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The Corruption

The spreading flesh of a Necromorph outbreak

The Corruption was an encrusting mass of Necromorph tissue that grew wherever an outbreak took hold, spreading in the presence of a Marker signal. It reshaped its surroundings into a habitat for the horde, poisoning the atmosphere and providing a ready supply of biomass.

By Joe Garratt

The Corruption was an encrusting mass of Necromorph tissue found wherever an outbreak took hold, growing and spreading in the presence of a Marker signal. More than a sign of infestation, it was a habitat changer, remaking its surroundings into ground suited to the horde, poisoning the air and feeding the creatures that grew within it.

Nature#

The Corruption was one of the first and most pervasive signs of a Necromorph outbreak. Like all Necromorph tissue, it existed only in the presence of a Marker signal and originated from reanimated dead cells. According to a log addressed to Dr. Cross, it resembled a bacterium: it infected dead cells through osmosis and then reproduced asexually at an incredible rate, which allowed it to spread far and fast during an outbreak even in areas with little available biomass. Its growth was relentless. A member of the USG Ishimura crew remarked that by the time they had finished sterilizing an area of the Corruption, it had already grown back, larger than before.

What the Corruption was made of went beyond its human hosts. After Marker 3A was destroyed and the growth broke down into an organic sludge in the absence of a signal, scans showed that what remained was only about 70 percent human DNA. This implied that the Corruption would draw on any available biological matter, or at least any animal tissue, to grow, spreading through otherwise useless food sources and leaving intact corpses to become the combat-capable Necromorph forms.

A habitat for the horde#

The Corruption's role during an outbreak was one of support. It was, in effect, a Necromorph biome, a habitat changer that made an infested ship or colony far easier for the creatures to hold. It passively converted the local atmosphere into noxious gas, removing free oxygen and metabolizing it into unknown poisonous gases, a process it carried out in conjunction with the Wheezers and one that threatened the long term survival of anyone the other Necromorphs had not yet killed. According to Gabe Weller, the Corruption smelled like vomit, likely a side effect of that atmospheric conversion, and its surface was slick enough that survivors moved carefully across it.

The growth also reshaped the spaces it filled. It spread through hallways and ventilation systems, which had the double effect of sealing off escape routes and using the existing network of vent shafts to spread further. As it grew it absorbed and consumed the organic matter around it, and it served as the ground on which other forms depended. Guardians, Cysts, and Nests could grow only where the Corruption had spread first, unable to form without it, which confirmed its place as the habitat that the rest of the infestation was built upon.

Purpose in the Convergence#

Beyond sustaining an outbreak, the Corruption appears to have served the larger design of the Markers. By providing a vast and universal reserve of ready biomass, it stockpiled the material for the Convergence that the artifacts ultimately drove toward. When a Brethren Moon was formed, much of the biomass it absorbed is likely to have come from the Corruption, the spreading flesh of every outbreak feeding the creature at the end of the strain.

Frequently asked questions

What was the Corruption in Dead Space?
The Corruption was an encrusting mass of Necromorph tissue found wherever an outbreak occurred, growing and spreading in the presence of a Marker signal. It acted as a habitat changer, converting the local atmosphere into poisonous gas and reshaping an area into ground suited to the Necromorphs.
What was the Corruption made of?
Like all Necromorph tissue, the Corruption existed only in the presence of a Marker signal and originated from reanimated dead cells. After Marker 3A was destroyed and the Corruption broke down into sludge, scans showed it was only about 70 percent human DNA, indicating it would use any available animal tissue to grow.
Why was the Corruption dangerous beyond the Necromorphs?
The Corruption passively removed free oxygen from the atmosphere and metabolized it into unknown poisonous gases, working alongside Wheezers. It spread rapidly through hallways and ventilation systems, blocking escape routes, and provided ready biomass and a substrate on which non-mobile Necromorph forms could grow.

Sources

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