Alien Swarm Achievements

Here is the full list of all 66 Alien Swarm achievements.

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  • Clear Firing

    Kill 25 drones without friendly fire. Four marines must be present in the mission.

  • Short Controlled Bursts

    Complete a mission with no friendly fire incidents. Four marines must be present in the mission.

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  • Shield Down

    Deliver the finishing blow to a Swarm Shieldbug.

  • Blast Radius

    Kill 6 Swarm with a single Grenade.

  • Sharpshooter

    Complete a mission with better than 90% accuracy.

  • Perfect

    Complete a mission on Normal difficulty or harder without receiving any damage.

  • Scrambled Eggs

    Destroy all Swarm Eggs in a mission without allowing any to hatch.

  • Bug Stomper

    Kill 100 Swarm Grubs.

  • Parasite Puncher

    Kill a Swarm Parasite with a melee attack.

  • Close Encounters

    Kill 20 Swarm with melee attacks in a single mission.

  • SynTek Residential Speed Run

    Complete SynTek Residential within 2:30 on Normal difficulty or harder without any marines dying.

  • Sewer Junction Speed Run

    Complete Sewer Junction within 1:30 on Normal difficulty or harder without any marines dying.

  • Timor Station Speed Run

    Complete Timor Station within 4:25 on Normal difficulty or harder without any marines dying.

  • Outstanding Execution

    Complete a campaign on Normal difficulty or harder without any marines dying.

  • Zero Mortality

    Complete a mission on Normal difficulty or harder without any marines dying.

  • Hat Trick

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

  • Brutal Campaign

    Awarded for finishing the Jacob campaign on Brutal difficulty.

  • Hardcore

    Complete any mission on Brutal difficulty with Onslaught and Hardcore Friendly Fire enabled.

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