Oxygen Not Included Wiki
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Duplicant
This article has not been revised for the current version (U51-600112). It was last updated for LU-356355. It may contain inaccuracies.
This article has not been revised for the current version (U51-600112). It was last updated for LU-356355. It may contain inaccuracies.

Hardness determines how hard it is to dig out a tile and how much the tile can withstand pressure primarily from Liquids.

Especially Tiles out of Sandstone are unsuitable to hold large amounts of water.

Very Firm materials like Granite require skilled dupes to be mined. Nearly Impenetrable materials like Abyssalite need even further training.

Name Range Required Skill Example
Very Soft <10 None Algae, Dirt, Sedimentary Rock
Soft 10-24 None Sand, Sandstone
Firm 25-49 None Copper Ore, Ice, Igneous Rock
Very Firm 50-149 Hard Digging Bleach Stone, Granite
Nearly Impenetrable 150-254 Superhard Digging Abyssalite, Wolframite
Superduperhard Digging Diamond, Obsidian
Impenetrable ≥255 Unobtainable Neutronium
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