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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SAS: Zombie Assault 4
Purge the undead! Intense action-shooter with deep rpg elements, including upgradeable guns and armor, unique class skills, and class special abilities. Entire game can be played single player or as a 4-player online co-op game, including PvP events like Last Man Standing.
Gatekeeper: Infinity
Prologue version of the game Gatekeeper. Gatekeeper: Infinity is a fast-paced rogue-lite shooter where you'll search for the stolen Heart of the Universe and battle machine enemies! Play solo or join forces with friends in co-op mode.
Aliens: Fireteam Elite
Aliens: Fireteam Elite is a cooperative third-person survival game set in the iconic Alien Universe. Battle through hordes of different types of Xenomorph, customize your character and gear, and level-up as you try to contain this ever-growing threat.
Predecessor
Inspired by the legacy of Paragon, built with love by the community, and powered by Unreal Engine 5, Predecessor is the ultimate fusion of shooter action and MOBA strategy. Join more than 2,000,000 players and play for FREE now!
Alien Breed 3: Descent
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.
Sven Co-op
Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team.
Eden Rising
Brace yourself for a brand new action-packed Open World. Explore a huge world to gather materials for gear and defenses. Use everything at your disposal to defend your bases and defeat hordes of hostile monsters. Play solo or up to 8-player online!
Marvel Rivals
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!
Halo: Spartan Strike
Halo: Spartan Strike makes you a Spartan supersoldier battling evil forces. Delve into 30 challenging missions through cities and jungles using a devastating arsenal of weapons, abilities and vehicles including the iconic Warthog against the Covenant and Promethean enemies. *DirectX feature level 10 required*
Halo: Spartan Assault
Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *
EARTH DEFENSE FORCE 5
Stand and fight for humanity. This arcade shooter takes place in the year 2022, as the Earth Defense Force fends off an all-out attack by unknown life forms. Become an EDF soldier, battle against endless hordes of immense enemies, and restore peace to the earth.
Realm Royale Reforged
Join 20+ million players and experience a new kind of battle royale in Realm Royale Reforged! Choose your class, forge deadly weapons, and master powerful abilities to be the last champion standing. Mount up alone or with a team to explore a fantasy world while outrunning the deadly fog.
Dominance
Dominance is a multiplayer top-down shooter, built on a no-limits attitude. Choose between a rich variety of different ability and item combinations, select one of 6 distinct characters. Battle up to 24 foes on the ever-evolving terrain — and prove your Dominance.
Alien Breed: Impact
Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign.
HELLDIVERS™ Dive Harder Edition
HELLDIVERS™ is a hardcore, cooperative, twin stick shooter. As part of the elite unit called the HELLDIVERS, players must work together to protect SUPER EARTH and defeat the enemies of mankind in an intense intergalactic war.
Shadowgrounds
Shadowgrounds breathes fresh air into the action genre with explosive combat sequences, an innovative weapon upgrade system, and an intriguing storyline. The adrenaline-pumping, top-down gameplay and audiovisual fireworks set the scene for this new action experience which also includes single computer (split keyboard or joystick) co-op...
Hazard Ops
Ready for the next generation of 3rd person shooters? Hazard Ops has zombies, monsters, robots, dinosaurs, mechs - pretty much anything you can point a gun at. Sink your teeth into this action-packed online shooter!
Yet Another Zombie Defense
Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.
Tom Clancy’s Rainbow Six® Extraction
Tom Clancy's Rainbow Six® Extraction is a tactical, co-op, PvE first-person shooter where you and your squad face an evolving alien threat. Teamwork, tactics, and flawless execution are key to your survival.
From Space
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!
STAR WARS™ Battlefront
The STAR WARS™ Battlefront™ Ultimate Edition includes the STAR WARS™ Battlefront™ Deluxe Edition as well as the STAR WARS™ Battlefront™ Season Pass.
SYNTHETIK: Arena
Face the varied challenges of the Machine God Zir in ARENA, a standalone expansion for Synthetik: Legion Rising! Leverage the next level in gun-play and experiment with powerful tech in varied action packed Arenas!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 16th 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 264,904 reviews of which 213,442 were positive and 51,462 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 187,937 peak concurrent players over the last day.
8.0
213,442
51,462
187,937
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 987,640 reviews of which 663,258 were positive and 324,382 were negative resulting in a rating of 6.7 out of 10. While seeing 56,623 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
663,258
324,382
56,623
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 1,151,067 reviews of which 1,031,715 were positive and 119,352 were negative resulting in a rating of 8.9 out of 10. While seeing 39,373 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
1,031,715
119,352
39,373
players
4. 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 620,575 reviews of which 540,595 were positive and 79,980 were negative resulting in a rating of 8.6 out of 10. With 38,204 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Alien Swarm.
8.6
540,595
79,980
38,204
players
5. 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 987,024 reviews of which 752,293 were positive and 234,731 were negative resulting in a rating of 7.6 out of 10. With 26,037 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Alien Swarm.
7.6
752,293
234,731
26,037
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 multiplayer game developed and published by Bungie. Released on October 01st 2019 has received 622,838 reviews of which 496,312 were positive and 126,526 were negative resulting in a rating of 7.9 out of 10. With 24,646 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Alien Swarm.
7.9
496,312
126,526
24,646
players
7. 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 98,110 reviews of which 64,093 were positive and 34,017 were negative resulting in a rating of 6.5 out of 10. With 21,047 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Alien Swarm.
6.5
64,093
34,017
21,047
players
8. 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 952,732 reviews of which 929,269 were positive and 23,463 were negative resulting in an impressive rating of 9.7 out of 10. With 20,169 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Alien Swarm.
9.7
929,269
23,463
20,169
players
9. 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 open world survival craft game developed and published by Starry Studio. Released on July 09th 2024 has received 124,888 reviews of which 92,215 were positive and 32,673 were negative resulting in a rating of 7.3 out of 10. With 14,237 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Alien Swarm.
7.3
92,215
32,673
14,237
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 multiplayer game developed and published by Embark Studios. Released on December 07th 2023 has received 225,361 reviews of which 174,851 were positive and 50,510 were negative resulting in a rating of 7.7 out of 10. With 12,167 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Alien Swarm.
7.7
174,851
50,510
12,167
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 16th 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 620 reviews of which 445 were positive and 175 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
175
-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 1,874 reviews of which 1,269 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
1,269
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 126,438 reviews of which 110,946 were positive and 15,492 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
110,946
15,492
-92%
29.13€
2.33€
4. 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 67,700 reviews of which 46,286 were positive and 21,414 were negative resulting in a rating of 6.8 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.
6.8
46,286
21,414
-92%
61.13€
4.89€
5. Serious Sam 3: BFE
Similarity 55% 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 3: BFE is a fps, action and co-op game developed by Croteam and published by Devolver Digital. Released on November 22nd 2011 has received 27,625 reviews of which 24,414 were positive and 3,211 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 91% discount, this title has earned the #5 position in the best deals for games like Alien Swarm.
8.7
24,414
3,211
-91%
29.33€
2.64€
6. 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 1,002 reviews of which 698 were positive and 304 were negative resulting in a rating of 6.7 out of 10. Currently offered at a significant 90% discount, this title has earned the #6 position in the best deals for games like Alien Swarm.
6.7
698
304
-90%
9.99€
0.99€
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 832 reviews of which 662 were positive and 170 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
170
-89%
9.82€
1.08€
8. 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 573 reviews of which 427 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 #8 position in the best deals for games like Alien Swarm.
7.1
427
146
-88%
10.00€
1.20€
9. 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 game developed and published by . Released on September 22nd 2010 has received 1,002 reviews of which 698 were positive and 304 were negative resulting in a rating of 6.7 out of 10. Currently offered at a significant 90% discount, this title has earned the #9 position in the best deals for games like Alien Swarm.
6.7
698
304
-90%
9.99€
0.99€
10. Killing Floor
Similarity 55% 6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun! Killing Floor is a fps, zombies and co-op game developed and published by Tripwire Interactive. Released on May 14th 2009 has received 67,316 reviews of which 63,885 were positive and 3,431 were negative resulting in an impressive rating of 9.3 out of 10. Currently offered at a significant 86% discount, this title has earned the #10 position in the best deals for games like Alien Swarm.
9.3
63,885
3,431
-86%
20.43€
2.86€
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 16th 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 264,904 reviews of which 213,442 were positive and 51,462 were negative resulting in a rating of 8.0 out of 10. With 187,937 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Alien Swarm.
8.0
213,442
51,462
187,937
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 987,640 reviews of which 663,258 were positive and 324,382 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 56,623, this game has secured the #2 spot in the ranking of free games like Alien Swarm.
6.7
663,258
324,382
56,623
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 1,151,067 reviews of which 1,031,715 were positive and 119,352 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 39,373, this game has secured the #3 spot in the ranking of free games like Alien Swarm.
8.9
1,031,715
119,352
39,373
players
4. 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 620,575 reviews of which 540,595 were positive and 79,980 were negative resulting in a rating of 8.6 out of 10. Attracting a solid base of 38,204 players due to its free access, this strategy game has achieved the #4 position in the best free games like Alien Swarm.
8.6
540,595
79,980
38,204
players
5. 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 multiplayer game developed and published by Bungie. Released on October 01st 2019 has received 622,838 reviews of which 496,312 were positive and 126,526 were negative resulting in a rating of 7.9 out of 10. Attracting a solid base of 24,646 players due to its free access, this strategy game has achieved the #5 position in the best free games like Alien Swarm.
7.9
496,312
126,526
24,646
players
6. 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 98,110 reviews of which 64,093 were positive and 34,017 were negative resulting in a rating of 6.5 out of 10. Attracting a solid base of 21,047 players due to its free access, this strategy game has achieved the #6 position in the best free games like Alien Swarm.
6.5
64,093
34,017
21,047
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 open world survival craft game developed and published by Starry Studio. Released on July 09th 2024 has received 124,888 reviews of which 92,215 were positive and 32,673 were negative resulting in a rating of 7.3 out of 10. Attracting a solid base of 14,237 players due to its free access, this strategy game has achieved the #7 position in the best free games like Alien Swarm.
7.3
92,215
32,673
14,237
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 multiplayer game developed and published by Embark Studios. Released on December 07th 2023 has received 225,361 reviews of which 174,851 were positive and 50,510 were negative resulting in a rating of 7.7 out of 10. Attracting a solid base of 12,167 players due to its free access, this strategy game has achieved the #8 position in the best free games like Alien Swarm.
7.7
174,851
50,510
12,167
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 33,468 reviews of which 24,577 were positive and 8,891 were negative resulting in a rating of 7.2 out of 10. Attracting a solid base of 7,058 players due to its free access, this strategy game has achieved the #9 position in the best free games like Alien Swarm.
7.2
24,577
8,891
7,058
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 co-op game developed and published by Wargaming Group Limited. Released on November 15th 2017 has received 145,674 reviews of which 112,392 were positive and 33,282 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 5,876 players due to its free access, this strategy game has achieved the #10 position in the best free games like Alien Swarm.
7.6
112,392
33,282
5,876
players