BACKROOMS.

Type:
Series of rooms and hallways

Location:
Alternate Reality (presumably)

Inhabitants:
The Lifeform

The Backrooms is a likely living[1] parallel dimension consisting of distorted imitations from memory of places from our reality, primarily appearing as enormous interconnected spaces of similar rooms, hallways, and doorways. While it also contains several unique looking areas, the largest area borrows the appearance of an empty or unfurnished office building with bright yellow wallpaper, tiled ceilings, and buzzing fluorescent light fixtures.

The Backrooms is dotted with multiple different "Null Zones", which are small areas in which the Backrooms and the “real world” are able to connect. It is possible to fall out of reality and into the Backrooms through these Null Zones within the “real world.” The Backrooms is shown to not abide by the rules of the real world in some cases. Time travel into the future or the past is sometimes shown to be possible, at least inside or near these Null Zones.

General information:

Aliases:
Lifeform Fellow[1]
Bacteria[2]

Occupation:
Stalking those it finds
Physical description

Type:
Mutated hay bacillus

Height:
~11 feet (presumed)

The Lifeform is a species of hostile, bacterial entities native to the Backrooms. Not much is known about them, as they are elusive creatures that have only been encountered a handful of times by lost civilians or Async researchers.

Even though they are never seen killing humans directly, it can be assumed that they were responsible for the deaths of Kane Pixels, the Unidentified Victim, and potentially the Unidentified Female Protagonist.

Appearance:
Most of the Lifeform entities stand very tall (presumably 11 feet tall, or in the metric system: 3.35 meters), easily able to tower over a human if standing fully upright. They often feature two long, arm-like limbs which extend down to the ground, thin, skinny fingers, and a slim, vine-like anatomy, akin to a tangle of black wires in a humanoid shape. The entity can bend it's torso forward quite a bit as seen in The Backrooms (Found Footage), although this isn't all the time. The Lifeform entities are implied to consist of unified colonies of extremely mutated hay bacillus.

The Lifeform entities appear to wander aimlessly throughout the Backrooms, and it is unknown if they have a concept of territory, or even any conscious thought at all. When inactive, some entities appear in secluded areas forming some kind of nest with tendrils similar to those making up their body, and can be awoken by humans wandering into these areas.

They seem to have the anatomical ability to produce and mimic sound, especially when detecting prey. This notably occurs in Found Footage #2, where the Lifeform imitates the Unidentified Female Protagonist's pleas for help. Presumably, these vocalizations are achieved through repurposing of a victim's trachea.

Upon detection, the entities will charge at other perceived lifeforms and attempt to make physical contact, possibly to kill or "consume"

the individual, although how this process works is unknown. While these entities appear to be outran in terms of speed, their acute perception of sound, as well as their labyrinthine native habitat ensures that once their prey is cornered, they are unable to evade contact by way of silence.

Once starting chase with a human, the Lifeform entities will run at a speed closely matching the victim's speed while making loud, distorted, and wailing/horn-like sounds. They will not stop until they lose sight of the victim or when they catch up to them.