Alien Swarm Parasite

“

You have thirty seconds to live! Click to listen — The Medic on parasite infections

”

The Alien Swarm Parasite is an unlockable headwear item for all Classes. It is obtained by earning the Hat Trick achievement in the game Alien Swarm by completing 2 co-op missions (regardless of difficulty setting) online. This item can only be acquired from the achievement.

The hat description was written by Grug. It was slightly edited by Valve.

Related Achievements (in Alien Swarm)

Hat Trick Complete 2 co-op missions online. Earns a Team Fortress 2 parasite hat.

Trivia

• This hat was speculated days before the game was even released due to the Heavy appearing on the icon for the Hat Trick achievement.
• The hat resembles a "Template:W", from the Template:W franchise, or a "Headcrab", a parasitic enemy from the Half-Life series.
• If you taunt with the Sniper's Kukri, Shiv or Bushwacka, the Sniper will very easily pull the parasite off of his head, before putting it back on.
• When the hat is shot after falling off of its owner, it will bleed which proves that the hat is, or once was, alive.
• This is the only hat that appears on different locations on the head depending on what class is wearing it.
• Originally, the Heavy on the "Hat Trick" achievement icon had a beard.
• Like most promotional hats, the Alien Swarm Parasite does not count towards the recrafting hat blueprint.
• Even though some Alien Swarm Parasite hats are tradable, all new ones that are owned after the Mann-Conomy Update will not be possible to trade.
• Even though on the Alien Swarm achievement the Swarm is on top of Heavy's head, in tf2 its on the side of Heavy's head.

Gallery

• ParasiteScout.png

  Scout

• ParasiteSoldier.png

  Soldier

• ParasitePyro.png

  Pyro

• ParasiteDemoman.png

  Demoman

• AlienParasiteHat.png

  Heavy

• ParasiteEngineer.png

  Engineer

• ParasiteMedic.png

  Medic

• ParasiteSniper.png

  Sniper

• ParasiteSpy.png

  Spy

• ParasiteTauntSniper.png

  Sniper taunting