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Games Like Alien Swarm: Reactive Drop - SDK

60+ similar titles based on shared tags and player behavior. Themes include Free to Play, Action, Multiplayer, Shooter.

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  1. #1 Alien Swarm
    97% matchVery Positive95% of 21,613 reviews2010
    Dev: Valve
    Windows
    Median: 2.4 hrsMean: 35.9 hrs≥1hr: 65%

    Co-operative multiplayer game and complete code base available for free.

    Why similar: Multiplayer 100%

  2. #2 Alien Swarm: Reactive Drop
    96% matchVery Positive95% of 23,766 reviews2017
    Dev: Reactive Drop Team
    Windows
    Median: 1.7 hrsMean: 10.0 hrs≥1hr: 63%

    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.

  3. #3 Unturned - Dedicated Server
    96% matchVery Positive84% of 1,711 reviews2019
    Windows

    Why similar: Multiplayer 100%

  4. #4 Backyard Brawl
    95% matchMixed67% of 72 reviews2018
    Dev: Fullbrik Games
    Windows

    Welcome to Backyard Brawl! A third person laser tag game.

    Why similar: Multiplayer 100%

  5. #5 Codename: Rogue Fleet
    94% matchMixed59% of 318 reviews2016
    Dev: SionoiS
    Windows
    Median: 36 minMean: 8.9 hrs≥1hr: 38%

    Codename: Rogue Fleet is a multiplayer team-based game about spaceships combat.

    Why similar: Multiplayer 100%

  6. #6 DOOM Eternal: idStudio
    92% matchVery Positive94% of 133 reviews2024
    Dev: id SoftwarePub: Bethesda Softworks
    Windows
  7. #7 Holodrive
    93% matchMostly Positive79% of 1,238 reviews2021
    Dev: BitCake StudioPub: Versus Evil
    Windows
    Median: 3.6 hrsMean: 4.3 hrs≥1hr: 83%

    A fast-paced multiplayer shooter where you customize your robot, zoom around with a jetpack, and battle with various weapons. Master the arenas, surprise your enemies, and enjoy the nonstop action!

    Why similar: Multiplayer 100%

  8. #8 FPS Game: Dev Test
    91% matchVery Positive85% of 1,423 reviews2022
    Dev: jackal_dev_test
    Windows

    A Simple, Fun, Multiplayer FPS game, strictly built and packaged for development testing and networking development.

    Why similar: Multiplayer 100%

  9. #9 Murnatan
    91% matchMixed63% of 118 reviews2018
    Dev: AAAGAMES
    Windows · Linux

    Humans VS Aliens FPS shooter combined with RTS.

  10. #10 Drop In - VR F2P
    90% matchVery Positive83% of 562 reviews2020
    Dev: Wild Ox Studios
    Windows

    Drop In - VR F2P is a Free to play Low poly social game space. In Early Access players will be able to hang out in a lobby, play mini games, Squad up for Apoc, Zombies or Sandbox. Missions are being actively developed. DLC will be added after the game comes out of early access.

    Why similar: Multiplayer 100%

  11. #11 FreeInfantry
    88% matchVery Positive81% of 164 reviews2024
    Dev: FreeInfantry Group
    Windows

    Isometric. Massively Multiplayer. Capture The Flag. Skirmish. Bug Hunt. And more. Welcome to FreeInfantry - the world's first massive multiplayer online isometric shooter.

  12. #12 Uebergame
    89% matchMixed54% of 475 reviews2015
    Dev: Duion
    Windows · Linux
    Median: 18 minMean: 6.6 hrs≥1hr: 26%

    A truly free and open source multiplayer shooter, no strings attached. Have casual deathmatch matches on various scenarios. Build your own levels with the ingame editor and assets that come with the game, or just play around and use it as a sandbox.

    Why similar: Multiplayer 100%

  13. #13 Mahlone One
    89% matchMixed49% of 158 reviews2018
    Dev: VM World Studio
    Windows

    Malhone game fps coop

  14. #14 BombTag
    87% matchVery Positive84% of 1,521 reviews2018
    Dev: David Schneider
    Windows
    Median: 48 minMean: 3.2 hrs≥1hr: 41%

    BombTag is an online multiplayer Bomberman-inspired game for up to 8 players. Drop bombs, blow up crates, collect powerups, and blow up your friends - but be careful not to get blown up first!

    Why similar: Multiplayer 100%

  15. #15 Alien Arena: Warriors Of Mars
    86% matchMostly Positive77% of 194 reviews2017
    Dev: COR Entertainment, LLC
    Windows · Linux
    Median: 3.2 hrsMean: 4.0 hrs≥1hr: 90%

    Alien Arena is a furious frag fest with arenas ranging from the small, to the massive. With game modes such as Capture The Flag and Tactical, there are terrific team-based experiences to be had as well as 1v1 duels, free-for-all, and dozens of mutators to alter the game play to your liking.

    Why similar: Multiplayer 100%

  16. #16 Call of Duty: Black Ops III - Multiplayer Starter Pack
    86% matchMixed62% of 189 reviews
    Dev: TreyarchPub: Activision
    Windows · Mac

    The Call of Duty: Black Ops III Multiplayer Starter Pack allows you to experience the ranked Multiplayer game mode of Black Ops III.

    Why similar: Multiplayer 100%

  17. #17 Rogue Operatives Hide and Seek
    85% matchMostly Positive71% of 139 reviews2016
    Dev: SIM720 LIMITED
    Windows
    Median: 3.3 hrsMean: 5.0 hrs≥1hr: 84%

    Hilarious fun as hide and seek mayhem reigns. Play as rogue or operative in multi player fun.

    Why similar: Multiplayer 100%

  18. #18 Arma 3 Tools
    84% matchVery Positive88% of 552 reviews
    Dev: Bohemia Interactive
    Windows

    A complete tools suite for the Real Virtuality game engine powering Arma 3.

  19. #19 Light Bearers
    82% matchVery Positive89% of 1,202 reviews2018
    Dev: FAT BOMB STUDIOS, LLC
    Windows
    Median: 1.1 hrsMean: 8.1 hrs≥1hr: 53%

    Light Bearers is a multiplayer asymmetrical hide and seek game that pits a sinister shadow against cute light bears!

    Why similar: Multiplayer 100%

  20. #20 Bean Battle Brawl
    81% matchVery Positive83% of 54 reviews2024
    Dev: Sb
    Windows

    A simple, early beta 3D multiplayer fps!

    Why similar: Multiplayer 100%

  21. #21 NS2: Combat
    84% matchMixed54% of 301 reviews2014
    Dev: Faultline GamesPub: Unknown Worlds Entertainment
    Windows
    Median: 2.8 hrsMean: 11.7 hrs≥1hr: 80%

    NS2: Combat is a powerful twitch-shooter where space marines battle aliens through a competitive mixture of MOBA & FPS playstyles. Are you ready?

    Why similar: Multiplayer 100%

  22. #22 Deep Space Classic
    83% matchMixed59% of 107 reviews2018
    Dev: Bondo Games
    Windows

    An alien force is threatening to destroy the stability of the galaxy! Play as an unknown creature or a Spacefleet Officer in this Online Sci-Fi Horror!

    Why similar: Multiplayer 100%

  23. #23 Alien Tag
    79% matchMixed38% of 57 reviews2024
    Dev: IRLDLC.COM INC
    Windows

    Reject Monke, Become Alien. Discord.gg/AlienTag. AlienTagVR.com.

    Why similar: Multiplayer 100%

  24. #24 Fractal Fury
    80% matchMostly Positive72% of 149 reviews2021
    Dev: Alex
    Windows

    Fractal Fury is the first online shooter with strategic dismemberment. Free to play for up to 16 players online or locally.

    Why similar: Multiplayer 100%

  25. #25 CS2D
    79% matchVery Positive90% of 10,345 reviews2017
    Dev: Unreal Software
    Windows · Linux
    Median: 36 minMean: 16.9 hrs≥1hr: 35%

    CS2D is a free fast-paced top-down multiplayer shooter. Featuring many different game modes, a built-in map editor and much more.

    Why similar: Multiplayer 100%

  26. #26 Walkover
    81% matchMixed64% of 138 reviews2015
    Dev: Millenium Project Enterprises
    Windows
    Median: 1.2 hrsMean: 42.2 hrs≥1hr: 53%

    It is WAR!Team up with your comrades to stand against the pesky aliens.

    Why similar: Multiplayer 100%

  27. #27 Plastic Playground
    82% matchMostly Negative34% of 151 reviews2016
    Dev: Tomorrow ArtsPub: GP Games
    Windows

    Plastic PlayGround is a fast paced, team based, LAN multiplayer first-person shooter. In PPG you play as everyones favorite toy only this time you get to run, jump, jetpack, grapple, and fly. The goal is to capture as many control points as you can while eliminating and evading hostile toys from the enemy team.

    Why similar: Multiplayer 100%

  28. #28 Worm.is: The Game
    78% matchVery Positive81% of 4,725 reviews2016
    Dev: Freakinware Studios
    Windows · Mac
    Median: 1.2 hrsMean: 12.0 hrs≥1hr: 54%

    Unleash the apex worm in you! Join a world where you eat to grow and aim to become the largest worm around. Dodge viruses, cut off enemy paths, and indulge in addictive multiplayer action. Custom skins, game modes, and more await!

    Why similar: Multiplayer 100%

  29. #29 HEAT REBORN
    76% matchMixed62% of 301 reviews2021
    Dev: HEAT REBORN DEV TEAM
    Windows

    HEAT REBORN is a free massively multiplayer online first-person shooter. Completely re-created the original HEAT PROJECT with modern game engine. Brings you the improvement of graphics, game balance, and even with numbers of new game mode for you!

  30. #30 RockShot
    77% matchMixed47% of 358 reviews2018
    Dev: Soleil Ltd.
    Windows
    Median: 30 minMean: 5.4 hrs≥1hr: 25%

    RockShot is a free-to-play dynamic third-person shooter combining traditional online shooter gameplay with innovative elements. Explore a massive arsenal of firearms or rock the battlefield with crazy melee weapons and deadly airstrikes!

    Why similar: Multiplayer 100%

  31. #31 Aplowcalypse
    76% matchMostly Positive76% of 68 reviews2016
    Dev: Biodrone Studios
    Windows · Mac
    Median: 4.2 hrsMean: 17.3 hrs≥1hr: 57%

    Snow Plows vs Aliens: 4 player, local co-op chaos

  32. #32 WARMODE
    74% matchMixed62% of 16,454 reviews2019
    Dev: Novalink
    Windows
    Median: 54 minMean: 20.8 hrs≥1hr: 48%

    Free to play shooter about the confrontation of two irreconcilable sides, represented by the government military housings and the armed hirelings. Try your hand at virtual battles with off-scale dynamics and hurricane gameplay in the spirit of the classical shooters.

    Why similar: Multiplayer 100%

  33. #33 Aerial Guardian
    77% matchMostly Negative28% of 87 reviews2018
    Dev: Maddnuss GamesPub: Matthew Nuss
    Windows

    Aerial Guardian is a large scale multiplayer battle first person shooter. Choose from several classes and play as a soldier to embroil yourself in a space fleet battle. Choose from a variety of over 20 weapons and several vehicles including mechs.

  34. #34 Black Squad
    73% matchMostly Positive76% of 81,527 reviews2019
    Dev: VALOFE
    Windows
    Median: 1.8 hrsMean: 36.1 hrs≥1hr: 62%

    Black Squad is a free-to-play military first-person-shooter. Players can master their skills and show off their strategies with a wide range of game maps, modes, and weapons to choose from. Join thousands of FPS players worldwide in one of the most played games on Steam!

    Why similar: Multiplayer 100%

  35. #35 Battle Arena
    75% matchMixed64% of 58 reviews2019
    Dev: ShadowWolf Games
    Windows

    Battle Arena is a multiplayer, immersive 2D Sci-Fi shooter! Plunge into the world of space battles and be the first!

  36. #36 Shotgun Shenanigans
    71% matchVery Positive82% of 178 reviews2023
    Dev: 7jake7ash
    Windows

    A multiplayer FPS sports game

    Why similar: Multiplayer 100%

  37. #37 Metal War Online: Retribution
    75% matchMixed58% of 1,084 reviews2015
    Dev: GDT Limited
    Windows
    Median: 1.0 hrsMean: 6.8 hrs≥1hr: 50%

    Fast Online Car Shooter. Unmatched dynamic shooter with a huge selection of futuristic technology! Millions of players.

    Why similar: Multiplayer 100%

  38. #38 Galaxy in Turmoil
    74% matchMostly Negative40% of 306 reviews2020
    Dev: Frontwire Studios, LLC
    Windows

    Galaxy in Turmoil's conceptual Early Access game is a FREE multiplayer combined-arms game set in a brand-new universe, created by a team of volunteers. It’s all about endless arms races, corporate espionage, and, most of all, blasting up on the enemy faction and taking their stuff.

    Why similar: Multiplayer 100%

  39. #39 PaintballX
    72% matchMixed67% of 130 reviews2022
    Dev: KMHgames
    Windows

    PaintballX is an online mutliplayer FPS paintball game! Battle your friends in a casual paintball FPS!

    Why similar: Multiplayer 100%

  40. #40 Modern Assault Tanks
    73% matchMixed46% of 125 reviews2021
    Dev: XDEVS LTD
    Windows · Mac · Linux

    Compete on war and prove your superiority in the tank games genre PVP!

    Why similar: Multiplayer 100%

  41. #41 Divided We Fall: Play For Free
    72% matchMixed55% of 252 reviews2017
    Dev: KAVA Game Studio
    Windows · Mac · Linux
    Median: 1.2 hrsMean: 7.6 hrs≥1hr: 52%

    Unite and fight your way to victory! Divided we Fall is a strategic close-combat multiplayer game that emphasizes the importance of building an effective cohesive squad and executing well thought-out tactics on the battlefield.

    Why similar: Multiplayer 100%

  42. #42 Drone Wars
    69% matchVery Positive82% of 116 reviews2022
    Dev: Ralien Studios
    Windows

    Drone Wars is a simple but unique multiplayer Sci-Fi first-person shooter, where you can play as a heavily armed combat drone or as a human special task force soldier.

    Why similar: Multiplayer 100%

  43. #43 Protonwar
    71% matchVery Positive82% of 114 reviews2018
    Dev: Outer Planet Studios
    Windows

    VR, Multiplayer focused, Fast paced FPS with an emphasis on quick and flowing movement. Featuring DM, TDM , CTF, Domination, Bots to practice against, and a Horde mode for single player or co-op. Room Scale VR with HTC Vive and Oculus Touch. Also included, Non-VR and Seated VR!

    Why similar: Multiplayer 100%

  44. #44 Covert Syndrome
    71% matchMixed68% of 149 reviews2017
    Dev: Offworld Industries
    Windows
    Median: 48 minMean: 10.8 hrs≥1hr: 44%

    Covert Syndrome is a free to play Coop corridor shooter with a focus on unscripted AI and fast tough combat. Created as a prototyping project we wanted to release it to the community so people can experience Co-op VR for free.

  45. #45 Space Warfare
    70% matchMixed58% of 95 reviews2021
    Dev: Little Stories
    Windows · Mac · Linux

    2D casual strategy

  46. #46 [MARS] Total Warfare
    70% matchMostly Positive71% of 117 reviews2018
    Dev: TCR
    Windows

    [MARS] Total Warfare uses authentic Martian landscapes to create an intense RTS experience best described as a hybrid between team multiplayer and massively multiplayer online. Fight over natural resources vs human or AI opponents and conquer a crater ridden world, with pink sky and blue seas!

  47. #47 Fireteam
    69% matchMixed68% of 65 reviews2022
    Dev: Ryan Laley Games
    Windows

    A free to play FPS game brought to you by Ryan Laley Games. Shoot your weapons and throw your grenades to take down your opposition. Welcome to Fireteam soldier!

    Why similar: Multiplayer 100%

  48. #48 Delta Force
    64% matchMixed58% of 193,264 reviews2024
    Dev: Team JadePub: TiMi Studio Group
    Windows
    Median: 4.5 hrsMean: 62.5 hrs≥1hr: 78%

    Play for free in operator-based extraction and full-scale combined arms warfare. Become elite Operators, customize an ever-expanding arsenal of weapons, and deploy into thrill-packed missions across multiple modes.

    Why similar: Multiplayer 100%

  49. #49 Teeworlds
    68% matchVery Positive89% of 4,371 reviews2015
    Dev: Teeworlds Team
    Windows · Mac · Linux
    Median: 42 minMean: 7.3 hrs≥1hr: 39%

    Teeworlds is a free online multiplayer game, available for all major operating systems. Battle with up to 16 players in a variety of game modes, including Team Deathmatch and Capture The Flag. You can even design your own maps!

    Why similar: Multiplayer 100%

  50. #50 Hide and Shriek
    67% matchVery Positive82% of 5,327 reviews2017
    Dev: Funcom
    Windows
    Median: 42 minMean: 2.5 hrs≥1hr: 39%

    Scare or be scared in this FREE adrenaline-pumping multiplayer game full of hijinks and mischief! Set traps, cast spells, and scare the living hell out of your opponent to win!

    Why similar: Multiplayer 100%

  51. #51 Formicide
    68% matchVery Positive82% of 323 reviews2017
    Dev: Rock Wall Games, LLC
    Windows
    Median: 30 minMean: 8.0 hrs≥1hr: 34%

    Formicide is a fast-paced 2D online platformer with a lineup of versatile classes. Think Worms meets Team Fortress 2. Face off with teammates against enemies in destructible environments with the weapons and abilities at your disposal.

    Why similar: Multiplayer 100%

  52. #52 Hired Ops
    66% matchMixed68% of 16,152 reviews2021
    Dev: Absolut Soft LLC
    Windows
    Median: 1.5 hrsMean: 16.1 hrs≥1hr: 59%

    Hired Ops is a session-based online shooter dedicated to fierce conflicts between rival mercenary groups battling on a global scale.

    Why similar: Multiplayer 100%

  53. #53 World War 3
    64% matchMixed54% of 54,576 reviews2022
    Dev: New Generation GamesPub: Wishlist Games
    Windows
    Median: 4.0 hrsMean: 20.8 hrs≥1hr: 77%

    World War 3 is a free-to-play tactical online multiplayer FPS where the world is your battleground. Outgun the enemy in thrilling, team-based skirmishes with a huge arsenal of weapons, vehicles, gadgets, and drones at your disposal.

    Why similar: Multiplayer 100%

  54. #54 Bio Bots
    66% matchMixed68% of 80 reviews2021
    Dev: Bold Statement Games
    Windows

    Bio Bots is a Free to play third-person team-based shooter. Enjoy playing chaotic matches in different game-modes

    Why similar: Multiplayer 100%

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Games Like Alien Swarm: Reactive Drop - SDK

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