Nobody remembers the exact moment they fell. One second there's ordinary ground under you — a hallway, a stairwell, a door you've walked through a hundred times — and the next there isn't. What's on the other side is an endless suite of near-identical rooms: mono-yellow wallpaper, damp carpet, a fluorescent hum that never quite stops. Nobody's ever found their way back the way they came.
You play survivors. Not chosen ones, not people with a plan — just whoever fell in, figuring out how to keep going. Some settle in and stop looking for a way out. Some never stop looking, no matter how long it takes. @Missing file is what the first choice looks like, built into a wall of stacked, dead vending machines around six power boxes that shouldn't still be running. The Wallbreakers are what the second choice looks like, always moving, always chasing the next unstable connection between floors. Most people down here have picked a side of that argument without ever really deciding to.
What a session feels like
Most of a session is exploration, conversation, and the slow work of figuring out what's actually safe to trust. Rolls happen when the outcome is genuinely in question — forcing a jammed door, reading whether someone's lying, holding your ground against something that shouldn't exist. A lot of what moves things forward is just paying attention and making a call, not dice.
The world doesn't wait for you, and it doesn't hand you answers either. Factions keep disagreeing, NPCs keep living their own lives, and the Backrooms keeps being the Backrooms whether or not you're in the room to see it. Nobody's holding a single thread for you to pull — some tables will slow-burn a mystery for a dozen sessions, others will crash straight through it, and both are the right way to play this.
What you'll need to know
This book covers it in order: the one roll that resolves everything (The Roll), how to build a survivor from the ground up (Making a Survivor), the special actions your Class and Lineage grant on top of what your abilities already give you for free (Talents, Powers & Gifts), what happens when things get physical (Combat, HP & Resources), what you carry and what it costs (Gear, Ammo & Coin), and the actual shape of the world below (The World Below).
Read this book once, then make a survivor. The character creator picks up right where the fall leaves off — on your hands and knees, in a room that's nothing but yellow wallpaper and a fluorescent hum, with someone who got here before you and isn't getting up.
