Landing Bay 1st person view 02

Landing Bay, First Person view

Alien Swarm: Reactive Drop Edit

Alien Swarm: Reactive Drop launched with eleven campaigns in total. The first nine have speedrun leaderboards and achievements, the tenth one only has speedrun leaderboards, and the last one has neither due to being a player-versus-player campaign rather than a co-op campaign like the rest.

Jacob's Rest Edit

Area 9800 Edit

Lana's Escape Edit

Operation Cleansweep Edit

Orion's Threat Edit

Paranoia Edit

Research 7 Edit

Tears for Tarnor, Ch.1: Insertion Edit

Tilarus-5 Edit

Bonus Missions (no Steam achievements) Edit

Deathmatch (no speedrun leaderboards or Steam achievements) Edit

  • DM Desert
  • DM Deima Surface bridge
  • DM Residential
  • DM Test Lab

Alien Swarm SourceEdit

Main article: Alien Swarm Source

Alien Swarm Source launched with a single official Campaign, Jacob's Rest. This campaign consists of 7 maps which are listed below. Players can play a tutorial offline. The 2 missions Landing Bay and Cargo Elevator are played consecutively, but without gaining experience. The first truly recognized community campaign expansion is Tears for Tarnor.

Jacob's RestEdit

Tears for TarnorEdit

Alien Swarm 2K4Edit

Main article: Alien Swarm 2K4

Alien Swarm 2K4 launched with two official campaigns Sigma and Ortega, and later added four community campaigns Phalanx, Telic, Escape From Rhea and Upsilon. Two single mission maps were also released, Aspirant and SynTek Bio Labs. Each of these campaigns consisted of several interlinked maps which are listed below in the order of their release.


  • Barracks
  • Observation
  • Reactor Core
  • Rescue
  • Research
  • Salvage
  • Uplink


  • Boarding
  • Engineering
  • Cargo
  • Flight Deck
  • Navigation


  • Aqueduct
  • Saviour
  • Daylight
  • Mercury
  • Fetch
  • Sabotage
  • Tunnel
  • Underneath

Escape From RheaEdit

  • Phoenix
  • Nightmare
  • TrenchWar
  • Bunker
  • Specimen
  • Beggar's Point


  • Fluid Storage
  • Habitation
  • Greenhouse
  • Labs
  • Databank
  • Exodus


  • Cleanup
  • BioLab Facility
  • Aspirant
  • Depot
  • Paracelsus
  • Lost Contact SE8

Custom MapsEdit

See Custom Maps

External linksEdit

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