Damage types

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Types of Damage

The Damage Type property of a trigger_hurt entity lets you choose between many types of damage, but it may be hard to figure out what these types of damage do exactly, so below is a list (for Half-Life 2).

If nothing else is stated, each damage hit will (besides damaging you) make you jerk a little, make your screen flash red if you don't have a HEV suit, or provide red HUD directions to display where the damage is coming from if you have a HEV suit.

The damage caused depends on the current difficulty setting:

  • The "Easy" (skill 1) setting causes 25% of the Damage value every half-second.
  • The "Normal" (skill 2) setting causes 50% of the Damage value every half-second.
  • The "Hard" (skill 3) setting causes 75% of the Damage value every half-second.


Generic Damage

Nothing special.

Crush Damage

  • The whole screen flashes red even if you're wearing a HEV suit.
  • Always does 50% of the Damage value every half-second, regardless of difficulty setting.

Bullet Damage

  • Plays bullet impact sounds.

Slash Damage

  • Displays spurts of blood if player HEV suit power is 0.

Burn Damage

  • Plays heat damage sounds. (Something sizzling and the player going "Ouch!".)
  • The whole screen flashes red even if you're wearing a HEV suit.
  • No HUD damage directions are given.
  • (For additional indication, you can add an ambient_generic playing hl1/fvox/heat_damage.wav to make the HEV suit go: "Extrem heat damage detected.")

Freeze Damage

Nothing special.

Fall Damage

  • Always does 50% of the Damage value every half-second, regardless of difficulty setting.
  • The HEV suit will not protect you from this type of damage.

Blast Damage

Nothing special.

Club Damage

Nothing special.

Shock Damage

  • Sparks for every hit.
  • (For additional indication, you can add an ambient_generic playing hl1/fvox/shock_damage.wav to make the HEV suit go: "Electrical damage detected.")

Sonic Damage

  • Plays damage sounds.

Energybeam Damage

Nothing special.

Drown Damage

  • The whole screen flashes blue even if you're wearing a HEV suit.
  • Double HUD damage directions are given.
  • Plays drowning sounds.
  • Always does 50% of the Damage value every half-second, regardless of difficulty setting.
  • The HEV suit will not protect you from this type of damage.

Paralyse Damage

  • HEV suit warning: "Warning: Bloodtoxin levels detected." (hl1/fvox/blood_toxins.wav)

Nervegas Damage

  • HEV suit warning: "Warning: Biohazard detected." (hl1/fvox/biohazard_detected.wav)

Poison Damage

The type of damage a black headcrab inflicts.

  • The whole screen flashes yellow even if you're wearing a HEV suit. (This flash seems to stick sometimes, and may appear the next time the player is hurt.)
  • The HEV suit will not protect you from this type of damage.
  • Always does 50% of the Damage value every half-second, regardless of difficulty setting.
  • HEV suit warns: "Warning: Bloodtoxin levels detected." (hl1/fvox/blood_toxins.wav)
  • HUD displays: "Neurotoxin Detected Administering Antidote"
  • The damage recieved is healed after awhile (even if the player is not wearing a suit, oddly enough).

Radiation Damage

  • Close proximity to a trigger_hurt with this type of damage will set off the HEV suits geiger counter.
  • The HEV suit will not protect you from this type of damage.
  • The whole screen flashes white even if you're wearing a HEV suit.
  • Double HUD damage directions are given.
  • HEV suit warning: "Warning: Hazardous radiationlevels detected." (hl1/fvox/radiation_detected.wav)

Drownrecover Damage

Nothing special.

Chemical Damage

  • The whole screen flashes white even if you're wearing a HEV suit. (This flash seems to stick sometimes, and may appear the next time the player is hurt.)
  • Double HUD damage directions are given.
  • HEV suit warning: "Warning: Hazardous chemical detected." (hl1/fvox/chemical_detected.wav)

Slowburn Damage

Nothing special.

Slowfreeze Damage

Nothing special.