Explosive gases

Explosive gases are commonly encountered in underground locations and buildings, such as Warrington trainyard and Our Lady of Hope Hospital. They have also been encountered in a few outside locations, usually near ovens or gas lines.

How to spot the gases[]

• The air will start to distort as one stands still and looks through the gases.
• When one fires a weapon that is a source of ignition (flamer, energy weapons, etc.) the immediate area will ignite in flames.
• The source is a pipe that has been broken/cut, which can be found by searching the surrounding area.

Notes[]

• The gas ignites when an ignition source is triggered within it. The following will ignite gas:
  • The projectile or beam of any Energy Weapon included in the vanilla game (those from add-ons do not appear to have the same effect).
  • The firing of any bullet-based weapon; the point of ignition will be the weapon itself. Flying bullets will not trigger the gas, but the impact of bullets from the Zhu-Rong v418 Chinese pistol create a gas-igniting flame.
  • Any explosive or explosion.
  • The presence of any open-flame weapon (Shishkebab, flamer, heavy incinerator): presence meaning it is active and in someone's hand.
• Use caution when igniting the gases as it can cause damage and knock one down if they are too close.
• This can also be used as a weapon since enemies and all other characters will experience the same effects.
• This is a trap and is meant to harm/kill creatures and humans. It is used by Horace Pinkerton and Reilly's Rangers for this.
• Bio-gas canisters are used by the player character to create explosive gas. They can only be found with the Point Lookout add-on.

Appearances[]

Explosive gases appears in Fallout 3, Fallout: New Vegas and Fallout 4.