
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.

Similar Games

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

Alien Swarm: Reactive Drop
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.
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- #1 Alien Swarm97% matchVery Positive95% of 21,613 reviews2010Dev: ValveWindowsMedian: 2.4 hrsMean: 35.9 hrs≥1hr: 65%
Co-operative multiplayer game and complete code base available for free.
Why similar: Multiplayer 100%
- #2 Alien Swarm: Reactive Drop96% matchVery Positive95% of 23,766 reviews2017Dev: Reactive Drop TeamWindowsMedian: 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 Unturned - Dedicated Server96% matchVery Positive84% of 1,711 reviews2019Windows
Why similar: Multiplayer 100%
- #4 Backyard Brawl95% matchMixed67% of 72 reviews2018Dev: Fullbrik GamesWindows
Welcome to Backyard Brawl! A third person laser tag game.
Why similar: Multiplayer 100%
- #5 Codename: Rogue Fleet94% matchMixed59% of 318 reviews2016Dev: SionoiSWindowsMedian: 36 minMean: 8.9 hrs≥1hr: 38%
Codename: Rogue Fleet is a multiplayer team-based game about spaceships combat.
Why similar: Multiplayer 100%
- #6 DOOM Eternal: idStudio92% matchVery Positive94% of 133 reviews2024Dev: id SoftwarePub: Bethesda SoftworksWindows
- #7 Holodrive93% matchMostly Positive79% of 1,238 reviews2021Dev: BitCake StudioPub: Versus EvilWindowsMedian: 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 FPS Game: Dev Test91% matchVery Positive85% of 1,423 reviews2022Dev: jackal_dev_testWindows
A Simple, Fun, Multiplayer FPS game, strictly built and packaged for development testing and networking development.
Why similar: Multiplayer 100%
- #9 Murnatan91% matchMixed63% of 118 reviews2018Dev: AAAGAMESWindows · Linux
Humans VS Aliens FPS shooter combined with RTS.
- #10 Drop In - VR F2P90% matchVery Positive83% of 562 reviews2020Dev: Wild Ox StudiosWindows
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 FreeInfantry88% matchVery Positive81% of 164 reviews2024Dev: FreeInfantry GroupWindows
Isometric. Massively Multiplayer. Capture The Flag. Skirmish. Bug Hunt. And more. Welcome to FreeInfantry - the world's first massive multiplayer online isometric shooter.
- #12 Uebergame89% matchMixed54% of 475 reviews2015Dev: DuionWindows · LinuxMedian: 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 Mahlone One89% matchMixed49% of 158 reviews2018Dev: VM World StudioWindows
Malhone game fps coop
- #14 BombTag87% matchVery Positive84% of 1,521 reviews2018Dev: David SchneiderWindowsMedian: 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 Alien Arena: Warriors Of Mars86% matchMostly Positive77% of 194 reviews2017Dev: COR Entertainment, LLCWindows · LinuxMedian: 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 Call of Duty: Black Ops III - Multiplayer Starter Pack86% matchMixed62% of 189 reviewsDev: TreyarchPub: ActivisionWindows · 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 Rogue Operatives Hide and Seek85% matchMostly Positive71% of 139 reviews2016Dev: SIM720 LIMITEDWindowsMedian: 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 Arma 3 Tools84% matchVery Positive88% of 552 reviewsDev: Bohemia InteractiveWindows
A complete tools suite for the Real Virtuality game engine powering Arma 3.
- #19 Light Bearers82% matchVery Positive89% of 1,202 reviews2018Dev: FAT BOMB STUDIOS, LLCWindowsMedian: 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 Bean Battle Brawl81% matchVery Positive83% of 54 reviews2024Dev: SbWindows
A simple, early beta 3D multiplayer fps!
Why similar: Multiplayer 100%
- #21 NS2: Combat84% matchMixed54% of 301 reviews2014Dev: Faultline GamesPub: Unknown Worlds EntertainmentWindowsMedian: 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 Deep Space Classic83% matchMixed59% of 107 reviews2018Dev: Bondo GamesWindows
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 Alien Tag79% matchMixed38% of 57 reviews2024Dev: IRLDLC.COM INCWindows
Reject Monke, Become Alien. Discord.gg/AlienTag. AlienTagVR.com.
Why similar: Multiplayer 100%
- #24 Fractal Fury80% matchMostly Positive72% of 149 reviews2021Dev: AlexWindows
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 CS2D79% matchVery Positive90% of 10,345 reviews2017Dev: Unreal SoftwareWindows · LinuxMedian: 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 Walkover81% matchMixed64% of 138 reviews2015Dev: Millenium Project EnterprisesWindowsMedian: 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 Plastic Playground82% matchMostly Negative34% of 151 reviews2016Dev: Tomorrow ArtsPub: GP GamesWindows
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 Worm.is: The Game78% matchVery Positive81% of 4,725 reviews2016Dev: Freakinware StudiosWindows · MacMedian: 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 HEAT REBORN76% matchMixed62% of 301 reviews2021Dev: HEAT REBORN DEV TEAMWindows
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 RockShot77% matchMixed47% of 358 reviews2018Dev: Soleil Ltd.WindowsMedian: 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 Aplowcalypse76% matchMostly Positive76% of 68 reviews2016Dev: Biodrone StudiosWindows · MacMedian: 4.2 hrsMean: 17.3 hrs≥1hr: 57%
Snow Plows vs Aliens: 4 player, local co-op chaos
- #32 WARMODE74% matchMixed62% of 16,454 reviews2019Dev: NovalinkWindowsMedian: 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 Aerial Guardian77% matchMostly Negative28% of 87 reviews2018Dev: Maddnuss GamesPub: Matthew NussWindows
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 Black Squad73% matchMostly Positive76% of 81,527 reviews2019Dev: VALOFEWindowsMedian: 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 Battle Arena75% matchMixed64% of 58 reviews2019Dev: ShadowWolf GamesWindows
Battle Arena is a multiplayer, immersive 2D Sci-Fi shooter! Plunge into the world of space battles and be the first!
- #36 Shotgun Shenanigans71% matchVery Positive82% of 178 reviews2023Dev: 7jake7ashWindows
A multiplayer FPS sports game
Why similar: Multiplayer 100%
- #37 Metal War Online: Retribution75% matchMixed58% of 1,084 reviews2015Dev: GDT LimitedWindowsMedian: 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 Galaxy in Turmoil74% matchMostly Negative40% of 306 reviews2020Dev: Frontwire Studios, LLCWindows
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 PaintballX72% matchMixed67% of 130 reviews2022Dev: KMHgamesWindows
PaintballX is an online mutliplayer FPS paintball game! Battle your friends in a casual paintball FPS!
Why similar: Multiplayer 100%
- #40 Modern Assault Tanks73% matchMixed46% of 125 reviews2021Dev: XDEVS LTDWindows · Mac · Linux
Compete on war and prove your superiority in the tank games genre PVP!
Why similar: Multiplayer 100%
- #41 Divided We Fall: Play For Free72% matchMixed55% of 252 reviews2017Dev: KAVA Game StudioWindows · Mac · LinuxMedian: 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 Drone Wars69% matchVery Positive82% of 116 reviews2022Dev: Ralien StudiosWindows
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 Protonwar71% matchVery Positive82% of 114 reviews2018Dev: Outer Planet StudiosWindows
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 Covert Syndrome71% matchMixed68% of 149 reviews2017Dev: Offworld IndustriesWindowsMedian: 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 Space Warfare70% matchMixed58% of 95 reviews2021Dev: Little StoriesWindows · Mac · Linux
2D casual strategy
- #46 [MARS] Total Warfare70% matchMostly Positive71% of 117 reviews2018Dev: TCRWindows
[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 Fireteam69% matchMixed68% of 65 reviews2022Dev: Ryan Laley GamesWindows
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 Delta Force64% matchMixed58% of 193,264 reviews2024Dev: Team JadePub: TiMi Studio GroupWindowsMedian: 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 Teeworlds68% matchVery Positive89% of 4,371 reviews2015Dev: Teeworlds TeamWindows · Mac · LinuxMedian: 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 Hide and Shriek67% matchVery Positive82% of 5,327 reviews2017Dev: FuncomWindowsMedian: 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 Formicide68% matchVery Positive82% of 323 reviews2017Dev: Rock Wall Games, LLCWindowsMedian: 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 Hired Ops66% matchMixed68% of 16,152 reviews2021Dev: Absolut Soft LLCWindowsMedian: 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 World War 364% matchMixed54% of 54,576 reviews2022Dev: New Generation GamesPub: Wishlist GamesWindowsMedian: 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 Bio Bots66% matchMixed68% of 80 reviews2021Dev: Bold Statement GamesWindows
Bio Bots is a Free to play third-person team-based shooter. Enjoy playing chaotic matches in different game-modes
Why similar: Multiplayer 100%
