Alien Swarm: Reactive Drop
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: Bulldog, 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
Achievements
View all 198 →
Insane Campaign: Reduction
0.2%Complete the Reduction campaign on Insane difficulty or harder.
Brutal Campaign: Reduction
0.2%Complete the Reduction campaign on Brutal difficulty.
Silent Station Speedrun
0.2%Complete Silent Station within 4:50 on Normal difficulty or harder without any marines dying.
Operation Sandstorm Speedrun
0.2%Complete Operation Sandstorm within 3:15 on Normal difficulty or harder without any marines dying.
Fallen City Speedrun
0.2%Complete Fallen City within 1:40 on Normal difficulty or harder without any marines dying.
