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"Dealt It..."
- "Whoever Smelt It" Achievement description

Firedamp is a hazardous and flammable gas found leaking in some rooms in The Mines.

Overview Overview[]

Firedamp is a reddish-orange gas that is found leaking from holes on the ground in some rooms in The Mines. Rooms with Firedamp leaks have red signs with fire icons on their doors, as well as orange gas flowing through the gaps under the doors or out of the rooms if the doors have already been opened.

Behavior Behavior[]

The Firedamp is unsafe to breathe and extremely flammable. If a player stays in a room filled with this gas for too long, their vision will slowly darken and blur and their hearing will become muffled until they eventually pass out and die from suffocation, after 53 seconds. Additionally, if the player brings a fire-producing item into a Firedamp-filled room, such as a Lighter with fuel or a Lantern, and activates it, the fire will ignite the gas and explode, instantly killing the player. The Firedamp gas will also act as a light source, although it cannot be relied on in some cases.

Notes[]

  • Having a lit Lighter or Lantern inside a Firedamp room will instantly kill the player. Every other item is safe to use.
    • Using a Candle inside the room is totally safe, which is a bug.
    • If a player explodes and dies, their body parts will be set on fire and have a corroded metal texture.
  • Players constantly lose oxygen every second while inside the room, dying in a approximately 54 seconds.
    • Players can slowly recover oxygen if they enter another room where Firedamp isn't present.
    • Other entities and hazards also affect players' oxygen. Having to be extremely careful when combined. These are Floods, Seek's Goop, Mandrake and Sally.
    • As players lose oxygen, they will lose vision and audition, their camera will tilt more, and they'll hear a high-pitched sound and their own heartbeat.
  • Firedamp rooms are not indicated on the door in The Sewers, only by the gas visible below the next door.
  • Firedamp holes always spawn near the path to the next door, exactly like Gloombat Eggs. This can help players to avoid Dupe and to avoid wasting time.
  • Eyes can't spawn in Firedamp rooms, even with modifiers like "Always Watching".
    • Entities like Giggle and Screech can still spawn, which might be harder to hear due to oxygen loss.

Achievement Related Achievements[]

Whoever Smelt It

Whoever Smelt It
...Dealt it.
Survive a Firedamp leak.

Trivia Trivia[]

  • Despite what some think, Firedamp isn't an entity and is rather a hazard that is dangerous for any item that has ignited.
  • Prior to The Content Update, Giggles were not able to spawn in Firedamp rooms.
  • A status effect titled "InFiredamp" was a concept for the game, but never got added, this effect would activate when in a fire damp room, but was removed due to it having no mechanic
  • "Firedamp" is a nickname for methane gas, a highly flammable gas appearing in mines, particularly coal mines, from organic materials.[1]
    • Unlike DOORS's version of firedamp, real firedamp is odorless and colorless. This was likely adapted to give players a visual cue for the sake of gameplay.

Modifiers Related Modifiers[]

Smelt It
"Increases chance for Firedamp."
Requires 'Whoever Smelt It'
Cannot be used with: 'Dealt It'
Floors: The Hotel, The Mines, The Backdoor (With Admin Panel), The Rooms (With Admin Panel), The Outdoors (With Admin Panel)
Knobs +5%
Dealt It
"Heavily increases chance for Firedamp."
Requires 'See You Soon'
Cannot be used with: 'Smelt It'
Floors: The Hotel, The Mines, The Backdoor (With Admin Panel), The Rooms (With Admin Panel), The Outdoors (With Admin Panel)
Knobs +15%

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