Molten Synthesis Gas is an artificial, unbreathable liquid present in Oxygen Not Included. It represents a condensed or liquefied form of synthesis gas created through industrial processes rather than occurring naturally. As a liquid, it cannot be breathed by duplicants and must be handled with the same containment and routing considerations applied to other hazardous or non-breathable fluids.
Molten Synthesis Gas serves primarily as a feedstock that can be converted into an efficient fuel. The game descriptions across multiple language sources consistently report that this substance is artificial, non-breathable, and convertible into fuel, emphasizing its role as an intermediate product in fuel production chains rather than as a consumable or breathable resource. Its nomenclature in other localizations reflects the same meaning: for example, the item is referred to as 용해 기체 (Korean), Конденсированный синтез-газ (Russian), 熔融合成气 (Simplified Chinese), 液化合成ガス (Japanese), and Flüssiges Synthesegas (German).
Physical classification: liquid (artificial).
Breathability: unbreathable; not suitable for direct inhalation by duplicants.
Primary use: convertible into efficient fuel.
Players should treat Molten Synthesis Gas as an industrial fluid resource intended for processing into fuel. The available sources uniformly state its nature and primary conversion purpose but do not specify conversion methods, reaction chains, or machine requirements; those operational details depend on in-game systems and technologies and are not asserted in the summarized descriptions.
