Apart from very rare instances, Level 0 is very repetitive. It's the place, where it's nothing, but the stink of old moist carpet, the madness of mono-yellow, the endless background noise of fluorescent lights at maximum hum-buzz, and approximately six hundred million square miles of randomly segmented rooms to be trapped in. Although Level 0 is mostly made up of randomly segmented rooms, hallways and a few flights of stairs, some cracks on the wallpapers can be found occasionally, showing that people must have tried to escape this level. Some walls have outlets, but most of them are useless. Rarely, cameras can be found on the ceiling. You can also rarely find groups of rooms stained blood-red instead of mono-yellow, and random rooms filled with decorations and other miscellaneous objects. There are also some pitch-black rooms, and every now and then you can hear whispers. It is by far the safest level in The Main Nine. No-Clipping through a red wall in Level 0 will take you to the closest ceiling to that wall. You can practice No-Clipping in these areas.
Iconic humbuzz found in Level 0
'Entities '
Interactions with entities in Level 0 are very rare, but may happen. If encountered, they can be very dangerous. The known entities of Level 0 are Hounds, Dullers, Facelings, and rarely Lighters. If you see what you think is a wanderer, is not a human.
Colonies and Outposts
There are currently 19 known colonies and outposts in Level 0 of the Backrooms. Some may not exist now, some might have not existed at all.
Their goal is to exterminate the partygoer's race.
They won't as we dont like faceidiots =)
come to our party Don't do that. You will likely do 1 of 2 things: die, or become one of those awful things through a very painful and agonizing process.
The colony has around 1,000 members (including Oramile herself.)
They are always friendly and nice to everyone.
Established friendship with every friendly colony.
Are always willing to trade.
People who like Oramile are always welcome to join.
The Trollgers
Extremely hostile.
Unknown amount of members.
Will kill on sight.
Members feed on other humans.
AVOID AT ALL COSTS.
The Level-0 Mystery-Solvers
This group has a population of 122 people.
Most of them are scientists.
Is rumored to be a branch off of The Backrooms Analytic Squadron on Level 4.
Backroom Explorers
Consists of at least 178 lost people.
Very friendly.
Has a safety protocol when an entity is nearby.
The Great 101
They excel in defeating entities, but it is currently unknown how they got their weapons.
As it states in their name they are a group of 101 survivors.
Very little is known about them but there are rumors about a branch of them in Level Fun =).
Stevie-Town
Has only 12 or so citizens.
Led by a man named Steve, who acts as the colony's Sheriff and Mayor.
Mostly friendly.
The Lucid Group
A population of 8 people that no-clipped while dreaming.
Known to no-clip to different levels and out of the Backrooms.
This group is not confirmed to be real, as only one person has mentioned it, furthermore, the person refuses to reveal the location of the supposed group.
Fort Blake
Used to be a major base of operations for the Insurgency, but was destroyed after a battle with Camp Blastdoor.
What's left of it is controlled by a looter group known as "The Rascals".
The "Tom's Diner"
Here resides Tom, as the name suggests.
Was a chef before no-clipping into the backrooms.
Has food supplies that could last for another 2 years.
Tom is a cheerful and optimistic person.
Sticc Club
Very welcoming, most members are the entity Sticc.
Are never hostile, no matter what you do. However smacking them may cause some consequences...
It is really easy to get here. The most common way is to No-Clip out of reality in The Frontrooms. If you did it on purpose, you are either brave or foolish. If you no-clipped randomly, may God save you.
In Level 2, you can break a cracked floor to get here.
Go through the door on Level 27 to get here. Rarely you will end up in Level 4.
You can also hop into a painting that resembles Level 0 in Level 29.
In Level 34, you can go up the sewer grate to get here.
If you go into the employees only section in Level 40 you can get here.
In Level 49, you will be sent here if you don't meet the requirements.
Also, if you fall through the floor of the catwalks in level 90 you will end up back here as well.
In Level 99, if you go through one of the doors you can get here.
In Level 105, headbutt any wall on the floor or the roof. You will be transported here.
In Level 202 you can enter a mono-yellow skyscraper.
There's a chance you will enter this level by following a sign saying "Empty Office" in Level 251 (the other possible outcome is Level 4).
If you noclip into a corner of Level 433 you will fall through a dark tunnel leading here.
You can also enter this level from Level 666 by taking the elevator (the other possible outcome is The Hub).
You can also get here from Level 999 by admiting all of your sins (works frequently, but now always).
If you No-Clip through a box in Level 1051, you will end up just here.
Wait 96 or 102 hours in Level 1205.2 to be transported to this level.
In Level 2009, ask entity Bruno to bring you here.
In Level 9007199254740993 make it to The Hub replica in The Nether zone and enter a door; it mostly will take you here.
In Level -1 just take a door that goes to Level 0.
The door labeled 0 in The Hub will take you there.
You can get on The Dark Metro to get to Level 0.
You can get here from The Hive by heading down a tunnel.
Exits
It is very simple to leave Level 0, there are a lot of exits. Exit using an entry point or use your own entry point to go back (although, exiting through an unknown entry point could lead to even worse places in the Backrooms).
Spend at least 4 days in this level and you will end up in Level 1.
You can rarely find a fire exit, which will lead to Level 1 too.
You can also break through the floor to go to Level 27.
If you find a scratched wall (which is extremely rare), try to break it. It is weaker, and doing so will transport you to Level 111.