances that fill each square of the map. They come as solids like rock and metal, liquids like water and oil, and gases like oxygen and steam, and your colony digs, pumps and converts them to keep running. Heat, weight and pressure decide how each one moves, mixes and changes form, so learning them is the key to keeping your colony alive.
Showing 72 of 188 items.
Phase
Solids
Abyssalite
A near-perfect insulator that separates biomes and helps protect builds from heat.
- Material Category
- Miscellaneous
- Specific Heat Capacity
- 4 DTU/g/°C
- Thermal Conductivity
- 0.00001 DTU/(m·s·°C)
- State Changes
- Melts at 3421.85 °C into Molten Tungsten.
- Found or Produced
- Natural veins form boundaries between biomes. Glo Squids excrete it in the Aquatic Planet Pack.
- Main Uses
- The Molecular Forge uses it to make Insulite, and Abyss Bugs can eat it. Soldering Stations also use it for Eco Power Banks.
- Pack
- Base game
Algae
An early oxygen resource for Algae Terrariums and Oxygen Diffusers.
- Material Category
- Organic
- Specific Heat Capacity
- 0.2 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Changes into Dirt at 125 °C.
- Found or Produced
- Algae Distillers make it from Slime. Heating Phyto Oil also produces it, and Blum Lumbs excrete it.
- Main Uses
- Oxygen Diffusers and Algae Terrariums turn it into Oxygen; Sage Hatches and Pacu can eat it.
- Pack
- Base game
Aluminum
A refined metal that conducts heat well in wires, pipes, and buildings.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 0.91 DTU/g/°C
- Thermal Conductivity
- 205 DTU/(m·s·°C)
- State Changes
- Melts at 660.3 °C into Molten Aluminum.
- Found or Produced
- Aluminum Ore occurs naturally in Forest biomes. Metal Refineries and Rock Crushers produce Aluminum from the ore; Smooth Hatches also excrete it. Cooling Molten Aluminum produces Aluminum.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal. It conducts heat well, making it useful for heat-transfer buildings and pipes; Exosuit Forges use it to make Atmo Suits.
- Pack
- Base game
Aluminum Ore
An ore refined into Aluminum for power systems and machinery.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.91 DTU/g/°C
- Thermal Conductivity
- 20.5 DTU/(m·s·°C)
- State Changes
- Melts at 1083.85 °C into Molten Aluminum.
- Found or Produced
- Occurs naturally in Forest biomes.
- Main Uses
- A Metal Ore used by buildings that accept Metal Ore. Metal Refineries refine it into Aluminum and Rock Crushers recover some Aluminum; Smooth Hatches make Aluminum from it, while Stone Hatches produce Coal.
- Pack
- Base game
Amber
Plant Pulverizers turn it into Resin, and it can be used in Window Tiles and Aero Pots.
- Material Category
- Organic
- Specific Heat Capacity
- 1.3 DTU/g/°C
- Thermal Conductivity
- 0.17 DTU/(m·s·°C)
- State Changes
- Melts at 95 °C into Resin 80% + Fossil 20%.
- Found or Produced
- Fed Lura Plants produce Amber.
- Main Uses
- Plant Pulverizers turn it into Resin, and it can be used in Window Tiles and Aero Pots.
- Pack
- The Prehistoric Planet Pack
Basalt
A rugged rock used for construction, Sand, and Stone Hatch food.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 0.25 DTU/g/°C
- Thermal Conductivity
- 2.5 DTU/(m·s·°C)
- State Changes
- Melts at 1256.85 °C into Magma.
- Found or Produced
- Occurs naturally in Abyss biomes.
- Main Uses
- Rock Crushers turn it into Sand, and Stone Hatches can eat it to produce Coal.
- Pack
- The Aquatic Planet Pack
Bleach Stone
Used by Hand Sanitizers and Hot Tubs, and by Geotuners to tune water vents and geysers.
- Material Category
- Sublimator
- Specific Heat Capacity
- 0.5 DTU/g/°C
- Thermal Conductivity
- 4 DTU/(m·s·°C)
- State Changes
- Melts at 668.85 °C into Liquid Chlorine.
- Found or Produced
- Bleach Stone Hoppers make it from Salt and Gold. Squeaky Pufts and Puft Princes excrete it.
- Main Uses
- Used by Hand Sanitizers and Hot Tubs, and by Geotuners to tune water vents and geysers.
- Pack
- Base game
Brackwax
An advanced ingredient for Plastium and faster Transit Tube travel.
- Material Category
- Consumable Ore
- Specific Heat Capacity
- 1.92 DTU/g/°C
- Thermal Conductivity
- 0.15 DTU/(m·s·°C)
- State Changes
- Melts at 159.85 °C into Liquid Naphtha.
- Found or Produced
- Brackwax Gleaners process Brackene into it. Heating Brackene or Ovolene also produces it.
- Main Uses
- Molecular Forges use it to make Plastium. Transit Tube Access can consume it to increase travel speed.
- Pack
- Base game
Brine Ice
A solid cooling material for Ice-E Fans and Tempshift Plates.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 3.4 DTU/g/°C
- Thermal Conductivity
- 2.18 DTU/(m·s·°C)
- State Changes
- Melts at -16.5 °C into Brine.
- Found or Produced
- Occurs in some Ocean and Tundra biome variants. Rhexes excrete it, and cooling Brine produces Brine Ice.
- Main Uses
- Use it in Ice-E Fans for cooling or to build Tempshift Plates.
- Pack
- Base game
Ceramic
A low-conductivity building material that raises overheat limits and decor.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 0.84 DTU/g/°C
- Thermal Conductivity
- 0.62 DTU/(m·s·°C)
- State Changes
- Melts at 1849.85 °C into Magma.
- Found or Produced
- Kilns make it from Clay with Coal, Wood, or Peat. Heating Clay also produces Ceramic.
- Main Uses
- A low-conductivity building material that raises overheat limits and decor; Kilns make it from Clay and fuel.
- Pack
- Base game
Cinnabar Ore
Metal Refineries process it into Mercury; Plug Slugs and Smog Slugs can eat it for Hydrogen.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.386 DTU/g/°C
- Thermal Conductivity
- 4.5 DTU/(m·s·°C)
- State Changes
- Turns into Mercury Gas at 583.5 °C.
- Found or Produced
- Occurs naturally in the Ice Cave Biome on Ceres.
- Main Uses
- Metal Refineries process it into Mercury; Plug Slugs and Smog Slugs can eat it for Hydrogen.
- Pack
- The Frosty Planet Pack
Clay
Used in farming buildings and processed with Coal, Wood, or Peat in a Kiln to make Ceramic.
- Material Category
- Cultivable Soil
- Specific Heat Capacity
- 0.92 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Changes into Ceramic at 926.85 °C.
- Found or Produced
- Occurs naturally in Marsh biomes. Deodorizers produce it from Polluted Oxygen, and Rock Crushers can recover it from Bammoth Patties.
- Main Uses
- Used in farming buildings and Kilns; Hatches can also eat it and excrete Coal.
- Pack
- Base game
Coal
A reliable fuel for power generation, Kilns, and medicine.
- Material Category
- Consumable Ore
- Specific Heat Capacity
- 0.71 DTU/g/°C
- Thermal Conductivity
- 1.25 DTU/(m·s·°C)
- State Changes
- Changes into Refined Carbon at 276.85 °C.
- Found or Produced
- Occurs naturally in Sandstone and Jungle biomes. Hatches excrete it, and heating Peat can also produce it.
- Main Uses
- Burn it in a Coal Generator for power, or use it in a Kiln for Refined Carbon and Ceramic.
- Pack
- Base game
Cobalt
As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 0.42 DTU/g/°C
- Thermal Conductivity
- 100 DTU/(m·s·°C)
- State Changes
- Melts at 1494.85 °C into Molten Cobalt.
- Found or Produced
- Cobalt Ore occurs naturally in Swampy biomes. Metal Refineries and Rock Crushers refine the ore; Smooth Hatches also excrete Cobalt.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Pack
- Spaced Out!
Cobalt Ore
Metal Refineries process it into Cobalt; Rock Crushers can recover some Cobalt from it.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.42 DTU/g/°C
- Thermal Conductivity
- 4 DTU/(m·s·°C)
- State Changes
- Melts at 1494.85 °C into Molten Cobalt.
- Found or Produced
- Occurs naturally in Swampy biomes.
- Main Uses
- Metal Refineries refine it into Cobalt; Rock Crushers recover some Cobalt. Smooth Hatches can eat it and excrete Cobalt, while Stone Hatches excrete Coal.
- Pack
- Spaced Out!
Copper
As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 0.385 DTU/g/°C
- Thermal Conductivity
- 60 DTU/(m·s·°C)
- State Changes
- Melts at 1083.85 °C into Molten Copper.
- Found or Produced
- Copper Ore occurs naturally in Sandstone biomes and geodes, and meteor showers can deposit it. Metal Refineries and Rock Crushers refine the ore; Smooth Hatches also excrete Copper.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Pack
- Base game
Copper Ore
A common ore refined into Copper for power systems and machinery.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.386 DTU/g/°C
- Thermal Conductivity
- 4.5 DTU/(m·s·°C)
- State Changes
- Melts at 1083.85 °C into Molten Copper.
- Found or Produced
- Occurs naturally in Sandstone biomes and in geodes. Some meteor showers deposit it in the Space Biome.
- Main Uses
- A Metal Ore used by buildings that accept Metal Ore. Metal Refineries refine it into Copper and Rock Crushers recover some Copper; Smooth Hatches make Copper from it, while Stone Hatches produce Coal.
- Pack
- Base game
Coquina
A shell-like building material used by Starnacles and Rock Crushers.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 0.8 DTU/g/°C
- Thermal Conductivity
- 1.5 DTU/(m·s·°C)
- State Changes
- Melts at 926.85 °C into Magma.
- Found or Produced
- Occurs naturally in Reef biomes.
- Main Uses
- Starnacles need it to grow; Hatches can eat it, and Rock Crushers turn it into Sand.
- Pack
- The Aquatic Planet Pack
Corallium
Sage Hatches can eat it; Rock Crushers turn it into Lime and Sand.
- Material Category
- Organic
- Specific Heat Capacity
- 0.2 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Changes into Sand at 125 °C.
- Found or Produced
- Occurs in Reef Biomes on Marinea and on planetoids with an equivalent Reef Biome.
- Main Uses
- Sage Hatches can eat it; Rock Crushers turn it into Lime and Sand.
- Pack
- The Aquatic Planet Pack
Corium
A high-heat solid useful for heat transfer in advanced builds.
- Material Category
- Miscellaneous
- Specific Heat Capacity
- 7.44 DTU/g/°C
- Thermal Conductivity
- 6 DTU/(m·s·°C)
- State Changes
- Turns into Nuclear Fallout at 626.85 °C.
- Found or Produced
- Small amounts are produced during Research Reactor meltdowns.
- Main Uses
- Useful for solid-based cooling because of its unusual thermal properties; it cannot be used as a building material.
- Pack
- Spaced Out!
Crushed Ice
A rare ice resource that Ice-E Fans can use for cooling.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 2.05 DTU/g/°C
- Thermal Conductivity
- 2.18 DTU/(m·s·°C)
- State Changes
- Melts at -0.65 °C into Water.
- Found or Produced
- Can be found in small amounts near Anti Entropy Thermo-Nullifiers; it does not appear in standard world generation.
- Main Uses
- Ice-E Fans use it for cooling.
- Pack
- Base game
Crushed Rock
A mineral Hatches can eat to produce Coal.
- Material Category
- Refined Mineral
- Specific Heat Capacity
- 0.2 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at 1409.85 °C into Magma.
- Found or Produced
- Mined from space in Spaced Out! at the Arid Planet destination.
- Main Uses
- Hatches can eat it and excrete Coal; melting it produces Magma that can cool into Igneous Rock.
- Pack
- Base game
Depleted Uranium
A radioactive Refined Metal used in buildings and by radiation systems.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 1 DTU/g/°C
- Thermal Conductivity
- 20 DTU/(m·s·°C)
- State Changes
- Melts at 132.85 °C into Liquid Uranium.
- Found or Produced
- Uranium Centrifuges produce it while enriching Uranium Ore. Radiation Lamps and Manual Radbolt Generators can also produce it. Cooling Liquid Uranium forms Depleted Uranium.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal. Plug Slugs can eat it and excrete Hydrogen.
- Pack
- Spaced Out!
Diamond
Used in Solar Panels and ancient specimen analysis; Radiant Bugs can eat it.
- Material Category
- Miscellaneous
- Specific Heat Capacity
- 0.516 DTU/g/°C
- Thermal Conductivity
- 80 DTU/(m·s·°C)
- State Changes
- Melts at 3926.85 °C into Liquid Carbon.
- Found or Produced
- Diamond Presses make it from Refined Carbon.
- Main Uses
- Used in Solar Panels and ancient specimen analysis; Radiant Bugs can eat it.
- Pack
- Base game
Dirt
Used for farming and basic research, and in recipes such as Mush Bars.
- Material Category
- Cultivable Soil
- Specific Heat Capacity
- 1.48 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Changes into Sand at 326.85 °C.
- Found or Produced
- Occurs naturally in Sandstone and Forest biomes. Composts turn Polluted Dirt into Dirt; heating Algae, Slime, or Fertilizer and boiling Polluted Water can also produce it.
- Main Uses
- Used for farming, basic research, and recipes such as Mush Bars; Hatches can also eat it for Coal.
- Pack
- Base game
Enriched Uranium
Used as fuel in Research Reactors and as an input for Radbolt Generators and Molecular Forge recipes.
- Material Category
- Manufactured Material
- Specific Heat Capacity
- 1 DTU/g/°C
- Thermal Conductivity
- 20 DTU/(m·s·°C)
- State Changes
- Melts at 858.85 °C into Liquid Uranium.
- Found or Produced
- Uranium Centrifuges produce it from Uranium Ore.
- Main Uses
- Used as fuel in Research Reactors and as an input for Radbolt Generators and Molecular Forge recipes.
- Pack
- Spaced Out!
Fertilizer
A crop nutrient used by Farm Stations and in several recipes.
- Material Category
- Agriculture
- Specific Heat Capacity
- 0.83 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Changes into Dirt at 125 °C.
- Found or Produced
- Occurs in Sandstone biomes near Water. Fertilizer Synthesizers make it from Polluted Water, Dirt, and Phosphorite.
- Main Uses
- Used by Farm Stations and as fuel or input in several engines and Blastshot recipes.
- Pack
- Base game
Fossil
A construction material and an important Lime ingredient for Steel production.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 0.91 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at 1338.85 °C into Magma.
- Found or Produced
- Occurs in Oily and Ocean biomes. The Ancient Specimen story trait can produce it from Diamond, and Plant Pulverizers can produce it from Amber.
- Main Uses
- Rock Crushers turn it into Lime for Steel production; it is also used to build Fossil Blocks.
- Pack
- Base game
Frozen Brackene
A frozen liquid that Ice-E Fans can use for cooling.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 3.4 DTU/g/°C
- Thermal Conductivity
- 2.18 DTU/(m·s·°C)
- State Changes
- Melts at -16.5 °C into Brackene.
- Found or Produced
- Cooling Brackene produces Frozen Brackene.
- Main Uses
- Ice-E Fans use it for cooling.
- Pack
- Base game
Frozen Mucin
A frozen material with little direct use in normal colony play.
- Material Category
- Organic
- Specific Heat Capacity
- 3.05 DTU/g/°C
- Thermal Conductivity
- 1 DTU/(m·s·°C)
- State Changes
- Melts at -10 °C into Mucin.
- Found or Produced
- Cooling Mucin produces Frozen Mucin.
- Main Uses
- -
- Pack
- The Aquatic Planet Pack
Frozen Ovolene
A frozen liquid that Ice-E Fans can use for cooling.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 3.4 DTU/g/°C
- Thermal Conductivity
- 2.18 DTU/(m·s·°C)
- State Changes
- Melts at -16.5 °C into Ovolene.
- Found or Produced
- Cooling Ovolene produces Frozen Ovolene.
- Main Uses
- Ice-E Fans use it for cooling.
- Pack
- The Aquatic Planet Pack
Frozen Phyto Oil
A frozen industrial oil with little direct use in normal colony play.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 0.9 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at -33.15 °C into Phyto Oil.
- Found or Produced
- Cooling Phyto Oil produces Frozen Phyto Oil.
- Main Uses
- -
- Pack
- The Bionic Booster Pack
Frozen Squid Ink
A frozen liquid that Ice-E Fans can use for cooling.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 2 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at -20.65 °C into Squid Ink.
- Found or Produced
- Cooling Squid Ink produces Frozen Squid Ink.
- Main Uses
- Ice-E Fans use it for cooling.
- Pack
- The Aquatic Planet Pack
Fullerene
Used by Emulsifiers and Molecular Forges to make Super Coolant and other advanced materials.
- Material Category
- Rare Resource
- Specific Heat Capacity
- 0.95 DTU/g/°C
- Thermal Conductivity
- 50 DTU/(m·s·°C)
- State Changes
- Melts at 3926.85 °C into Liquid Carbon.
- Found or Produced
- Molecular Forges produce it for advanced recipes.
- Main Uses
- Used by Emulsifiers and Molecular Forges to make Super Coolant and other advanced materials.
- Pack
- Base game
Galena
Metal Refineries process it into Lead; Rock Crushers can recover some Lead from it.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.21 DTU/g/°C
- Thermal Conductivity
- 2.3 DTU/(m·s·°C)
- State Changes
- Melts at 1114 °C into Molten Lead 87% + Sulfur 13%.
- Found or Produced
- Occurs naturally in Abyss biomes.
- Main Uses
- Metal Refineries process it into Lead; Rock Crushers can recover some Lead from it.
- Pack
- The Aquatic Planet Pack
Glass
A clear building material for Solar Panels, Windows, and advanced buildings.
- Material Category
- Manufactured Material
- Specific Heat Capacity
- 0.84 DTU/g/°C
- Thermal Conductivity
- 1.11 DTU/(m·s·°C)
- State Changes
- Melts at 1426.85 °C into Molten Glass.
- Found or Produced
- Glass Forges make Molten Glass from Sand; Shatter Floxes can also be sheared for Glass. Cooling Molten Glass produces Glass.
- Main Uses
- Used to build Solar Panels and in Exosuit Forge recipes.
- Pack
- Base game
Gold
As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 0.129 DTU/g/°C
- Thermal Conductivity
- 60 DTU/(m·s·°C)
- State Changes
- Melts at 1063.85 °C into Molten Gold.
- Found or Produced
- Gold Amalgam occurs naturally in Marsh biomes. Metal Refineries and Rock Crushers refine it into Gold; Smooth Hatches also excrete Gold.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Pack
- Base game
Gold Amalgam
A Metal Ore that adds decor and an overheat bonus to buildings.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.15 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at 1063.85 °C into Molten Gold.
- Found or Produced
- Occurs naturally in Marsh biomes, and meteor showers can deposit it in the Space Biome. Regal Bammoth Crests can also yield it in a Rock Crusher.
- Main Uses
- A Metal Ore that adds decor and an overheat bonus to buildings. Metal Refineries refine it into Gold, and Rock Crushers recover some Gold.
- Pack
- Base game
Granite
A decor-rich construction material with high thermal conductivity, useful in heat-transfer builds and radiant pipes.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 0.79 DTU/g/°C
- Thermal Conductivity
- 3.39 DTU/(m·s·°C)
- State Changes
- Melts at 668.85 °C into Magma.
- Found or Produced
- Occurs around the starting Sandstone or Forest biome, and also in Tundra, Oily, and Barren biomes.
- Main Uses
- A decor-rich construction material with high thermal conductivity, useful in heat-transfer builds and radiant pipes.
- Pack
- Base game
Graphite
Molecular Forges combine it with Sulfur and Aluminum to make Fullerene.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 0.71 DTU/g/°C
- Thermal Conductivity
- 8 DTU/(m·s·°C)
- State Changes
- Changes into Refined Carbon at 276.85 °C.
- Found or Produced
- Found in the Aquatic Biome on the Water Asteroid in Spaced Out!.
- Main Uses
- Molecular Forges combine it with Sulfur and Aluminum to make Fullerene.
- Pack
- Spaced Out!
Gum Wood
Ethanol Distillers and Kilns can process it; Wood Burners use it as fuel, and Plant Pulverizers turn it into Latex.
- Material Category
- Organic
- Specific Heat Capacity
- 2.3 DTU/g/°C
- Thermal Conductivity
- 0.22 DTU/(m·s·°C)
- State Changes
- Turns into Carbon Dioxide at 600 °C.
- Found or Produced
- Gum Palms produce it when grown with Sulfur.
- Main Uses
- Ethanol Distillers and Kilns can process it; Wood Burners use it as fuel, and Plant Pulverizers turn it into Latex.
- Pack
- The Aquatic Planet Pack
Ice
A reusable cooling material for Ice-E Fans, Ice Blocks, and cold-weather farming.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 2.05 DTU/g/°C
- Thermal Conductivity
- 2.18 DTU/(m·s·°C)
- State Changes
- Melts at -0.65 °C into Water.
- Found or Produced
- Occurs in Tundra biomes. Ice Makers produce it from Water; cooling Water, Salt Water, or Nectar also produces Ice.
- Main Uses
- Ice-E Fans use it for cooling; Ice Blocks and Alveo Vera farming also use it.
- Pack
- Base game
Igneous Rock
A common construction rock that helps insulate buildings and pipes.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 1 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at 1409.85 °C into Magma.
- Found or Produced
- Occurs naturally in Jungle, Oily, Tundra, and Sandstone biomes. Cooling Magma produces it.
- Main Uses
- A common insulating construction material; Rock Crushers turn it into Sand and Stone Hatches can eat it.
- Pack
- Base game
Insulite
Used for highly insulated buildings and can be processed in a Rock Crusher.
- Material Category
- Manufactured Material
- Specific Heat Capacity
- 5.57 DTU/g/°C
- Thermal Conductivity
- 0.00001 DTU/(m·s·°C)
- State Changes
- Melts at 3621.85 °C into Molten Tungsten 85% + Sour Gas 15%.
- Found or Produced
- Molecular Forges make it from Abyssalite, Isosap, and Reed Fiber.
- Main Uses
- Used for highly insulated buildings and can be processed in a Rock Crusher.
- Pack
- Base game
Iridium
As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 0.131 DTU/g/°C
- Thermal Conductivity
- 170 DTU/(m·s·°C)
- State Changes
- Melts at 2445.85 °C into Molten Iridium.
- Found or Produced
- Demoliors leave Iridium deposits when they impact asteroids. Cooling Molten Iridium also produces it.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Pack
- The Prehistoric Planet Pack
Iron
As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 0.449 DTU/g/°C
- Thermal Conductivity
- 55 DTU/(m·s·°C)
- State Changes
- Melts at 1534.85 °C into Molten Iron.
- Found or Produced
- Iron Ore occurs naturally in Jungle and Oily biomes. Metal Refineries and Rock Crushers refine Iron Ore, and Smooth Hatches also excrete Iron.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Pack
- Base game
Iron Ore
Metal Refineries process it into Iron; it can also be used as a building material and in ore-based recipes.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.449 DTU/g/°C
- Thermal Conductivity
- 4 DTU/(m·s·°C)
- State Changes
- Melts at 1534.85 °C into Molten Iron.
- Found or Produced
- Occurs naturally in Jungle and Oily biomes. Rust Deoxidizers produce it from Rust and Salt; Orehulls can also yield it.
- Main Uses
- A Metal Ore used by buildings that accept Metal Ore. Metal Refineries refine it into Iron and Rock Crushers recover some Iron; Smooth Hatches make Iron from it, while Stone Hatches produce Coal.
- Pack
- Base game
Isosap
An advanced ingredient for Insulite, Visco-Gel, and other materials.
- Material Category
- Rare Resource
- Specific Heat Capacity
- 1.3 DTU/g/°C
- Thermal Conductivity
- 0.17 DTU/(m·s·°C)
- State Changes
- Melts at 200 °C into Liquid Naphtha.
- Found or Produced
- Experiment 52B produces Sap; heating Sap produces mostly Steam and some Isosap.
- Main Uses
- Used by Molecular Forges and Emulsifiers to make Insulite, Visco-Gel, and other advanced materials.
- Pack
- Base game
Lead
As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 0.128 DTU/g/°C
- Thermal Conductivity
- 35 DTU/(m·s·°C)
- State Changes
- Melts at 327.5 °C into Molten Lead.
- Found or Produced
- Occurs naturally in Oily biomes. Galena occurs in Abyss biomes; Metal Refineries and Rock Crushers refine it into Lead.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Pack
- Base game
Lime
Used in the Metal Refinery recipe that makes Steel.
- Material Category
- Consumable Ore
- Specific Heat Capacity
- 0.834 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at 1056.85 °C into Magma.
- Found or Produced
- Rock Crushers make it from Fossil and Corallium; fed Beakons also produce it.
- Main Uses
- Used in the Metal Refinery recipe that makes Steel.
- Pack
- Base game
Mafic Rock
A construction material that also works well in Insulated Tiles and Insulated Gas Pipes.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 0.2 DTU/g/°C
- Thermal Conductivity
- 1 DTU/(m·s·°C)
- State Changes
- Melts at 1409.85 °C into Magma.
- Found or Produced
- Occurs naturally in Space and Rust biomes.
- Main Uses
- A construction material that also works well in Insulated Tiles and Insulated Gas Pipes.
- Pack
- Base game
Mud
Sludge Presses turn it into Dirt and Water; it can also be used in Mud-to-Dirt recipes.
- Material Category
- Organic
- Specific Heat Capacity
- 0.83 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Turns into Steam 60% + Dirt 40% at 99.69 °C.
- Found or Produced
- Occurs naturally in Swampy biomes. Grubgrubs produce it after eating Sulfur or Sucrose.
- Main Uses
- Sludge Presses turn it into Dirt and Water; it can also be used in Mud-to-Dirt recipes.
- Pack
- Spaced Out!
Neutronium
An unmineable natural material that forms asteroid borders and supports ruins.
- Material Category
- Special
- Specific Heat Capacity
- 0 DTU/g/°C
- Thermal Conductivity
- 0 DTU/(m·s·°C)
- State Changes
- Melting point: 9726.85 °C; it cannot be melted in normal play.
- Found or Produced
- Forms natural borders around asteroids and the four tiles beneath geysers. Duplicants cannot excavate it in normal play.
- Main Uses
- It forms natural boundaries and supports ruins, but Duplicants cannot mine it.
- Pack
- Base game
Nickel
As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Material Category
- Refined Metal
- Specific Heat Capacity
- 0.44 DTU/g/°C
- Thermal Conductivity
- 91 DTU/(m·s·°C)
- State Changes
- Melts at 1454.85 °C into Molten Nickel.
- Found or Produced
- Nickel Ore occurs naturally in Garden biomes. Metal Refineries and Rock Crushers refine it into Nickel; Smooth Hatches also excrete Nickel.
- Main Uses
- As a Refined Metal, it can be used in any building that accepts Refined Metal.
- Pack
- The Prehistoric Planet Pack
Nickel Ore
An ore refined into Nickel and used to craft early equipment.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.45 DTU/g/°C
- Thermal Conductivity
- 3 DTU/(m·s·°C)
- State Changes
- Melts at 1454.85 °C into Molten Nickel.
- Found or Produced
- Occurs naturally in the Garden biome.
- Main Uses
- Metal Refineries refine it into Nickel; Rock Crushers recover some Nickel. Hatches can eat it for Coal, Smooth Hatches can excrete Nickel, and Crafting Stations use it for Oxygen Masks and Metal Power Banks.
- Pack
- The Prehistoric Planet Pack
Niobium
A refined metal for Thermium production, high overheat limits, and decor.
- Material Category
- Rare Resource
- Specific Heat Capacity
- 0.265 DTU/g/°C
- Thermal Conductivity
- 54 DTU/(m·s·°C)
- State Changes
- Melts at 2476.85 °C into Molten Niobium.
- Found or Produced
- Occurs on the Superconductive Asteroid and is emitted by Niobium Volcanoes. Metal Refineries can also produce it from Thermium. Cooling Molten Niobium produces Niobium.
- Main Uses
- Molecular Forges combine it with Tungsten to make Thermium. Buildings made from Niobium gain 500 °C of overheat limit and a 50% decor bonus.
- Pack
- Base game
Obsidian
A high-temperature construction material that Rock Crushers can turn into Sand; Stone Hatches can eat it.
- Material Category
- Raw Mineral
- Specific Heat Capacity
- 0.2 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at 2726.85 °C into Magma.
- Found or Produced
- Occurs in Barren and Magma biomes, with smaller deposits in Tundra and Jungle biomes. Gildgos excrete it after eating Sulfur.
- Main Uses
- A high-temperature construction material that Rock Crushers can turn into Sand; Stone Hatches can eat it.
- Pack
- Base game
Oxylite
Used as an oxidizer in rocket engines, including Biodiesel, Hydrogen, and Petroleum Engines.
- Material Category
- Sublimator
- Specific Heat Capacity
- 1 DTU/g/°C
- Thermal Conductivity
- 4 DTU/(m·s·°C)
- State Changes
- Melts at 1409.85 °C into Magma.
- Found or Produced
- Oxylite Refineries make it from Oxygen and Gold. Dense Pufts and Puft Princes also excrete it.
- Main Uses
- Used as an oxidizer in rocket engines, including Biodiesel, Hydrogen, and Petroleum Engines.
- Pack
- Base game
Packed Snow
Used to make Snow Tiles, which stay in place instead of falling like loose Snow.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 2.05 DTU/g/°C
- Thermal Conductivity
- 0.545 DTU/(m·s·°C)
- State Changes
- Melts at -0.65 °C into Water.
- Found or Produced
- Snow Tiles are made from Packed Snow; it stays in tile form instead of falling like loose Snow.
- Main Uses
- Used to make Snow Tiles, which stay in place instead of falling like loose Snow.
- Pack
- The Frosty Planet Pack
Pearl
Used in Solar Panels and some building recipes; Seaquines can eat it and excrete Slime.
- Material Category
- Miscellaneous
- Specific Heat Capacity
- 0.45 DTU/g/°C
- Thermal Conductivity
- 0.9 DTU/(m·s·°C)
- State Changes
- Turns into Carbon Dioxide at 824.85 °C.
- Found or Produced
- Clampums produce Pearls after eating Sand.
- Main Uses
- Used in Solar Panels and some building recipes; Seaquines can eat it and excrete Slime.
- Pack
- The Aquatic Planet Pack
Peat
Burn it in a Peat Burner, use it as fuel in a Smoker, or process it in a Kiln for Refined Carbon and Ceramic.
- Material Category
- Consumable Ore
- Specific Heat Capacity
- 0.71 DTU/g/°C
- Thermal Conductivity
- 0.6 DTU/(m·s·°C)
- State Changes
- Changes into Coal at 226.85 °C.
- Found or Produced
- Lumbs excrete it after eating resources.
- Main Uses
- Burn it in a Peat Burner, use it as fuel in a Smoker, or process it in a Kiln for Refined Carbon and Ceramic.
- Pack
- The Prehistoric Planet Pack
Phosphorite
A fertilizer ingredient for farming buildings and several crops.
- Material Category
- Agriculture
- Specific Heat Capacity
- 0.15 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at 243.85 °C into Liquid Phosphorus.
- Found or Produced
- Occurs naturally in Jungle and Reef biomes.
- Main Uses
- Used by Fertilizer Synthesizers, Pincha Pepperplants, and Wheezeworts; some bugs can eat it.
- Pack
- Base game
Plastic
Used for buildings and crafting; Molecular Forges and Polymer Presses use it in advanced recipes.
- Material Category
- Manufactured Material
- Specific Heat Capacity
- 1.92 DTU/g/°C
- Thermal Conductivity
- 0.15 DTU/(m·s·°C)
- State Changes
- Melts at 159.85 °C into Liquid Naphtha.
- Found or Produced
- Polymer Presses make it from Petroleum; Glossy Dreckos can also grow it on their scales.
- Main Uses
- Used for buildings and crafting; Molecular Forges and Polymer Presses use it in advanced recipes.
- Pack
- Base game
Plastium
Used for advanced buildings and made into Flydo equipment at a Soldering Station.
- Material Category
- Manufactured Material
- Specific Heat Capacity
- 1.5 DTU/g/°C
- Thermal Conductivity
- 0.25 DTU/(m·s·°C)
- State Changes
- Turns into Sour Gas at 1826.85 °C.
- Found or Produced
- Molecular Forges make it from Thermium, Plastic, and Brackwax.
- Main Uses
- Used for advanced buildings and made into Flydo equipment at a Soldering Station.
- Pack
- Base game
Plywood
Works in many Wood building and crafting recipes; Ethanol Distillers and Kilns can process it.
- Material Category
- Organic
- Specific Heat Capacity
- 2.3 DTU/g/°C
- Thermal Conductivity
- 0.35 DTU/(m·s·°C)
- State Changes
- Turns into Carbon Dioxide when heated to 550 °C.
- Found or Produced
- Plywood Presses make it from Plant Husk and Resin.
- Main Uses
- Works in many Wood building and crafting recipes; Ethanol Distillers and Kilns can process it.
- Pack
- Base game
Polluted Brine Ice
A frozen liquid that Ice-E Fans can use for cooling.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 3.6 DTU/g/°C
- Thermal Conductivity
- 2.18 DTU/(m·s·°C)
- State Changes
- Melts at -25.5 °C into Polluted Brine.
- Found or Produced
- Cooling Polluted Brine produces Polluted Brine Ice.
- Main Uses
- Ice-E Fans use it for cooling.
- Pack
- The Aquatic Planet Pack
Polluted Dirt
A useful input for composting, geotuning, and critter ranching.
- Material Category
- Organic
- Specific Heat Capacity
- 0.83 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Melts at 1712.85 °C into Molten Glass.
- Found or Produced
- Outhouses, Ethanol Distillers, and Water Sieves produce it. Pacu excrete it, Sludge Presses make it from Polluted Mud, and heating Polluted Mud also produces it.
- Main Uses
- Composts turn it into Dirt; Geotuners and Sublimation Stations use it, while Sage Hatches and Pokeshells can eat it.
- Pack
- Base game
Polluted Ice
A cooling material for Ice-E Fans and Tempshift Plates.
- Material Category
- Liquefiable
- Specific Heat Capacity
- 3.05 DTU/g/°C
- Thermal Conductivity
- 1 DTU/(m·s·°C)
- State Changes
- Melts at -20.65 °C into Polluted Water.
- Found or Produced
- Occurs naturally in Tundra biomes. Cooling Polluted Water or Latex also produces it.
- Main Uses
- Ice-E Fans use it for cooling or use it to build Tempshift Plates.
- Pack
- Base game
Polluted Mud
A useful mix for Sludge Presses and Sage Hatch ranching.
- Material Category
- Organic
- Specific Heat Capacity
- 0.83 DTU/g/°C
- Thermal Conductivity
- 2 DTU/(m·s·°C)
- State Changes
- Turns into Steam 60% + Polluted Dirt 40% at 99.69 °C.
- Found or Produced
- Occurs naturally in Swampy and Kelp Forest biomes. Orehulls produce it while eating Kelpole or Nori.
- Main Uses
- Sludge Presses turn it into Polluted Dirt and Polluted Water; Sage Hatches can eat it.
- Pack
- Spaced Out!
Pyrite
A metal ore that can be refined or crushed into Iron.
- Material Category
- Metal Ore
- Specific Heat Capacity
- 0.386 DTU/g/°C
- Thermal Conductivity
- 4.5 DTU/(m·s·°C)
- State Changes
- Melts at 1083.85 °C into Molten Iron.
- Found or Produced
- Mined from space in Spaced Out! at the Gilded Asteroid destination.
- Main Uses
- Metal Refineries process it into Iron; Rock Crushers can also recover some Iron.
- Pack
- Base game
Refined Carbon
Used with Iron and Lime to make Steel, and in Diamond Press recipes.
- Material Category
- Consumable Ore
- Specific Heat Capacity
- 1.74 DTU/g/°C
- Thermal Conductivity
- 3.1 DTU/(m·s·°C)
- State Changes
- Melts at 4326.85 °C into Liquid Carbon.
- Found or Produced
- Kilns make it from Coal; heating Graphite also produces it.
- Main Uses
- Used with Iron and Lime to make Steel, and in Diamond Press recipes.
- Pack
- Base game
Refined Phosphorus
A refined crop nutrient used by Geotuners and some critters.
- Material Category
- Consumable Ore
- Specific Heat Capacity
- 0.7697 DTU/g/°C
- Thermal Conductivity
- 0.236 DTU/(m·s·°C)
- State Changes
- Melts at 44.15 °C into Liquid Phosphorus.
- Found or Produced
- Produced by melting Phosphorite into Liquid Phosphorus and cooling it.
- Main Uses
- Geotuners use it, and some bugs can eat it.
- Pack
- Base game
How Elements Change Form
Every element has temperatures where it changes form. Heat a solid past its melting point and it becomes a liquid, heat that liquid further and it turns into a gas, and cooling reverses the whole process. Sand, for example, melts into molten glass when it gets hot enough, and steam condenses back into water once it cools. The listed temperatures are a little early, too, since changes happen about 3 degrees past the number shown.
These changes have real effects on a base. A liquid or gas that changes form inside a pipe can crack it, and heat moves from tile to tile, so a hot room warms the rooms beside it.
Solids: Rock, Metal and Building Materials
Solids make up the ground, walls and ore veins of each asteroid. When a Duplicant digs out a solid tile, half of its material is destroyed and the other half is left as loose debris that can be moved.
The everyday solids are stone types like sandstone, igneous rock and obsidian, along with sand and dirt. Metals such as iron come from specific biomes and asteroid types, and the rarest solids can only be reached through space exploration.
Liquids: Water, Oil and How They Flow
Liquids follow gravity, spreading across flat floors, through open doors and down ladders. Only one liquid can fill a tile at a time, and liquids don't mix inside a tile, so they settle into layers by weight. That is how oil can end up sinking under water. Liquids also can't exist in tiny amounts, and anything under about 10 grams simply disappears.
Weight matters once liquid piles up. A tile holding more than 35 percent of its usual mass per tile can flood nearby buildings and drown critters, and stacked liquid presses on the tiles below it. Overloaded tiles crack and leak, and can eventually break.
Gases: Breathable Air and Layering
Gases spread out to fill whatever holds them, and unlike liquids they always move into nearby empty space. Lighter gases rise above heavier ones, and hot gas rises while cold gas sinks, so a room's air separates into layers over time. This is why carbon dioxide, which Duplicants breathe out, collects low while oxygen floats higher.
Only oxygen and polluted oxygen count as breathable. Air holding less than 50 grams of oxygen per tile is unbreathable, and between 50 and 300 grams it can be breathed but still stresses Duplicants. Polluted oxygen technically qualifies, but breathing it gives Duplicants the Yucky Lungs debuff, which a Deodorizer can clean up.
How to Get Elements in Oxygen Not Included
Digging is the most basic source, since it releases the materials held in solid tiles. Pipes then carry liquids and gases between your buildings.
The map supplies a lot more. Geysers and vents release a specific element from time to time, such as water, steam or chlorine. Each asteroid's type decides which biomes it has, and every biome holds solids while some also hold liquids or gases.
Machines turn one element into another. An Electrolyzer splits water into oxygen and hydrogen, a Desalinator turns salt water into water and salt, and a Metal Refinery turns ore into metal. Rockets can also reach space destinations and bring back what sits there, with cargo modules needed for some of it.
Which Elements Matter Most
Oxygen and water come first. Duplicants need breathable air to keep working, and early on most oxygen comes from machines that split water or use up algae. Algae is consumed rather than recycled and becomes scarce later, so a growing colony needs other sources.
Iron is the main ingredient in steel, and it also goes into power systems, buildings and automation. Neutronium sits at the map's edges and under geysers, and Duplicants can't dig it at all, so it works as a permanent wall that your layout has to route around.
Abyssalite is the material to know for heat control. It forms thick veins between biomes, and as long as those veins stay intact and at least two tiles thick, they block heat from crossing. Mining it takes a Duplicant with the Superhard Digging skill, so plan ahead.
Phosphorite, found in jungle biomes, keeps domestic crops growing and feeds into fertilizer. Petroleum and natural gas both produce power: petroleum runs generators and rocket engines, and natural gas runs its own generator. Petroleum can also be turned into plastic in a Polymer Press.
Dangerous Elements and How to Stay Safe
Chlorine is unbreathable, and Duplicants who walk through it unprotected for more than three seconds gain Eye Irritation, which lowers their Athletics. Hot steam can scald Duplicants, except in saunas, and an Atmo Suit protects against it.
Liquids are just as risky. A Duplicant submerged without a way to reach air will drown after a while, hot liquid burns, and very cold liquid causes frostbite unless the Duplicant wears an Atmo Suit.
Slime can carry germs that cause Slimelung, and it gives off polluted oxygen when dug up, so handle it with care. In Spaced Out!, uranium ore and nuclear fallout also give off radiation.
Space is a hazard for fluids too. Liquids and gases that touch open space disappear unless a barrier like Drywall covers them.
FAQ
How much oxygen does a Duplicant use?
A typical Duplicant uses about 100 grams of oxygen per second, but traits change that. A Mouth Breather doubles it to 200 grams per second, while Diver's Lungs cut it to 75 and Deep Diver's Lungs cut it to 50.
Do Duplicants need to drink water?
No. Duplicants don't need to drink water directly to survive, but water still matters a lot. It supports food production, such as the Microbe Musher, which turns 75 kilograms of dirt and 75 kilograms of water into a Mush Bar, and it also keeps certain crops watered.
Can you make power from gas?
Yes. A Natural Gas Generator burns 90 grams of natural gas per second to produce 800 watts of power, and it gives off polluted water and carbon dioxide while it runs. Flatulent Duplicants can supply some natural gas, but you need a lot of them to keep one generator running.