Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.
User reviews:
Overall:
Very Positive (3,444 reviews) - 93% of the 3,444 user reviews for this game are positive.
Release Date: Apr 20, 2017

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Play Alien Swarm: Reactive Drop

 

Recent updates View all (10)

May 12

Alien Swarm: Reactive Drop Update Released

  • Fixed speedrun times for Tilarus 5 campaign in game UI
  • Corrected the description of the Healing Amplification Gun
  • Improved UI description for Desert Eagle
  • Changed speedrun time to 3:30 for Tilarus 5: The Factory
  • Fixed doors on Tilarus 5: SynTek Hospital. It was easy to get stuck in double doors.
  • Improved AI navigation on Tilarus 5: SynTek Hospital
  • Bots now do damage from Grenade Launcher to other marines. Added rd_marine_take_damage_from_ai_grenade cvar to control this.
  • Don't award Perfect achievement if a challenge was active
  • Fixed errors in 50cal_tripod.vmt material

45 comments Read more

April 28

Patch for Networking Bandwidth Rates

Networking

  • Fix game stutter related to insufficient networking bandwidth rates for 8 slot servers. For 8 slot servers net_splitpacket_maxrate will be automatically increased to 30000(default is 15000). This applies to both listen and dedicated servers. rd_adjust_sv_maxrate 0 can be used to disable the automatic adjustment. Both sv_maxrate and net_splitpacket_maxrate will not be changed if server has higher values set.

22 comments Read more

About This Game

Alien Swarm: Reactive Drop extends Alien Swarm, bringing more of everything: maps, aliens, game modes, guns... And most importantly Steam Workshop support.

  • Tactical co-op for up to 8 players with a top-down perspective
  • Steam Workshop support for community maps and challenges
  • New co-operative campaigns
  • Challenges: Modifications of the game, just like Mutations in Left 4 Dead 2
  • PvP: Deathmatch, Gun Game, Instagib, and Team Deathmatch
  • Singleplayer: Play with improved bots on all our official maps
  • New Aliens: HL2 antlion guards and more
  • New Weapons: Desert Eagle, Devastator, and Combat Rifle, with more to come
  • Over 100 Steam achievements
  • Leaderboards: compete with your friends for the fastest mission completion
  • Improved spectating: see hacking minigames and mouse movements in real time

System Requirements

    Minimum:
    • OS: Windows® XP or above
    • Processor: Pentium 4 3.0GHz
    • Memory: 2 GB RAM
    • Graphics: DirectX 9 compatible video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
    • DirectX: Version 9.0
    • Storage: 10 GB available space
    • Sound Card: DirectX 9.0c compatible sound card
    Recommended:
    • OS: Windows® XP or above
    • Processor: Intel core 2 duo 2.4GHz
    • Memory: 4 GB RAM
    • Graphics: DirectX 9 compatible video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
    • DirectX: Version 9.0c
    • Network: Broadband Internet connection
    • Storage: 10 GB available space
    • Sound Card: DirectX 9.0c compatible sound card
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