Mainline Stages are stages that must be completed in order to complete any run of The True Backrooms: Renovated.

Endless Office[]

Main article: Endless Office

Endless Office is the first mainline stage in The True Backrooms: Renovated.

It resembles an empty office and has loud buzzing fluorescent lights with yellow wallpaper on the walls. Occasional speakers on the ceiling or electrical outlets on the walls can be found. These serve no purpose other than decorations. There are also decorational vending machines, chairs, tables, and water dispensers found together in certain areas of Endless Office.

Overtime[]

Main article: Overtime

Overtime is the second mainline stage in The True Backrooms: Renovated.

The player starts off in a tunnel reminiscent of old-fashioned pipe tunnels. A flashlight is needed mostly everywhere, due to the fact it is extremely dark. After climbing out of the initial tunnel and stepping out of the broom closet, there is a double door to the right labeled with an exit sign. However, that is not the real exit.

Phantoms[]

Main article: PhantomsPhantoms are the only entities in Overtime. They have a small chance of spawning behind Trapped Doors. A phantom is guaranteed to spawn at the first door if the player opens the door before the scratching sound stops. Phantoms appear on both the upper and lower floors, with the intent to jumpscare the player and increase their paranoia.

It's Too Much[]

Main article: It's Too Much

It's Too Much is the third mainline stage in The True Backrooms: Renovated.

It's Too Much resembles an abandoned office building. It's Too Much has slightly dim fluorescent lighting and the occasional green lights. It supposedly has a breeze that, "smells like gasoline," according to the messages when entering this stage. Vending machines and plants are also present here, as well as six light switches scattered throughout the stage.

Great Deals[]

Main article: Great Deals

Great Deals is the fourth mainline stage in The True Backrooms: Renovated.

Great Deals portrays an abandoned shopping mall plaza with closed up department stores. There are many areas that snake downwards, including a parking garage deep underground. There is a locked blue door that requires you to go down a staircase to find a room with multiple small rooms, one of them having the key you need.

Watchman[]

Main article: Watchman

The entity in this stage is called Watchman, and is only encountered once you pick up the key, which is needed to progress further. The indication that the entity has spawned is an alarm, as well as multiple lights turning red. It is extremely fast, and will constantly track the player's location at all times and path find to them. The entity will despawn when the player successfully goes up the stairs, or if the entity manages to catch the player.

Closing Day[]

Main article: Closing Day

Closing Day is the fifth mainline stage of The True Backrooms.

Closing Day resembles a dead mall, dimly lit with a closed-off, unopenable door on the southern side of floor 2. Plants adorn the final area which is blocked off by gates alongside dead trees. Plants and decorative but nonfunctional lamps can be found on the lower floor and the exit hallway. Some shutters are from Great Deals while the others are just chain shutters.

Substrata[]

Main article: Substrata

Substrata is the sixth mainline stage of The True Backrooms.

Substrata is a rocky-like underground level. The first area consists of rocky tunnels that is similar to Stage 2, while the second area consists of smooth, carved-out tunnels with power boxes controlling gates and loose power slots which volt electricity out of them. The third area consists of huge pillars and huge rooms carved out.

Buzzer[]

Main article: Buzzer

Once you enter the second area, you will need to find power boxes behind doors and put them in the main power controller at the end of the second area. There you will see Buzzer behind a gate being zapped by a loose power slot. Putting two power boxes in unlocks the big gate and some small gates, but Buzzer will still be zapped by the loose power slot and cannot move. Putting three power boxes in frees Buzzer, unlocks all gates, and activates the elevator power. You should run to one of the rooms near the elevator where there will be an activated loose power slot where you can stun Buzzer when he is chasing you, allowing you to go down the elevator and make your way to the exit.

Natura[]

Main article: Natura

Natura is the seventh mainline stage in The True Backrooms.

This stage is not a maze like a lot of other stages, instead it is more like a nature walk where you walk through various rooms until reaching the exit. All the surfaces (except the floor in the rooms) are made of concrete tiles. There are occasional windows that glow a very bright white. There is also an abundance of plant life in Natura, housing grass, trees, and white flowers. Most of the level is made up of these rooms, and there are pitch-black hallways between them. The whole time Natura music is playing in the background, until you are in sight of the exit door, where the music starts to end.

Purgatory[]

Main article: Purgatory

Purgatory is the eighth stage of The True Backrooms.

Purgatory supposedly "smells like mildew." It is dimly lit with cagelights plastered over walls with smooth, brown bricks and has a genuinely nonsensical architecture. There are exits to rooms consisting of walls with circular holes and there are many pillars plastered over purgatory's right and left rooms. The material is completely uniform consisting of metal for objects and the walls and ground being made of smooth bricks. The left room at the start has an opened door leading to a carpeted room with a lever in it, opening the starting room. There are also pipes and puzzles in the main room. To exit, you need to firstly pull the lever in the left room and open the gate to the main pillar area. You must solve all 3 puzzles while the entity is lurking around to open the gate at the end of the pillar area and exit.

The Inspector[]

Main article: The Inspector

The Inspector is an entity who does not seek to harm you. They will not harm you unless you touch them. If you happen to fail a puzzle however, they will beeline towards you faster then your running speed, making it so you cannot escape.

Delay[]

Main article: Delay

Delay is the ninth mainline stage in The True Backrooms.

Delay has tiled walls, with the bottom half of the wall being green, and the upper half being grey extending up to the ceiling, which appear yellow due to the lighting. The ceiling in the square hallways do not have tiles, and has yellow fluorescent lights. The floor is made up of yellow concrete. The round hallway's walls make up the ceiling. At the start of the stage on the right there is a vending machine and a room with a large mechanical gate, and on the left there is the actual stage with the maze inside it. The hallways themselves vary. Some are circular, whilst some are box corridors. Furthermore, the length of the hallways also vary. The ambience in this level are the same machinery sounds in the old Stage 2 and Stage 3. The music playing is an edited version of Loyalty Freak Music - Shoepop.

Petrichor[]

Main article: Petrichor

Petrichor is the tenth mainline stage of The True Backrooms.

Petrichor has stairs that go up into the courtyard, and a locked gate. You must get a key from the shed to unlock this gate. The shed leads to another courtyard where gravity is flipped for you and you are on the walls of it. Near the top of the new courtyard you can find a bench with a key on it. In front of the bench is numerous buildings, rotated variously.

Nobody Is Around To Help[]

Main article: Nobody Is Around To Help

Nobody Is Around To Help is the eleventh mainline stage of The True Backrooms.

This stage spawns you on grass terrain, with crimson fog and some darkness. Most of the buildings are empty, but one of them has a basement, and a room in the basement with a silver key which will open an apartment door next to a bench and a lamp. Going up, open the only door unlocked. You will enter a room with text reading "IT RAINS" multiple times over what seems to be a sleeping bag while vibrating. Touching it will send you to the Eternal Lounge.

Eternal Lounge[]

Main article: Eternal Lounge

Eternal Lounge is the twelveth and the final mainline stage of The True Backrooms. It does not have a number.

Eternal Lounge is a lounge-like area. You will spawn in a small room with a flashlight illuminating a door. Open the door to access Eternal Lounge. You will be greeted with pillars and a gate with a padlock on your left. On your right you will see stairs. Go down these stairs and you will see a key on the desk and paintings resembling levels you have seen and some of the Punishment stages. Once using the key on the gate, you will open the gate and discard the key. Following the path will lead you to a large room with three doors. One of the doors will open if you have gotten the Neutral ending, True ending, or Bad ending. The other three endings have separate entrances. Keep following your designated path to exit this level and go to your ending.