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This article may contain outdated information that is inaccurate for the current version (Cloud Saves). It was last updated for the Automation Innovation Pack Update.

Slime is a thick biomixture of algae, fungi, and mucopolysaccharides.
It can be distilled into Algae and emits Polluted Oxygen once dug up.
Chemical Symbol
Melting point
125 °C → Dirt
Condensation point
Freezing point
Vaporization point
Polluted Oxygen
2 (Very Soft)
Specific Heat Capacity
0.200 (DTU/g)/°C
2.000 (DTU/(m*s))/°C
Light Absorption
100 %
Mass per Tile
Bait, Solid, Organic
Overheat Temperature

Slime is one of the Resources in Oxygen Not Included. It is found mostly in the Swamp Biome, and in maps with the Slime Molds World Trait.

Properties[edit | edit source]

Slime turns into Dirt when heated to above 125°C. If Slime in the form of debris reaches this temperature, it forms a natural tile of Dirt.

It emits Polluted Oxygen once dug up, losing mass in the process, even when in a Storage Bin. This can be prevented by storing it submerged in a Liquid or under a Gas pressure of at least 1.8kg/tile.

Slime storage.jpg

Usage[edit | edit source]

Algae Distiller can produce Algae from Slime. 600 g/s Slime = 200 g/s Algae + 400 g/s Polluted Water.

Dusk Cap domestic growth requires 4 kg/cycle Slime. It reduces Dusk Cap growth length from 30 to 7.5 cycles.

Sage Hatches can eat Slime and excrete Coal.

Slime can be used as bait in Airborne Critter Bait to attract Pufts and Puft Princes.

If heated, it can be converted into Dirt

Production[edit | edit source]

Slime exists in the Swamp Biome and also in ruins. Random placed Slime balls can be found in maps with Slime Molds World Trait.

Pufts and Puft Princes breathe Polluted Oxygen and excrete Slime.

Tips[edit | edit source]

Slime generally is contaminated with Slimelung Germs and emits lots of Polluted Oxygen after being dug up. The Germs will then be present on the Polluted Oxygen and will rapidly multiply. Deodorizers can help clean up the Polluted Oxygen. They won't, however, kill Slimelung Germs. Instead, the Germs will slowly die off in regular Oxygen.

Storing Slime in multiple weight-limited Storage Bins with Deodorizers right above them can give you low power Oxygen without needing Algae Terrariums or Algae Distillers. However, Slime converts to Polluted Oxygen at a low rate (thus you need more Compactors) and at the Slime's original temperature (swamp biomes are at least 30+°C, you'll need a Wheezewort or two). Deodorizing Polluted Oxygen will result in 10% less Oxygen (more efficient than Deoxiders) and still infected with Slimelung (though the germs will eventually die off in pure Oxygen), and you'll lose out on the Polluted Water from the distillers.

Storing Slime in a Chlorine atmosphere can kill all Slimelung after a full cycle.

The Slime tiles that are part of Ruins do not have Slimelung.

See also[edit | edit source]