Alien Swarm Player Count: Is It Dead?

Alien Swarm achievements

Alien Swarm has 66 Steam achievements. On average a player has unlocked 23.3% of them; the rarest, Nuke From Orbit, is held by 15.0% of players.

• Technician SecuredFinish a mission without the tech getting killed.55.6%
• Hat TrickComplete 2 co-op missions online. Earns a Team Fortress 2 parasite hat.55.1%
• Quick and DeadKill a Swarm Boomer before it inflates.47.3%
• Shield DownDeliver the finishing blow to a Swarm Shieldbug.43.1%
• Protect the TechGuard the squad's tech so that he takes no damage during the hack.41.1%
• Quick LoadSuccessfully perform a fast reload.40.5%
• Seal of QualitySeal a door with the welder.38.7%
• Zero MortalityComplete a mission on Normal difficulty or harder without any marines dying.36.4%
• Under the GunRoll under a Swarm Ranger projectile.35.4%
• Clear FiringKill 25 drones without friendly fire. Four marines must be present in the mission.34.1%
• SharpshooterComplete a mission with better than 90% accuracy.32.7%
• Close EncountersKill 20 Swarm with melee attacks in a single mission.32.2%
• On the Ready LineKill 1,000 Swarm.31.7%
• Infestation SaviorCure an Infested marine.29.3%
• Easy CampaignComplete the Jacob's Rest campaign on Easy difficulty or harder.29.3%
• Parasite PuncherKill a Swarm Parasite with a melee attack.27.6%
• Scrambled EggsDestroy all Swarm Eggs in a mission without allowing any to hatch.27.0%
• Smoking BarrelsKill 5 Swarm with explosive barrels in a single mission.27.0%
• Normal CampaignComplete the Jacob's Rest campaign on Normal difficulty or harder.25.7%
• Autogun ExpertKill 250 Swarm with an Autogun.25.5%
• Group HealHeal all 4 marines with a single Heal Beacon.25.1%
• Assault SpecialistKill 250 Swarm with the Assault Rifle.24.8%
• GunslingerSuccessfully perform 5 fast reloads in a row.23.6%
• Prototype ProfessionalKill 250 Swarm with a Prototype Rifle.23.3%
• PyrotechnicianKill 250 Swarm with a Flamethrower.23.2%
• Electro-StunnedStun 6 Swarm with a single Stun Grenade.22.8%
• Armory AccessUnlock all the available weapons.21.6%
• Blast RadiusKill 6 Swarm with a single Grenade.21.2%
• Short Controlled BurstsComplete a mission with no friendly fire incidents. Four marines must be present in the mission.20.7%
• Ammo TechnicianDeploy 10 ammo stashes that are used by other marines.20.3%
• Vindicator VeteranKill 250 Swarm with a Vindicator.20.2%
• Stay FrostyFreeze 6 Swarm with a single Freeze Grenade.19.8%
• Bug StomperKill 100 Swarm Grubs.19.6%
• Damage AmpedKill 15 Swarm with all four marines under the effects of a Damage Amp in a single mission.18.5%
• Hard CampaignComplete the Jacob's Rest campaign on Hard difficulty or harder.18.5%
• Small Arms SpecialistKill 250 Swarm with PDWs.18.4%
• Shotgun SpecialistKill 250 Swarm with a Shotgun.18.2%
• Another BughuntKill 5,000 Swarm.18.2%
• Static DefenderKill 500 Swarm with deployable Sentry Guns.18.1%
• Circuit BreakerComplete 10 wire hacks without access being logged.17.4%
• Peace MedicHeal 300 points of damage in a single mission without dealing any non-melee damage to the Swarm.17.3%
• Hornet Barrage ExpertKill 100 Swarm with Hornet Barrages.17.0%
• Minigun MasterKill 250 Swarm with a Minigun.16.8%
• Pistols ExpertKill 250 Swarm with Twin Pistols.16.6%
• High Voltage ExpertKill 250 Swarm with a Tesla Cannon.16.4%
• PerfectComplete a mission on Normal difficulty or harder without receiving any damage.16.3%
• Slaughter SoldierKill 250 Swarm with a Chainsaw.16.3%
• Tactical Explosives ExpertKill 100 Swarm with Laser Tripmines.16.2%
• Railgun SpecialistKill 250 Swarm with a Rail Rifle.15.9%
• Firewall SpecialistKill 100 Swarm with Incendiary Mines.15.9%
• Rydberg Reactor Speed RunComplete Rydberg Reactor within 3:10 on Normal difficulty or harder without any marines dying.15.8%
• Professional MarksmanKill 250 Swarm with a Marksman Rifle.15.7%
• Grenadier ExpertKill 250 Swarm with a Grenade Launcher.15.6%
• Insane CampaignAwarded for finishing the Jacob campaign on Insane difficulty.15.5%
• Landing Bay Speed RunComplete Landing Bay within 1:25 on Normal difficulty or harder without any marines dying.15.4%
• Cargo Elevator Speed RunComplete Cargo Elevator within 2:50 on Normal difficulty or harder without any marines dying.15.4%
• HardcoreComplete any mission on Brutal difficulty with Onslaught and Hardcore Friendly Fire enabled.15.4%
• Security ExpertComplete 10 computer hacks without access being logged.15.3%
• Kill Them AllKill 25,000 Swarm.15.3%
• Deima Surface Bridge Speed RunComplete Deima Surface Bridge within 2:30 on Normal difficulty or harder without any marines dying.15.3%

Showing the 60 most unlocked of 66 achievements.

Global unlock rates from Steam, most common first.