1. The Thermometer (Optional)
Make sure this is actually the step you are on. If an item or prompt is missing, backtrack one room and check the inventory first.
Read the Boiler Room Before Choosing a Door
The Boiler Room is dark and dangerous. You need to be stealthy and observant.
1. The Thermometer (Optional)
At the start, you may find a Thermometer on a table.
- Readings: 125°F / 51.5°C means a Female Deathmoth is nearby. At 140°F / 60°C, the Hive is very close—turn around instead of pushing deeper.
- Pro Tip: You don't need the thermometer if you are observant. Look for heat waves (shimmering air) distortion on your screen. That is the visual cue for a moth.
2. Dealing with Death Moths
You will encounter large Female Death Moths. Unlike the small male ones in the hotel, these are deadly.
- Stealth: You can crouch and walk underneath them safely as long as you don't touch them.
- Aggro: Do NOT shine your flashlight on the big moths. They hate light and will attack you instantly.
- Bug Spray barrier: If a moth blocks the route, use the red Bug Spray Valve on the nearby pipe. It releases insecticide gas that creates the opening; it is not a steam valve.
3. Navigation & Fake Doors
The maze is confusing.
- The Trap: There are many doors in the maze. Do NOT open random doors. Most of them are traps filled with swarms of moths that will kill you.
- The Path: Follow the main corridors. If you get lost, try to stick to a single wall (e.g., left wall) or follow the path shown in the video.
4. The Exit
The exit is a specific door marked with a green "EXIT" sign.
- Location: It is usually located at the end of a long, straight corridor after you pass a few moth encounters.
- Action: Open the door marked "EXIT" to leave the Boiler Room and enter the Pipe Run, where the route continues toward Level Fun.
Death Moth Warnings and Exit Checks
- Don't Run: Running makes noise. Crouching is safer near moths.
- Use the valve, not steam: the red Bug Spray Valve releases insecticide gas and creates the safe opening for a blocked route. Save any carried spray for Male Deathmoths in the hotel.
- Brightness: Keep your gamma up to see the heat waves clearly in the dark.
Use Temperature as an Early Warning, Not a Compass
The thermometer tells us what is close, not which corridor reaches the exit. A normal room reads about 72°F. Readings around 120–133°F point to a nearby Female Deathmoth, while 140°F is the Hive warning and a reason to turn around. We still check the walls, door colour, and exit sign before committing, because following heat alone leads straight into the rooms we want to avoid.
- When the screen begins to blur: lower the flashlight, crouch, and back out before running. Female Deathmoths react to careless light and movement.
- Blocked corridor: trigger the red Bug Spray valve, wait for the gas barrier to affect the moth, and move through during that window instead of trying to squeeze past its model.
- Door check: the Boiler Room has several convincing doors, but the real exit is the one with the illuminated Exit sign. Purple or unsigned doors can lead toward a Hive.
Checkpoint Discipline in Co-op
The three checkpoints are more useful as regroup markers than as permission to scatter. We move from one checkpoint to the next with a single thermometer caller. If a player is grabbed, the others do not chase into the hot room; they hold the last safe junction and rebuild the route after the respawn.
Level 5 (Boiler Room) Walkthrough Video
Video chapters
Player route notes
Things we check before pushing ahead
We use this as the quick “don’t make the same mistake twice” checklist. If your room, spawn, or prompt does not match the video, stop and check the normal route first—patches and co-op timing can make an old shortcut look tempting when it simply will not work.
2. Dealing with Death Moths
Look around slowly before guessing. Props can hide chairs, switches, notes, and pickups; a second camera angle is usually faster than brute force.
3. Navigation & Fake Doors
Call out what was pressed, collected, or opened. It prevents the classic “we all thought somebody did it” reset.
4. The Exit
If a skip behaves inconsistently, leave it and take the intended route. A clean run beats getting stuck in geometry.
Multiplayer tips
In the Boiler Room, one player watches the thermometer and calls danger while the others move between doors. Stay crouched near moths and wait for the call instead of having everyone test a different exit.
Encounter file
Entities in this level
What each entity does on this route, and the move that keeps the encounter under control.
Female Deathmoth
How it appears here
Female Deathmoths and the Hive turn heat readings into the main navigation warning. The red valves release Bug Spray gas that blocks or moves the threat long enough to pass.
How to avoid it
Treat 120–133°F / 49–56°C as a nearby-moth warning and leave immediately at 140°F / 60°C. Crouch, lower the light, and cross only after the gas barrier is active.