Fire

A Heavy on fire.

This article is about fire produced by weapons. For environmental fire, see this article.

“

I appear to have burst into flames. Click to listen — The Spy on the blatantly obvious

”

Fire, or afterburn, refers to the damage-over-time effect inflicted on a player when hit by a variety of weapons, most commonly those of the Pyro. Fire is useful for hit-and-run tactics and for weakening or finishing off an opponent if the damage from the weapon alone is not enough to kill them. This allows attackers to score kills even while dead, as the fire damage may finish off a wounded opponent.

Upon being set aflame, a player's character will automatically scream out that they are on fire, alerting nearby Medics and teammates to their plight. Setting an opponent on fire also creates a disorienting effect on their screen view (flames will engulf the edges of the screen and a burning sound is heard). This can be used to a team's advantage if the Pyro is able to ambush a group of attacking foes. Snipers lit on fire will find it extremely difficult to aim, as the scoped view will move every time the Sniper takes damage from the burning (an effect the Sniper can prevent by equipping the Cozy Camper). When calling for a Medic, the balloon with the Medic symbol will be on fire, notifying a Medic that his teammate is being damaged by afterburn. This helps prioritise burning players as an urgent healing target.

Fire can be used to Spy check. A small burst of flame will ignite an enemy Spy, even if cloaked or disguised. Burning players give off an additional coloured particle effect revealing their true allegiance; this is a useful effect for distinguishing disguised Spies from teammates.

Fire from any Flame Throwers can also be used to disrupt healing and shield resists from the Medi Guns, the patients who set on fire with this behavior will have 25% less healing rate and shield effect from the Vaccinator.

The fire effect starts immediately upon damage from a weapon that causes it. Each fire effect will last for 10 seconds (with the Cow Mangler 5000 is an exception, only lasting 6 seconds). Additional hits from these weapons will restart the duration of the fire back to 10 seconds. Fire damages a player every half-second for 3 HP each tick (1 HP each tick for the Degreaser), totaling 60 damage over those ten seconds (20 damage for the Degreaser). Afterburn damage cannot crit; however, it can mini-crit if the target is under a mini-crit debuff, such as covered in Jarate, marked for death, or if the attacking player is buffed by the Buff Banner.

Note that enemy Pyros cannot be set on fire. While Pyros still take contact damage from fire attacks, they will not take further damage over time. The Pyro does, however, count as on fire for a brief second while he appears with the charred graphical effect after taking damage from a fire-inducing weapon, and while the Pyro takes no additional damage, the Pyro can still suffer critical hits from the Axtinguisher, Postal Pummeler, Sun-on-a-Stick, and Flare Gun, and mini-crits from the Detonator and Scorch Shot. A Spy disguised as a Pyro from either team, however, will still be lit on fire and take afterburn damage.

It is possible to allow gibs to catch fire (if a player is gibbed while on fire) with the cl_burninggibs command set to 1.

Damage and function times

See also: Damage

Damage and function times
Damage type		Fire
Ranged or Melee damage?		Untyped
Damage
Afterburn		3 / tick 60 total
Afterburn (mini-crit)		4 / tick 80 total
Function times
Attack interval		0.5 s
Afterburn duration		10 s
Values are approximate and determined by community testing.

Weapons which inflict afterburn

List of afterburn-inflicting weapons
Soldier	Primary			Alt-fire: Fires a Mini-crit shot which ignites enemies who get hit. It also ignites the player if they are in range.
		Cow Mangler 5000
Pyro	Primary
		Flame Thrower†	Rainblower
		Nostromo Napalmer
		Backburner†
				Afterburn caused by this weapon deals 75% less damage compared to the default Flame Thrower.
		Degreaser
				Fire damage builds Mmmph.
		Phlogistinator
				Fires short range projectiles instead of normal flames.
		Dragon's Fury
	Secondary			Deals Critical hits damage to any already burning players.
		Flare Gun†
				Alt-fire: Detonate flare. Ignites enemies within a certain radius. Deals damage to the player who fired it at the ground or detonated too close. Deals Mini-crit damage to any already burning players if they are hit by the flare impact or flare explosion radius.
		Detonator
		Manmelter
				Shoots a flare that bounces off enemies as well as allies and explodes, igniting all enemies caught in the explosion. Deals Mini-crit damage to any already burning players if they are hit by the flare impact or flare explosion radius.
		Scorch Shot
				Doused enemies are ignited when attacked, applying an afterburn effect for 10 seconds. Includes other Pyros, which are normally immune to the effects of afterburn.
		Gas Passer
	Melee
		Sharpened Volcano Fragment
Heavy	Primary			Surrounds the Heavy with a ring of fire when deployed, igniting anyone who comes in contact with it.
		Huo-Long Heater
Sniper	Primary			Arrows can be ignited by an allied Pyro firing their primary weapon, as well as approaching environmental flames in certain maps.
		Huntsman†	Fortified Compound
Notes		†Includes Festive, Botkiller and Australium variants.
		Afterburn becomes sparkling particle effects for players that are in Pyroland.

Surviving fire

The following will extinguish a player who is on fire:

• Picking up a health pack, thrown lunchbox item, or a dropped lunchbox item from a dead Heavy.
• Touching a Resupply locker.
• Completely immersing one's self in a body of water. Puddles and low-level water (such as in the sewer tunnels in 2Fort) will not extinguish a burning player.
• Being healed by a Medic, Dispenser, or Payload cart for a full second will extinguish flames.
• Being splashed with Mad Milk, Mutated Milk, Jarate, or Self-Aware Beauty Mark from a friendly Scout or Sniper. These classes can also extinguish themselves by throwing their respective containers at their feet.
• Being air blasted by a friendly Pyro.
• Activating the Dead Ringer as a Spy.
• Switching to the Spy-cicle, if it is not already the active weapon, as a Spy.
• Being the recipient of a regular ÜberCharge; a Kritzkrieg or Quick-Fix charge will not extinguish the flames faster than being normally healed.
• Being extinguished by the alternate fire of a friendly Pyro's Manmelter.
• Backstabbing someone while holding the Conniver's Kunai as a Spy.

The following methods do not extinguish the afterburn, but can help burning players survive by healing faster than the afterburn can deal damage or by mitigating afterburn's damage:

• Being healed by a Medic, a Dispenser, or the Payload cart for less than a full second.
• Drinking Bonk! Atomic Punch will stop any afterburn damage, although it may resume after the effects of Bonk! have worn off.
• Any form of weapon-based healing aside from the Conniver's Kunai, such as the Eyelander or Black Box.
• Equipping weapons that increase the player's maximum health, such as the Bootlegger or Darwin's Danger Shield.
• Being buffed by the Battalion's Backup.
• Damage resistance provided by the Chargin' Targe, Splendid Screen, and Tide Turner.
• The Soldier's passive health regeneration while equipped with the Concheror.
• The Sniper's passive health regeneration while equipped with the Cozy Camper.
• The Medic's passive health regeneration.
• The Medic's Oktoberfest taunt.
• The Spy's 20% damage resistance when cloaking.
• The Dead Ringer's 75% damage resistance upon struck by fire.
• The Dead Ringer's cloak damage resistance which fades from 65% to 20% in 3 seconds.

Weapon specific

The following weapons provide additional resistance or vulnerability against fire-based attacks. Note that both contact damage (barring the melee damage from the Sharpened Volcano Fragment) and afterburn damage is modified.

List of weapons modifying fire damage
Scout	Melee			+25% fire damage resistance while deployed.
		Sun-on-a-Stick
Soldier	Secondary			While under the effects, +35% damage resistance to the Soldier and nearby teammates.
		Battalion's Backup
Pyro	Melee			+20% damage vulnerability when active.
		Powerjack
Demoman	Secondary			+50% fire damage resistance on wearer.   Charging extinguishes user.
		Chargin' Targe
				+20% fire damage resistance on wearer.   Charging extinguishes user.
		Splendid Screen
				+15% fire damage resistance on wearer.   Charging extinguishes user.
		Tide Turner
	Melee			+15% damage vulnerability when active.
		Claidheamh Mòr
Heavy	Primary			+20% damage resistance when below 50% health and spun up.
		Natascha
				+20% damage resistance when below 50% health and spun up.
		Brass Beast
	Secondary			While under the effects, +20% damage vulnerability.
		Buffalo Steak Sandvich
	Melee			+40% damage resistance from ranged sources on wearer when active.
		Fists of Steel
				+30% damage vulnerability when active.
		Warrior's Spirit
Engineer	Melee			+20% fire damage vulnerability on wearer.
		Southern Hospitality
Medic	Secondary			While healing, +10% resistance to the selected damage type to the Medic and his patient.   ÜberCharge provides +75% resistance and full crit resistance to the selected damage type to the Medic and his patient.
		Vaccinator
Sniper	Secondary			+50% fire damage resistance on wearer.   Immunity to afterburn.
		Darwin's Danger Shield
	Melee			+20% damage vulnerability when active.
		Bushwacka
Spy	Melee			On hit by fire, immune to fire damage for 1 second and immune to afterburn for 10 seconds.   Can be used to extinguish fire.
		Spy-cicle
	PDA 2			While cloaked, +20% damage resistance.   Reduced afterburn duration while cloaked.
		Invis Watch	Enthusiast's Timepiece
		Quäckenbirdt
				While cloaked, +20% damage resistance.   Reduced afterburn duration while cloaked.
		Cloak and Dagger
				When struck by fire, blocks 75% of incoming damage.   After Dead Ringer activated, 65% damage resistance on wearer which fades to 20% in 3 seconds.   Can be used to extinguish fire.   When activated, gives 3 seconds of afterburn immunity.
		Dead Ringer

Related achievements

General

Escape the Heat Jump into a pool of refreshing water while on fire.

Flamethrower Set five enemies on fire in 30 seconds.

 Soldier

Semper Fry Kill 20 enemies while you are on fire.

 Pyro

Attention Getter Ignite 100 enemies with the flare gun. Burn Ward Ignite 3 Medics that are ready to deploy an ÜberCharge. Controlled Burn Ignite 50 enemies capturing one of your control points. Firewall Ignite 5 Spies who have a sapper on a friendly building. Got A Light? Ignite an enemy Spy while he's flicking a cigarette. Next of Kindling Ignite an enemy, and the Medic healing him. Pyromancer Do 1 million points of total fire damage. Spontaneous Combustion Ignite 10 cloaked Spies. Weenie Roast Have 2 enemy Scouts on fire at the same time.

Baptism by Fire Force 10 burning enemies to jump into water. Combined Fire Use your shotgun to finish off 20 players you've ignited. Cooking the Books Ignite 5 enemies carrying your intelligence. Firewatch Ignite 10 Snipers while they are zoomed in. I Fry Ignite 10 disguised Spies. Makin' Bacon Kill 50 Heavies with your flamethrower. Pilot Light Ignite a rocket-jumping Soldier while he's in midair. Second Degree Burn Kill a burning enemy who was ignited by another Pyro. Trailblazer Ignite 10 enemies that have recently used a teleporter.

 Heavy

Rasputin In a single life, get shot, burned, bludgeoned, and receive explosive damage.

 Engineer

The Extinguished Gentleman Have dispensers you built extinguish 20 burning players.

 Medic

Autoclave Assist in burning 5 enemies with a single ÜberCharge on a Pyro.

Infernal Medicine Extinguish 100 burning teammates.

 Sniper

Friendship is Golden Extinguish a burning teammate with your Jarate.

 Spy

Burn Notice Survive 30 seconds after being ignited while cloaked.

Kill icons

• 

  Death by the Cow Mangler 5000's afterburn

• 

  Suicide by the Cow Mangler 5000's afterburn

• 

  Flamethrower

• 

  Backburner

• 

  Degreaser

• 

  Phlogistinator

• 

  Rainblower

• 

  Rainblower

• 

  Flare Gun

• 

  Detonator

• 

  Manmelter

• 

  Scorch Shot

• 

  Sharpened Volcano Fragment

• 

  Deflected flare

• 

  Hadouken kill taunt

• 

  Armageddon kill taunt

• 

  Huo-Long Heater

• 

  Flaming Huntsman / Fortified Compound arrow

• 

  Flaming Huntsman / Fortified Compound arrow afterburn

Unused kill icons

• 

  Deflected flaming arrow Huntsman

• 

  Deflected flaming Huntsman arrow headshot

• 

  Flaming Huntsman arrow headshot

Update history

October 9, 2012 Patch

• Overhealed players that are bleeding or on fire can now pickup healthkits to remove these conditions.

Unused content

• All classes (except for the Pyro) have an unused death animation when on fire.

Bugs

• A burning player will cease to take damage if the enemy who inflicted the afterburn changes teams, but will visually remain on fire for the default duration.
• Being set on fire and then switching to another team will cause the HUD to have the afterburn fire effect until the player disconnects. However, the player will not say fire-related responses or receive damage.
• Occasionally the afterburn effect will continue to stay on a player that's recently been burnt, but survived.

Notes

Burning ragdolls will not be extinguished when submerged in water.