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Rom, also known as the Vacuous Spider, is a minor antagonist in Bloodborne. She is a kin of the Great Ones stationed by Kos to protect the barrier between dreams and reality, hiding the many horrors that the paleblood moon should bring.


Despite her title, Rom resembles a gigantic pillbug or a caterpillar rather than an arachnid. She has a silverfish-like tail and a bulbous body from which vegetation appears to be growing, possibly Coldblood Flowers. Her face resembles a chunk of pumice and is covered in eyes, suggesting its connection to the Great Ones.


Her name - "vacuous" - suggests that Rom is brain-dead, to her thoughts are so far beyond human understanding that Rom cannot communicate her findings to humanity.

Apart from when the Hunter attacks her, Rom is completely docile.

Powers and Abilities

Rom has the power to summon her offspring who fall from the sky when she is first attacked. At a distance, Rom can shoot large ice crystals skyward that land on the hunter. She can also create a magical blast from arcane magic. If attacked long enough, Rom can teleport to another part of the dimension, which spawns another batch of her children.


Rom was once a scholar of Byrgenwerth whom at some point went through metamorphosis into Kin courtesy of Kos, according to the dialogue given by Micolash. Since becoming a Great One, all methods and rituals used to achieve this have been lost to humanity. Since then, Kos has appointed Rom with the task of protecting humanity from the eldritch, casting the world in illusion as to hide the information from an unsuspecting public.





  • Given Rom's connection to Kos, it is possible that Rom (apart from the Hunter him/herself in the third ending) is the only successful attempt at evolving a human into a Great One.


           Bloodborne Logo.png Villains

Great Ones
Amygdala | Ebrietas | Formless Oedon | Moon Presence | Orphan of Kos | Rom

Blood-Starved Beast | Cleric Beasts | Darkbeast Paarl | Father Gascoigne | Laurence | Ludwig | Scourge Beasts | Vicar Amelia

Bloody Crow of Cainhurst | Father Gascoigne | Gehrman | Huntsmen | Lady Maria | Ludwig

Afflicted Beggar | Alfred | Annalise | Imposter Iosefka | Martyr Logarius | Micolash | Patches the Spider | Provost Willem | Shadows of Yharnam | The One Reborn | Witches of Hemwick

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