In Still Wakes the Deep , the “entity” is not given one single confirmed name in-game; it’s presented as an ancient, otherworldly force that the drilling on the oil rig disturbs, turning the crew into monstrous forms.

What it seems to be

The story frames it as something buried deep beneath the North Sea , and the crew’s drilling awakens it. Most descriptions treat it as cosmic-horror style: unknowable, ancient, and hostile rather than a standard monster with a neat explanation.

How fans usually describe it

People often call it:

  • an ancient entity.
  • a cosmic horror presence.
  • the thing beneath the rig.
  • a biomass or corruption that spreads through the crew.

Spoiler-safe takeaway

If you want the simplest answer: it’s an eldritch, ancient being disturbed by drilling , not a fully explained creature with a clear species name. The game intentionally keeps it mysterious, which is a big part of the horror.

TL;DR: the entity is basically an unnamed ancient cosmic horror awakened from below the rig.