All Levels

Where everyone starts. Endless yellow office, soggy carpet, fluorescent lights that won't stop buzzing. Nothing hunts you hard here yet, but the Bacteria drifts the halls and your sanity quietly drains the longer you wander.

The first real level. A huge warehouse and parking sprawl where sanity starts draining for real and the Skin-Stealer turns up, copying other survivors to get close. The way out is a color-locked elevator.

A giant underground highway tunnel that runs out of sight in both directions, lined with numbered doors that each open onto a different level, plus an abandoned M.E.G. base off to one side. It's the crossroads the route keeps coming back to.

A cramped, sweltering maze of concrete tunnels and fat industrial pipes. Sound carries down here, and partway through a Smiler kicks off a scripted chase that doesn't let up until you're out.

A dim power substation split into zones, prowled by Hounds and laced with electrified puddles that kill on contact. There's no keypad here, despite what some guides claim. The whole level is the puzzle.

Cubicle floors and meeting rooms left mid-shift. One of the calmer stretches, but two Window entities watch the hall to the puzzle room, and cameras will rat you out if you get sloppy. There's no fixed code, only a counting puzzle.

A rotting multi-floor hotel of lobbies, guest rooms, a mailroom and a boiler room. Deathmoths infest it, a Skin-Stealer and a Hound stalk it, and the room you need is locked with a code the game rerolls every run.

A party room gone wrong. Streamers, confetti, primary colors everywhere, and Partygoers packed in among all of it. One of the levels nobody forgets.

The famous Poolrooms. Bright white and tan tiles, shallow turquoise water, sunlight from nowhere. After the funhouse it feels like a held breath, and it fully restores your sanity. The catch is which rooms you're allowed to walk into.

A long red-lit hospital corridor with sirens blaring and a Smiler plus a pack of six Partygoers on your heels from the first second. It's billed as the most dangerous level for the simple reason that it never stops chasing you.

A trap dressed up as freedom. A modern, almost silent library with THE END spelled out across the middle, presumed to be a web spun by the thing that lives in it. The lights go out on a timer, and that's when the Scratcher moves.

A grainy, hand-drawn-looking town of grass hills under a floating castle, everything washed in film grain. Safe by day, deadly at night, and capped by a boss fight in the sky. There's no password here, whatever the old guides say.

A pitch-black maze where you can't see your own hands. The game hands you a LiDAR scanner that paints dots of light on whatever it hits, and that's the only way through. A blind Wretch patrols the first half.

An endless black ocean dotted with houses, and the game's first real water level. You start in a flooded home and travel boat to boat while something circles below, waiting for the fog.

Dark natural caves and flooded tunnels, a break from all the man-made floors but no safer for it. Female Deathmoths nest by the mushrooms and a pair of Skin-Stealers hunt with flashlights of their own. There's no code, only nerve.

Level 0 if it had been left to rot for decades. An arrow-marked maze opens into a hall of pillars and boarded-up doors, with the Bacteria drifting through it all.

The striking 'beautiful Backrooms' level: a grey hotel modeled on the real Heathrow Holiday Inn, wrapped around a courtyard of 114 windows. It's also one of the only levels in the game with a fixed numeric code, which makes it a favorite to look up.

A dark residential neighborhood at night, with a big fenced house (an old M.E.G. outpost) at the top of the map. Wretches guard the doors and The Eye drifts the streets. No keypad, just a power run.

An endless foggy field of tall wheat dotted with red-fan windmills, with Facelings working and wandering the rows. The crops hide both your cover and the things moving through them.

An infinite retro arcade with an elevator and a big M.E.G. machine at its heart. This is the end-game stretch and the route to the true ending, so its code is one of the most searched in the whole game.

A M.E.G. civilization area built like a layered parking structure, where you no-clip down through the floors. Smilers, a Bone Thief and a lone Skin-Stealer share it with you, and a stoplight warns how dangerous each drop is.

A quiet snack-bar stretch of vending machines and counters. No entities reported, just a typewriter puzzle standing between you and the door.

A red-lit hotel of carpeted hallways and hanging exit signs, with blue corridors that act as safe zones. The Clump and a Smiler give chase once you trip the trigger.

The Poolrooms drowned and switched off. You cross dark, flooded tile sections by Floatie Boat, alternating with lit expanded areas, while the Clump hunts and the water itself is toxic.

A bigger, meaner Level Fun split into four themed sectors (Party, Playhouse, Arcade and Funhouse) spoking off a central ballpit room. Party Hosts watch the ceilings, ready to scream and bring the Partygoers down on you.

A place built like a school, starting in a classroom of pillars and cluttered desks that opens into long hallways. A friendly Partypooper will walk you out, if you follow his lead.

The last level of the main route, layered like Level 0.2 stacked on Level 0.3 and crossed by an elevator you drive with a lever. Finishing it plays out the Wrong Door, the first of the game's five endings.

The small, completely safe M.E.G. bunker you wake up in after every ending except the true one. A couple of rooms with bunk beds and a base area whose glass cases hold pinboards of level layouts.

A rotted-out version of Level 0, moldy carpet, missing ceiling tiles, and air so thick with bacteria that your breathing meter drains the whole time you're inside. It's the first leg of the route to the Empty City ending, reached from The Bunker through the ID-card door, and the one alternate-ending level where the clock is really working against you.

A vast indoor concrete complex with a floor of real grass and wildflowers and big windows onto a city outside. There are no entities here at all, the threat is the level itself. The note at the entrance gives the one rule that matters: don't stay still.

A dilapidated two-story pink house you reach from Level 6 with the ID Card. Its resident, Mr. Kitty, stalks the halls, and the whole house is the route to the Pink House ending, a slow, tense collect-a-thon built around never taking your eyes off him for long.

An endless dark spiral staircase, named for the largest 64-bit integer, with openings that look out onto a white void. Reached from Level 1's upper floor with the ID Card. It's completely safe; the only way to lose is to jump too early.

A tiny easter-egg room hidden off Level 188, and despite the name you reach it through normal play, not by cheating. Tan walls, one ceiling light, and a door at the top that knocks now and then. Nothing in it, nothing to do.