Games like Alien Swarm on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Alien Swarm are available at the bottom of the page.
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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.
Halo Wars: Definitive Edition
Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.
Gene Shift Auto
Gene Shift Auto is a turbo-fast battle royale with roguelike superpowers. Loot, shoot, and drive through a chaotic city to level up godlike synergies. Win rounds to vote for random match modifiers, or if you die, loot as a zombie and get a kill to revive!
Call of Duty®: Black Ops II
Pushing the boundaries of what fans have come to expect from the record-setting entertainment franchise, Call of Duty®: Black Ops II propels players into a near future Cold War
War Robots: Frontiers
Gear up for tactical mech action in War Robots: Frontiers, a free-to-play multiplayer mech shooter. Construct and customize, squad up with Pilots online, and fire up your engines in massive intergalactic battles.
They Can't Stop All Of Us
D.A.B. Your foes in co-op & PvP battles. (D)efend bases with weapons and skill. (A)ttack with clever AI armies. (B)uild amazingly creative defenses.
Halo: The Master Chief Collection
The Master Chief’s iconic journey includes six games, built for PC and collected in a single integrated experience. Whether you’re a long-time fan or meeting Spartan 117 for the first time, The Master Chief Collection is the definitive Halo gaming experience.
Space Hulk: Deathwing Enhanced Edition
Space Hulk: Deathwing - Enhanced Edition is a First-Person Shooter based on Games Workshop’s cult classic board game set in Warhammer 40,000 universe. Expanding upon the original game, and featuring a host of new content, new features and a richer multiplayer mode.
Unfortunate Spacemen
An online multiplayer game about shapeshifting deception and betrayal! As a hapless, brave spaceman employed by The Company you'll work diligently to defend and be rescued from failing outposts, but not everyone around you is who they claim to be...
Counter-Strike Nexon
Counter-Strike Nexon is a Free to Play MMOFPS offering competitive PvP and PvE action including content from the original Counter-Strike and all new game modes, map creation function, weapons, and hordes of Zombies!
Serious Sam 3: BFE
Serious Sam 3: BFE is a prequel to the original indie fast action FPS and Game of the Year sensation - Serious Sam: The First Encounter!
Serious Sam HD: The First Encounter
Serious Sam HD: The First Encounter is a visually upgraded and fully Steam supported remake version of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS which was Gamespot's Game of the Year 2001 and which scored overall of 87% on Metacritic!
BattleCore Arena
BattleCore Arena is a free-to-play, peer-to-peer platform shooter where gravity mastery is the key to victory. Compete in quick PvP battles, using weapons and abilities to eject your opponents out of the arena.
Swing Dunk
Swing Dunk delivers a stunning combination of fast-paced basketball and a stylish hoverboarding experience. With intuitive physics and a high level of freedom in controls, create your own unique basketball moves. Train your skills and SWING your way to victory!
World of Tanks
Jump into the free-to-play team-based shooter with an ever-expanding roster of historical vehicles, stunning graphics, spectacular locales, and orchestral scores. Show your mastery and face other players in thrilling PvP clashes. A unique mix of strategy and action awaits!
Ironsight
Online FPS game, near future background, Resource Warfare between Military Forces and PMC. More than 50 kinds of original weapons with customization option. Use Peripheral objects, Tactical drones, Active objects to experience dynamic warfare.
Zombie Defense
A modern hybrid of the classic RTS and modern Tower Defense. Recruit soldiers, place them on slots and let them shoot incoming waves of zombies by their own. Order supplies, throw grenades, order airstrikes and many more... Perfect mix of strategy, tactics and micromanagement.
Transmissions: Element 120
TE120 is a short single player experience set in the Half-Life Universe featuring a gravity defying weapon that allows you to jump buildings and sustain large falls. The story takes place at a mysterious date & location. Where are you? Why have you been sent?
No More Room in Hell
The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare.
Primal Carnage
A savage online shooter, where players do battle as man or beast in class-based deathmatches and a frantic escape mode. Unleash your inner dinosaur!
Serious Sam HD: The Second Encounter
Serious Sam HD: The Second Encounter is a visually upgraded and fully Steam supported remake of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month!Most played games like Alien Swarm on Steam
Take a look at the top games like Alien Swarm that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. Marvel Rivals
Similarity 65% Marvel Rivals is a Super Hero Team-Based PVP Shooter! Assemble an all-star Marvel squad, devise countless strategies by combining powers to form unique Team-Up skills and fight in destructible, ever-changing battlefields across the continually evolving Marvel universe! Marvel Rivals is a free to play, multiplayer and hero shooter game developed and published by NetEase Games. Released on December 05th 2024 has received 270,085 reviews of which 217,320 were positive and 52,765 were negative resulting in a rating of 8.0 out of 10. The game has hit the top spot as the #1 most played game like Alien Swarm, thanks to its 126,058 peak concurrent players over the last day.
8.0
217,320
52,765
126,058
players
2. Apex Legends™
Similarity 56% Apex Legends is the award-winning, free-to-play Hero Shooter from Respawn Entertainment. Master an ever-growing roster of legendary characters with powerful abilities, and experience strategic squad play and innovative gameplay in the next evolution of Hero Shooter and Battle Royale. Apex Legends™ is a free to play, battle royale and multiplayer game developed by Respawn and published by Electronic Arts. Released on November 04th 2020 has received 988,584 reviews of which 663,861 were positive and 324,723 were negative resulting in a rating of 6.7 out of 10. While seeing 55,172 players online at once in the last 24 hours, this game is currently ranked #2 among games like Alien Swarm based on player count.
6.7
663,861
324,723
55,172
players
3. Team Fortress 2
Similarity 56% Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats! Team Fortress 2 is a free to play, hero shooter and multiplayer game developed and published by Valve. Released on October 10th 2007 has received 1,153,316 reviews of which 1,034,614 were positive and 118,702 were negative resulting in a rating of 8.9 out of 10. While seeing 35,558 players online at once in the last 24 hours, this game is currently ranked #3 among games like Alien Swarm based on player count.
8.9
1,034,614
118,702
35,558
players
4. Delta Force
Similarity 56% Delta Force is back! The iconic series returns as the definitive free-to-play modern team-based tactical shooter and featuring three distinct gameplay modes: large-scale PvP warfare, intense extraction shooter action, and a remake of the legendary Black Hawk Down campaign. Delta Force is a free to play, fps and multiplayer game developed by Team Jade and published by TiMi Studio Group. Released on December 04th 2024 has received 100,523 reviews of which 65,408 were positive and 35,115 were negative resulting in a rating of 6.5 out of 10. With 33,340 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Alien Swarm.
6.5
65,408
35,115
33,340
players
5. Warframe
Similarity 59% Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game Warframe is a free to play, action rpg and looter shooter game developed and published by Digital Extremes. Released on March 25th 2013 has received 622,221 reviews of which 542,080 were positive and 80,141 were negative resulting in a rating of 8.7 out of 10. With 32,759 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Alien Swarm.
8.7
542,080
80,141
32,759
players
6. Destiny 2
Similarity 53% Destiny 2 is an action MMO with a single evolving world that you and your friends can join anytime, anywhere, absolutely free. Destiny 2 is a free to play, open world and looter shooter game developed and published by Bungie. Released on October 01st 2019 has received 623,243 reviews of which 496,575 were positive and 126,668 were negative resulting in a rating of 7.9 out of 10. With 24,858 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Alien Swarm.
7.9
496,575
126,668
24,858
players
7. Once Human
Similarity 57% Once Human is a multiplayer open-world survival game set in a strange, post-apocalyptic future. Unite with friends to fight monstrous enemies, uncover secret plots, compete for resources, and build your own territory. Once, you were merely human. Now, you have the power to remake the world. Once Human is a multiplayer, free to play and survival game developed and published by Starry Studio. Released on July 09th 2024 has received 126,678 reviews of which 93,632 were positive and 33,046 were negative resulting in a rating of 7.3 out of 10. With 23,033 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Alien Swarm.
7.3
93,632
33,046
23,033
players
8. HELLDIVERS™ 2
Similarity 58% The Galaxy’s Last Line of Offence. Enlist in the Helldivers and join the fight for freedom across a hostile galaxy in a fast, frantic, and ferocious third-person shooter. HELLDIVERS™ 2 is a online co-op, pve and third-person shooter game developed by Arrowhead Game Studios and published by PlayStation Publishing LLC. Released on February 08th 2024 has received 989,576 reviews of which 755,031 were positive and 234,545 were negative resulting in a rating of 7.6 out of 10. With 18,780 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Alien Swarm.
7.6
755,031
234,545
18,780
players
9. Left 4 Dead 2
Similarity 51% Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008. This co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns. Left 4 Dead 2 is a zombies, co-op and fps game developed and published by Valve. Released on November 16th 2009 has received 955,598 reviews of which 932,058 were positive and 23,540 were negative resulting in an impressive rating of 9.7 out of 10. With 17,964 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Alien Swarm.
9.7
932,058
23,540
17,964
players
10. THE FINALS
Similarity 56% Join THE FINALS, the world-famous, free-to-play, combat-centered game show! Fight alongside your teammates in virtual arenas that you can alter, exploit, and even destroy. Build your own playstyle in this first-person shooter to win escalating tournaments and lasting fame. THE FINALS is a destruction, free to play and shooter game developed and published by Embark Studios. Released on December 07th 2023 has received 227,357 reviews of which 176,572 were positive and 50,785 were negative resulting in a rating of 7.7 out of 10. With 10,633 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Alien Swarm.
7.7
176,572
50,785
10,633
players
Best deals on games like Alien Swarm on Steam
Discover fantastic savings with the best discounts on a variety of games like Alien Swarm available on Steam right now, updated on April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Alien Swarm.
1. This Means Warp
Similarity 52% It’s co-op space survival fun, Jim, but not as we know it. This Means Warp is an intense spaceship management roguelite experience for 1-4 players. Explore a procedurally generated universe, upgrade your ship, battle dangerous enemies and adapt your strategies to survive in a hostile galaxy. This Means Warp is a survival, online co-op and space game developed by Outlier and published by Jagex Ltd. Released on May 04th 2023 has received 619 reviews of which 445 were positive and 174 were negative resulting in a rating of 6.9 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Alien Swarm.
6.9
445
174
-95%
20.00€
1.00€
2. From Space
Similarity 62% From Space is a solo and co-op action-shooter for squads up to four players. Take on the challenge of liberating the earth from an alien infestation with your friends, using over-the-top weaponry in a post-apocalyptic world with awesomely stylized graphics. The apocalypse has never been so much fun! From Space is a action, co-op and online co-op game developed by Triangle Studios and published by Curve Games. Released on November 03rd 2022 has received 1,876 reviews of which 1,271 were positive and 605 were negative resulting in a rating of 6.6 out of 10. Thanks to its incredible 93% discount, this game is now the #2 best deal in games like Alien Swarm.
6.6
1,271
605
-93%
14.29€
1.00€
3. Killing Floor 2
Similarity 54% In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem. Killing Floor 2 is a zombies, multiplayer and online co-op game developed and published by Tripwire Interactive. Released on November 18th 2016 has received 126,532 reviews of which 111,048 were positive and 15,484 were negative resulting in a rating of 8.7 out of 10. Thanks to its incredible 92% discount, this game is now the #3 best deal in games like Alien Swarm.
8.7
111,048
15,484
-92%
29.13€
2.33€
4. Strange Brigade
Similarity 57% Embark on an exotic journey into danger in this rip-roaring 1930s third person adventure for 1-4 players! Encounter pulse-pounding action, treacherous traps and tales of derring-do! Strange Brigade is a action, adventure and co-op game developed and published by Rebellion. Released on August 27th 2018 has received 10,667 reviews of which 8,990 were positive and 1,677 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 92% discount, this title has earned the #4 position in the best deals for games like Alien Swarm.
8.2
8,990
1,677
-92%
49.13€
3.93€
5. Back 4 Blood
Similarity 51% Back 4 Blood is a thrilling cooperative first-person shooter from the creators of the critically acclaimed Left 4 Dead franchise. Experience the intense 4 player co-op narrative campaign, competitive multiplayer as human or Ridden, and frenetic gameplay that keeps you in the action. Back 4 Blood is a zombies, online co-op and multiplayer game developed by Turtle Rock Studios and published by Warner Bros. Games. Released on October 12th 2021 has received 67,866 reviews of which 46,414 were positive and 21,452 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 92% discount, this title has earned the #5 position in the best deals for games like Alien Swarm.
6.8
46,414
21,452
-92%
62.25€
4.98€
6. POSTAL Redux
Similarity 52% POSTAL Redux is a high definition remake of the classic dark and surreal twin-stick isometric shooter. Take control of The POSTAL Dude as he fights to survive in a world gone mad with violence. POSTAL Redux is a online co-op, multiplayer and singleplayer game developed and published by Running With Scissors. Released on May 20th 2016 has received 6,638 reviews of which 6,104 were positive and 534 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 89% discount, this title has earned the #6 position in the best deals for games like Alien Swarm.
8.9
6,104
534
-89%
9.09€
1.00€
7. Livelock
Similarity 59% Livelock is a co-operative top-down shooter where you play solo or with up to two allies to break the cycle of infinite war between machines. As one of the remaining Capital Intellects, your role is to unlock Eden and revive humanity. Livelock is a action, top-down shooter and co-op game developed by Tuque Games and published by Arc Games. Released on August 30th 2016 has received 833 reviews of which 662 were positive and 171 were negative resulting in a rating of 7.6 out of 10. Currently offered at a significant 89% discount, this title has earned the #7 position in the best deals for games like Alien Swarm.
7.6
662
171
-89%
9.82€
1.08€
8. Sniper Elite: Nazi Zombie Army 2
Similarity 53% ** Please note: a remastered and improved edition of this game is now available in Zombie Army Trilogy.**Experience a terrifyingly intense co-op campaign for up to four players in this gut-wrenching sequel to Steam best-seller, Sniper Elite: Nazi Zombie Army. Sniper Elite: Nazi Zombie Army 2 is a zombies, action and co-op game developed by and published by Rebellion. Released on October 31st 2013 has received 4,118 reviews of which 3,491 were positive and 627 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 88% discount, this title has earned the #8 position in the best deals for games like Alien Swarm.
8.2
3,491
627
-88%
14.67€
1.76€
9. Alien Breed 3: Descent
Similarity 69% Experience the final explosive chapter in the Alien Breed series and uncover the horrifying truth surrounding the existence of the Breed. Launch discount good thru Nov. 24 10am PST. Alien Breed 3: Descent is a action, shooter and isometric game developed and published by Team17 Digital Ltd. Released on November 17th 2010 has received 574 reviews of which 428 were positive and 146 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 88% discount, this title has earned the #9 position in the best deals for games like Alien Swarm.
7.1
428
146
-88%
10.00€
1.20€
10. Alien Breed 2: Assault
Similarity 61% Can you survive the alien onslaught? Gamers across the world will now have a chance to play the next chapter in this high-budget, high-quality series. Alien Breed 2: Assault is a action, shooter and aliens game developed and published by Team17 Digital Ltd. Released on September 22nd 2010 has received 1,003 reviews of which 699 were positive and 304 were negative resulting in a rating of 6.7 out of 10. Currently offered at a significant 88% discount, this title has earned the #10 position in the best deals for games like Alien Swarm.
6.7
699
304
-88%
10.00€
1.20€
Free games like Alien Swarm on Steam
Check out this fantastic list of free-to-play games like Alien Swarm you can enjoy on Steam right now, updated on April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Alien Swarm.
1. Marvel Rivals
Similarity 65% Marvel Rivals is a Super Hero Team-Based PVP Shooter! Assemble an all-star Marvel squad, devise countless strategies by combining powers to form unique Team-Up skills and fight in destructible, ever-changing battlefields across the continually evolving Marvel universe! Marvel Rivals is a free to play, multiplayer and hero shooter game developed and published by NetEase Games. Released on December 05th 2024 has received 270,085 reviews of which 217,320 were positive and 52,765 were negative resulting in a rating of 8.0 out of 10. With 126,058 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Alien Swarm.
8.0
217,320
52,765
126,058
players
2. Apex Legends™
Similarity 56% Apex Legends is the award-winning, free-to-play Hero Shooter from Respawn Entertainment. Master an ever-growing roster of legendary characters with powerful abilities, and experience strategic squad play and innovative gameplay in the next evolution of Hero Shooter and Battle Royale. Apex Legends™ is a free to play, battle royale and multiplayer game developed by Respawn and published by Electronic Arts. Released on November 04th 2020 has received 988,584 reviews of which 663,861 were positive and 324,723 were negative resulting in a rating of 6.7 out of 10. Thanks to its free to play tag and a daily player base of 55,172, this game has secured the #2 spot in the ranking of free games like Alien Swarm.
6.7
663,861
324,723
55,172
players
3. Team Fortress 2
Similarity 56% Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats! Team Fortress 2 is a free to play, hero shooter and multiplayer game developed and published by Valve. Released on October 10th 2007 has received 1,153,316 reviews of which 1,034,614 were positive and 118,702 were negative resulting in a rating of 8.9 out of 10. Thanks to its free to play tag and a daily player base of 35,558, this game has secured the #3 spot in the ranking of free games like Alien Swarm.
8.9
1,034,614
118,702
35,558
players
4. Delta Force
Similarity 56% Delta Force is back! The iconic series returns as the definitive free-to-play modern team-based tactical shooter and featuring three distinct gameplay modes: large-scale PvP warfare, intense extraction shooter action, and a remake of the legendary Black Hawk Down campaign. Delta Force is a free to play, fps and multiplayer game developed by Team Jade and published by TiMi Studio Group. Released on December 04th 2024 has received 100,523 reviews of which 65,408 were positive and 35,115 were negative resulting in a rating of 6.5 out of 10. Attracting a solid base of 33,340 players due to its free access, this strategy game has achieved the #4 position in the best free games like Alien Swarm.
6.5
65,408
35,115
33,340
players
5. Warframe
Similarity 59% Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game Warframe is a free to play, action rpg and looter shooter game developed and published by Digital Extremes. Released on March 25th 2013 has received 622,221 reviews of which 542,080 were positive and 80,141 were negative resulting in a rating of 8.7 out of 10. Attracting a solid base of 32,759 players due to its free access, this strategy game has achieved the #5 position in the best free games like Alien Swarm.
8.7
542,080
80,141
32,759
players
6. Destiny 2
Similarity 53% Destiny 2 is an action MMO with a single evolving world that you and your friends can join anytime, anywhere, absolutely free. Destiny 2 is a free to play, open world and looter shooter game developed and published by Bungie. Released on October 01st 2019 has received 623,243 reviews of which 496,575 were positive and 126,668 were negative resulting in a rating of 7.9 out of 10. Attracting a solid base of 24,858 players due to its free access, this strategy game has achieved the #6 position in the best free games like Alien Swarm.
7.9
496,575
126,668
24,858
players
7. Once Human
Similarity 57% Once Human is a multiplayer open-world survival game set in a strange, post-apocalyptic future. Unite with friends to fight monstrous enemies, uncover secret plots, compete for resources, and build your own territory. Once, you were merely human. Now, you have the power to remake the world. Once Human is a multiplayer, free to play and survival game developed and published by Starry Studio. Released on July 09th 2024 has received 126,678 reviews of which 93,632 were positive and 33,046 were negative resulting in a rating of 7.3 out of 10. Attracting a solid base of 23,033 players due to its free access, this strategy game has achieved the #7 position in the best free games like Alien Swarm.
7.3
93,632
33,046
23,033
players
8. THE FINALS
Similarity 56% Join THE FINALS, the world-famous, free-to-play, combat-centered game show! Fight alongside your teammates in virtual arenas that you can alter, exploit, and even destroy. Build your own playstyle in this first-person shooter to win escalating tournaments and lasting fame. THE FINALS is a destruction, free to play and shooter game developed and published by Embark Studios. Released on December 07th 2023 has received 227,357 reviews of which 176,572 were positive and 50,785 were negative resulting in a rating of 7.7 out of 10. Attracting a solid base of 10,633 players due to its free access, this strategy game has achieved the #8 position in the best free games like Alien Swarm.
7.7
176,572
50,785
10,633
players
9. FragPunk
Similarity 59% FragPunk is a thrilling 5v5 hero shooter where Shard Cards allow you to break the rules of combat and ensure that no two rounds are ever the same. Get ready to unleash your skills! FragPunk is a fps, free to play and hero shooter game developed and published by Bad Guitar Studio. Released on March 06th 2025 has received 35,920 reviews of which 26,418 were positive and 9,502 were negative resulting in a rating of 7.3 out of 10. Attracting a solid base of 7,932 players due to its free access, this strategy game has achieved the #9 position in the best free games like Alien Swarm.
7.3
26,418
9,502
7,932
players
10. World of Warships
Similarity 59% Immerse yourself in thrilling naval battles and assemble an armada of over 600 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players! World of Warships is a free to play, naval combat and action game developed and published by Wargaming Group Limited. Released on November 15th 2017 has received 146,077 reviews of which 112,696 were positive and 33,381 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 3,513 players due to its free access, this strategy game has achieved the #10 position in the best free games like Alien Swarm.
7.6
112,696
33,381
3,513
players