Level 3.1
rating: +38+x


Class 4

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One of the many machines found inside the complex.

Level 3.1, known as "Space Complex", is a sub-layer found within Level 3. It is an array of rooms that are filled with machines and spacecraft.


Sometimes, while traversing Level 3, wanderers may come across a different set of rooms, which are filled with several different types of machinery that are specialised for spacecraft. They are connected by nothing but a handful of narrow corridors, which have been known to stretch for miles on end. Said occurrence happens due to the existence of what has been dubbed Level 3.1, a sub-layer in Level 3.

The sub-layer looks very different from Level 3, with rooms being comprised of white walls, and floors that are made of clean, shiny, light grey tiles; a significant change from the industrial and gritty look of the baseline Level 3. The roof is almost always made out of concrete, with big industrial lights being the main source of illumination in the entirety of Level 3.1, whilst some rooms contain neon lighting instead.

All rooms are connected by long, narrow corridors, whose walls are filled with gas pipes and copper cables. These cables are functional and transmit energy like they normally would. Because of this, it is recommended that one looks out for any damaged or uninsulated cables, as they can potentially harm the wanderer. These narrow corridors will almost always lead to another room, which will either be a large, open area filled with lots of machinery and spacecraft, or a circular room, which stretches deep below the ground level — not dissimilar to a silo — and houses a singular rocket, with no specified model or manufacturer. The only exception to this is in the rare case of corridors leading to dead-ends, which is fortunately highly unlikely to occur.

As previously mentioned, all rooms contain vast amounts of some form of machinery, which functions at all times without the need for human intervention. These machines seemingly operate without any power source and do not possess any power switch.

Destroying the machines will not prevent them from functioning, as they will immediately be repaired by a pair of robot hands that will emerge from holes in the ceiling upon damage being done to the machinery. To do this, the hands either use tools that are fixed to them and their arms or alternatively, use apparatus that may be scattered around the room.
Whilst the arms are usually passive, paying no mind to wanderers whatsoever, they will immediately turn aggressive upon being disturbed. If this occurs, they will begin hitting the offender relentlessly until they leave the area, singular, and will continue to do so if they return later on whilst they're still at work.

Much like Level 3, the dangerous environment of Level 3.1 pays off due to the abundance of objects that are scattered around it. These include: Almond Water, False Outlets, and Firesalt to name a few. There are also large energy storage devices that can be found across some of the rooms inside this level. Several outlets can be found on them, which can power a myriad of different man-made devices.

On rare occasions, containers full of construction equipment can be found in certain parts of the level. They contain inside of them sets of construction equipment, such as sledgehammers, bolt cutters, drills, flashlights, first aid kits, construction helmets, and several other such supplies. These containers are highly sought after by major groups of the Backrooms, as the objects found inside of them are vital to progress in industrial zones and habitable areas, such as Level 11 and Level 901.

Wi-Fi is present all across Level 3.1, available through Wi-Fi units mounted on the walls of every room. The signal may vary from room to room and will become highly unstable when in corridors.

Temperatures throughout the rooms would be extremely high due to the presence of machines constantly operating, but the sub-layer contains a gigantic network of ventilators and air vents present throughout, which keeps the temperature at around 22°C (71.6°F) in all rooms, and about 18°C (64.4°F) in the corridors.


One of the rare staircases which can be found on some corridors.

In the narrow corridors, wanderers will be mostly safe from entities, as they do not appear to travel across rooms. These narrow corridors contain numerous gas pipes, cables, and machinery, which are always connected between rooms. Attempting to destroy these objects has not been attempted yet, but will probably yield the same result as the aforementioned damaged machinery's repair process.

Although most corridors simply lead to another room and contain no other exits, some do contain a staircase that allows wanderers to exit the sub-layer. These appear at complete random and are extremely rare.

Sometimes, wanderers might come across extremely tall rooms, which are not dissimilar to silos. These rooms, which were briefly mentioned earlier in the article, always house one unbranded rocket, with no identifiable model, similar to other units. They are mostly devoid of entities, save for some uncommon occasions. Thus far, it is not known if these rooms have a bottom, as the rocket seems to be suspended over an endless void by a few steel arms. Control panels can also be found in a separate, secured room within the silo. They could theoretically be used to launch the rocket, but they are thankfully not known to function, being completely inoperable and oftentimes in various states of disrepair.


One of the centrifuges.

Other rooms which can be found, albeit not as commonly, are large centrifuges, press conference rooms, offices, and sleeping quarters.
Other rooms have been documented, but their scarcity has warranted them being omitted from this list. An extensive list of these rooms can be found in Log_3.1.txt, which can be found attached to this file. Most of these rooms contain large amounts of different hostile entities and are rarely ever devoid of entities.

Normally, no valuable objects can be found in the less common rooms. Occasionally, however, some may contain bottles of Almond Water stored in containers, oftentimes together with the aforementioned construction equipment.


Much like Level 3, Level 3.1 contains a lot of dangerous entities.
Although some appear in larger concentrations than others, some of the most common entities present all across the sub-layer are: Bursters, Stretchers, Clumps, Skin-Stealers, Dullers and Hounds.

The open areas are where most entities present within Level 3.1 can be found, usually in groups that are scattered all across the rooms. They will attack any wanderers in their vicinity, although the robotic arms will try to fight them off as best as they can1.


Multiple instances of Entity 19, known as the Disease, have been found in Level 3.1.

We urge all wanderers to be very cautious and maintain proper hygiene procedures to minimize the risk of contracting this deadly disease.

Thank you.

Bases, Outposts, and Communities:

M.E.G. - Base Gamma-B

  • Small outpost formed by volunteers from Base Gamma.
  • Consists of around 31 operatives.
  • Will provide shelter, supplies, and medical care to wanderers, and they will route them to safer levels if possible.

B.N.T.G. - Space Complex Outpost

  • Storage Facility for the B.N.T.G.
  • Consists of 18 permanent members.
  • Open to trading, will offer reasonable prices for most objects present in Level 3.1

Entrances And Exits:


To enter Level 3.1, travel and find a yellow staircase in Level 3. At the end of the staircase, there will be a door that allows one to enter Level 3.1. Be aware that by doing so, you will be unable to go back, as you will not be able to open the door anymore.


To exit Level 3.1, one must find the aforementioned staircases present in some corridors, which although rare, are the safest exits. Alternatively, one may noclip at random on walls present in rooms. Wanderers will always end up in Level 4 upon exiting.

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