Dead Space

Brethren Moons

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"...The hell IS that?"
—Isaac Clarke
"A moon. Or what's left of one."
—Robert Norton[1]
DS3 Brother Moon 01
Tau Volantis' Brethren Moon after the battle with Isaac and Carver.
Lily FordAdded by Lily Ford
The Brethren Moons (or Brother Moons) are the source of the Marker signals. They are, in a sense, the primary antagonists of the entire Dead Space series.



Source and Convergence

The Brethren Moons, though their origins are unknown, are a series of moon-sized creatures throughout the galaxy that consume all organic life that they encounter through the use of their Markers, which are imbued with their alien DNA.  Through the beginning of a Convergence Event, a Moon begins the process of assimilating all organic and living tissue within its radius, thus, making it whole. It is unknown if the Brethren Moons actually constructed the original Markers or merely used them to spread the Necromorph infection. 

A Moon begins its growth once a Marker begins a Convergence Event, usually brought on by a mass of Necromorphs assembling within its area. Once the Convergence begins, the necrotic flesh of both Necromorphs and dead tissue within its reach are flung into the stratosphere where they begin to form together, assembling the Moon from the tissue matter.

The creature is only finalized once the makers of the Marker are absorbed along with the planets entire biosphere. Once the makers have been absorbed as well as a large portion of the biosphere, the Marker itself gravitates to the central heart of the moon, so that it can broadcast telepathically to the rest of the formation as well as release broadcasts to other nearby Markers. It is currently unknown what happens to the Moon once it has absorbed all life on its birth site, but it is assumed that the mass travels to the nearest source of organic life to continue feeding.

It is revealed during the events of Dead Space 3 that it is likely that all life between the origin of the Moons (wherever in the galaxy that may be) and humanity's home system has been extinguished and that the Moons are responsible for the destruction of countless species in their quest to absorb all organic tissue within the universe, leaving much of our galaxy in a state of dead space. It is also revealed that the Moons form a network spanning the entire galaxy and that this network enables them to communicate with each other.  The Markers influence their target races to build more Markers, which in turn trap and assimilate other species, expanding this Brethren Moon network.

Events of Dead Space 3

During the events of Dead Space 3, Isaac Clarke comes to realize that the Marker signals that Markers receive are a distress call from the incomplete moon of Tau Volantis, which was forced into a hibernation state when the alien race it was attempting to lure and assimilate built a machine to freeze over the entire planet, preventing the monstrosity from becoming whole and continuing on in the galaxy. As a result, the Moon began deploying distress signals through its alien Markers, hoping to bring new organic beings to disable the machine preventing its growth, which would allow it to continue its assimilation of the galaxy.

The faux Markers that Isaac had been facing were attempting to continue the "Brethren Chain" of Moons by circumventing the hibernating Tau Volantis Moon. He also realizes that if the moon is freed from its frozen hibernation, any location within the galaxy with a still active Marker will begin the ultimate Convergence, continuing the growth of the Tau Volantis Moon.

The Moon's completion would then awaken the other completed Brethren Moons which would subsequently head for the Marker locations and devour all organic life present, resulting in the inevitable destruction of humanity and possibly all life in the galaxy.

In the final chapter, Isaac manages to reconfigure the alien machine and destroy the Tau Volantis Moon. The Moon's destruction causes all the Markers to cease broadcasting their signals, ending the danger they pose to the rest of the galaxy.

Spoilers end here.


  • Like Dead Space and Dead Space: Extraction, the first letters in each chapter of Dead Space 3 spelling the words: "BROTHER MOONS ARE AWAKE", suggesting that the other Moons are awake and even though the Moon was destroyed, Isaac's journey may not be over and that, humanity is only safe for now.
  • Research notes from Dr. Serrano speculate that the Moons are drawn to species that have grown and spread throughout the galaxy, and have become overpopulated and starved of resources. He speculates that this is how they discovered the Alien race of Tau Volantis, who once were an empire trillions strong. Humanity shares a similar situation as the now extinct Alien race, becoming too big with too little to go around; a prime target for the Brethren Moons. This theory is backed up by the limitless energy the Markers radiate, encouraging species with a desperate need for resources and energy to focus on building more markers across their systems. This would make the species less able to enact quarantines effectively. 
  • During a Convergence Event, as seen in Dead Space 3, the moon not only absorbs organic material, but also fragments of the planet as well. It is possible that the Moon is able to craft Markers in this manner, or it simply reenvelopes Markers that the civilization it is absorbing had already made.
  • The Hive Mind and the Nexus were thought to have been the conduits for the Necromorphs, channeling the Marker's signal through them, acting as ground commanders. In Dead Space 3, it was revealed that even the large and powerful Necromorphs are commanded by the Brethren Moons in space across the galaxy, like The Nexus  controlled by the Moon on Tau Volantis.




  1. Dead Space 3: Chapter 2: On Your Own

See Also

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