Rooms & The School

The school is a pure function of the run's random seed: two long corridors ("North Hall" and "South Hall") crossed by a "Main Hall" spine, with rooms filling the blocks between them, plus a fenced playground to the south.

Layout

Room numbers (e.g. "Room 101") are assigned in placement order to whichever rooms are left as plain classrooms. The boiler room sits in the far south-west corner deliberately — the run home at night from the generator is meant to be long.

Doors and locks

Furniture, searching and hiding, by room type

RoomFurnitureSearchable (loot table)Hiding spots
HallwaysLocker banks, cork boards, bins, water fountainsLocker banks (locker), bins (bin)Some locker banks (~34% of them, randomly)
Classrooms / Your ClassroomDesks & chairs in rows, chalkboard, teacher desk, cabinets, cork boards, bin; your own classroom adds a crib, toy boxes and a rugDesks (desk), teacher desk (teacher), cabinets (cabinet), bin (bin), toy boxes in your classroom (toy)Under a desk, under the teacher desk, inside a cabinet; toy boxes in your own classroom
LibraryBookcases, a reading table, beanbagsBookcases (book)Under the reading table
Art RoomShelves, sinks, easels, cabinetsShelves (art), cabinets (art)Inside a cabinet
Music RoomPiano, chairs, shelves, a drumPiano (music), shelves (music)Under the piano
GymnasiumTwo hoops, mats, bleachers, a ball cart, a vaulting boxBall cart (gym)Under the bleachers, inside the vaulting box
CafeteriaLunch tables, a serving counter, bins, vending machinesLunch tables (cafe), serving counter (cafe), vending machines (vending), bins (bin)Under a lunch table, under the serving counter
KitchenCounters, a fridge, shelves, a prep tableCounters, fridge, shelves, prep table (all kitchen)Under a counter, inside the fridge, under the prep table
Boiler RoomThe generator (dead centre), boiler tanks, the fusebox, crates, a pipe rackCrates (boiler)Inside a crate
StorageShelves, cratesShelves and crates (both storage)Inside a crate
BathroomStalls, sinks, a binBin (bin)Inside a stall
Nurse OfficeCots, a medicine cabinet, a desk, a scaleMedicine cabinet (nurse), desk (teacher)Under a cot
Lost & FoundShelves, lost-property binsShelves (lost), bins (lost)Inside a lost-property bin
Staff RoomA couch, counters, a fridge, a round table, locker banksCouch, counters, fridge, locker banks (all staff)Under the couch, under the round table, inside the fridge, inside a locker
PlaygroundSlide, sandpit, swings, a seesaw, a concrete play tube, trees, a benchSandpit (sand)Under the slide, inside the play tube, under the bench

See Loot Tables for exact odds and search times per container kind.

Hallways

The two long halls (North and South) and the Main Hall spine that crosses them make up the school's circulation space. Bob spends most of his patrol time here, and the spine's two crossroads (where it crosses each long hall) are deliberately kept open in the generation code — without that fix the east wing would be unreachable.

A note on how it's built

Everything about the school — walls, doors, furniture, which room is which — comes from a single seed number, and the host shares only that number in co-op; every client rebuilds the identical building from it. On unlucky seeds, furniture can accidentally seal a room off from its own door; a connectivity-repair pass finds and removes the specific offending pieces before the level is ever shown to you.

Who you'll find where

RoomWho's there
Your classroomMrs. Honeywell (day, at the chalkboard); the crib
Cafeteria (or kitchen, if no cafeteria)Meredith, at the serving counter, all day — see Meredith
GymnasiumJerry's home base — he starts and returns here between classes — see Jerry
Boiler roomThe generator; the Card Kid encounter is triggered from here — see Card Boy & the Taker
Any hallway (not your classroom)Where the Big Boys Club stages its one-per-run cutscene — see The Big Boys Club

Mrs. Honeywell, Meredith, and Jerry are all purely local — their positions never need to be networked, since every player's copy of the school is identical down to the last piece of furniture. See Characters for which of the school's cast are shared (host-simulated) versus purely local to each player.

Grump the Baby Destroyer Wiki · last updated 2026-09-13 · matches game commit af3955c Play the game · Game source