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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Worm.is: The Game
Smash worms or slither trying! Warning: Incredibly addicting Multiplayer Game!
Back 4 Blood
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.
Zombie Army Trilogy
The cult horror shooter series comes to an apocalyptic conclusion with an epic new third chapter, a heart-pumping new horde mode, and remastered editions of the best-selling Nazi Zombie Army 1 & 2.
Rogue Company
Join 20+ million players in Rogue Company, the ultimate third-person tactical action shooter! Become an agent of Rogue Company and wield powerful weapons, high-tech gadgets, and game-changing abilities. Accept the mission and jump into a variety of 4v4 and 6v6 game modes. Play FREE today!
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.
ASURAJANG
ASURAJANG is an online action PVP game that anyone can enjoy. It features an easy-to-pick-up Battle Royale mode with trendy Anime-style characters and combat that packs a serious punch. Pick your favorite character and engage in strategic battle among 33 players to claim victory!
Guns, Gore and Cannoli 2
Guns, Gore & Cannoli 2 revives the good, old, action platform run & gun genre, but this time with a bunch of humor and buckets of blown off body parts. In this sequel to Guns, Gore & Cannoli, Vinnie Cannoli’s story continues and this time it’s personal.
Rebel Forces
Are you ready to be the ultimate soldier and fight until you defeat all of your enemies?
Shotgun Farmers
Missed shots grow guns in this multiplayer shooter. Fire your bullets into the ground to plant your ammo. The longer it grows the more ammo you will get!
Dead Maze
Dead Maze is a 2D MMO game set in a destroyed contemporary world, filled with zombies. Explore the world, scavenge and craft as many items as possible, to survive the hostile environment and upgrade your gear and camp as you go.
America's Army 3
Download AA3 Today and Become a Member of the elite America's Army Team! America's Army fans and new players alike can now experience America's Army 3, the official U.S. Army game.
Vade Retro : Exorcist
Vade Retro is a PvP exorcism game up to 4 player. Play as Demon and make your opponents go through hell, or join the exorcist team by choosing a specialty to save victims from the devil's grip in this action-packed experience.
Team Fortress 2
Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats!
Call of Duty®: Modern Warfare® 3 (2011)
The best-selling first-person action series of all-time returns with an epic sequel to the multiple GOTY award winner Call of Duty®: Modern Warfare® 2
Mini Royale
Brace yourself for an action-packed shooter experience in Mini Royale! Battle as green army toy soldiers in a massive kids' bedroom, fighting for survival in modes like Battle Royale, Deathmatch, and more—where only the strongest players or teams claim victory.
Battle Islands
Battle friends over air, land and sea in this epic WW2-themed battle strategy game.
EARTH DEFENSE FORCE 6
Live the future of despair.The year is 2024 AD. The survivors fought against the remaining threats while trying their best to continue their recovery.Three years passed in the year 2027. In a new world without hope, the time has come to once again resist the fate of the Earth.
Red Eclipse
Building on over 15 years of gameplay design, Red Eclipse continues to focus on fast paced, agile, easily accessible first person shooter gameplay. For creators, the full power of the Tesseract engine is at your fingertips in the included realtime multiplayer editor.
Remnant: From the Ashes
The world has been thrown into chaos by an ancient evil from another dimension. As one of the last remnants of humanity, you must set out alone or alongside up to two other survivors to face down hordes of deadly enemies to try to carve a foothold, rebuild, and retake what was lost.
RoShamBo
Welcome to RoShamBo arena! A brand new FREE arena fighting game, based on a classic rock-paper-scissors! Choose your character out of dozens unique looks, customize your gear, fight other players, knock their teeth out and become the best in RoShamBo Arena!
Call of Duty®: Modern Warfare® 2 (2009)
The most-anticipated game of the year and the sequel to the best-selling first-person action game of all time, Modern Warfare 2 continues the gripping and heart-racing action as players face off against a new threat dedicated to bringing the world to the brink of collapse.
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 June 16th 2025.
1. Dota 2
Similarity 52% Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own. Dota 2 is a free to play, moba and multiplayer game developed and published by Valve. Released on July 09th 2013 has received 2,498,969 reviews of which 2,037,143 were positive and 461,826 were negative resulting in a rating of 8.1 out of 10. The game has hit the top spot as the #1 most played game like Alien Swarm, thanks to its 336,977 peak concurrent players over the last day.
8.1
2,037,143
461,826
336,977
players
2. Apex Legends™
Similarity 51% 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 994,979 reviews of which 668,053 were positive and 326,926 were negative resulting in a rating of 6.7 out of 10. While seeing 54,423 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
668,053
326,926
54,423
players
3. HELLDIVERS™ 2
Similarity 63% 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 1,017,635 reviews of which 775,883 were positive and 241,752 were negative resulting in a rating of 7.6 out of 10. While seeing 49,558 players online at once in the last 24 hours, this game is currently ranked #3 among games like Alien Swarm based on player count.
7.6
775,883
241,752
49,558
players
4. Team Fortress 2
Similarity 54% 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 1,161,472 reviews of which 1,044,264 were positive and 117,208 were negative resulting in a rating of 8.9 out of 10. With 46,791 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Alien Swarm.
8.9
1,044,264
117,208
46,791
players
5. PAYDAY 2
Similarity 55% PAYDAY 2 is an action-packed, four-player co-op shooter that once again lets gamers don the masks of the original PAYDAY crew - Dallas, Hoxton, Wolf and Chains - as they descend on Washington DC for an epic crime spree. PAYDAY 2 is a co-op, action and fps game developed by OVERKILL - a Starbreeze Studio. and published by Starbreeze Publishing AB. Released on August 13th 2013 has received 663,082 reviews of which 594,327 were positive and 68,755 were negative resulting in a rating of 8.9 out of 10. With 32,971 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Alien Swarm.
8.9
594,327
68,755
32,971
players
6. Delta Force
Similarity 51% 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 114,627 reviews of which 72,717 were positive and 41,910 were negative resulting in a rating of 6.3 out of 10. With 32,107 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Alien Swarm.
6.3
72,717
41,910
32,107
players
7. Left 4 Dead 2
Similarity 58% 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 963,983 reviews of which 940,221 were positive and 23,762 were negative resulting in an impressive rating of 9.7 out of 10. With 30,930 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Alien Swarm.
9.7
940,221
23,762
30,930
players
8. Destiny 2
Similarity 49% 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 625,616 reviews of which 497,891 were positive and 127,725 were negative resulting in a rating of 7.9 out of 10. With 23,501 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Alien Swarm.
7.9
497,891
127,725
23,501
players
9. Once Human
Similarity 53% 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 131,199 reviews of which 97,203 were positive and 33,996 were negative resulting in a rating of 7.3 out of 10. With 19,390 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Alien Swarm.
7.3
97,203
33,996
19,390
players
10. Brawlhalla
Similarity 52% An epic platform fighter for up to 8 players online or local. Try casual free-for-alls, ranked matches, or invite friends to a private room. And it's free! Play cross-platform with millions of players on PlayStation, Xbox, Nintendo Switch, iOS, Android & Steam! Frequent updates. Over sixty Legends. Brawlhalla is a free to play, multiplayer and fighting game developed by Blue Mammoth Games and published by Ubisoft. Released on October 17th 2017 has received 386,456 reviews of which 314,809 were positive and 71,647 were negative resulting in a rating of 8.1 out of 10. With 14,738 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Alien Swarm.
8.1
314,809
71,647
14,738
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 June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Alien Swarm.
1. 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 10,728 reviews of which 9,034 were positive and 1,694 were negative resulting in a rating of 8.2 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like Alien Swarm.
8.2
9,034
1,694
-99%
49.99€
0.82€
2. Warhammer: End Times - Vermintide
Similarity 53% Vermintide is an epic co-operative action combat adventure set in the End Times of the iconic Warhammer Fantasy world. Warhammer: End Times - Vermintide is a action, online co-op and co-op game developed and published by Fatshark. Released on October 23rd 2015 has received 21,090 reviews of which 16,874 were positive and 4,216 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like Alien Swarm.
7.9
16,874
4,216
-99%
28.99€
0.45€
3. Police Stories
Similarity 53% A fresh take on top-down shooters with an emphasis on tactics that forces you to make split second decisions. Neutralize criminals, rescue civilians and defuse bombs in Single Player mode or Co-op. And remember - shooting first is not an option! Police Stories is a action, strategy and co-op game developed and published by HypeTrain Digital. Released on September 19th 2019 has received 8,701 reviews of which 7,406 were positive and 1,295 were negative resulting in a rating of 8.3 out of 10. Thanks to its incredible 98% discount, this game is now the #3 best deal in games like Alien Swarm.
8.3
7,406
1,295
-98%
19.99€
0.53€
4. The Blackout Club
Similarity 51% The Blackout Club is a first-person co-op horror game centered around a group of teenage friends investigating a monstrous secret beneath the skin of their small town. 1-4 players explore procedurally-generated missions against a fearsome enemy you can only see with your eyes closed. The Blackout Club is a horror, co-op and indie game developed and published by Question. Released on July 29th 2019 has received 2,847 reviews of which 2,214 were positive and 633 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 98% discount, this title has earned the #4 position in the best deals for games like Alien Swarm.
7.5
2,214
633
-98%
28.99€
0.68€
5. F.E.A.R. 3
Similarity 56% F.E.A.R. 3 delivers all the hallmarks that define the F.E.A.R. brand: terrifying paranormal experience, frenetic combat and a dramatic storyline. F.E.A.R. 3 is a fps, horror and co-op game developed by Day 1 Studios and published by Warner Bros. Interactive Entertainment. Released on June 21st 2011 has received 12,758 reviews of which 9,070 were positive and 3,688 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like Alien Swarm.
7.0
9,070
3,688
-98%
19.99€
0.45€
6. This Means Warp
Similarity 58% 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 627 reviews of which 447 were positive and 180 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like Alien Swarm.
6.8
447
180
-98%
19.50€
0.41€
7. Alien Rage - Unlimited
Similarity 50% Unleash a fury of powerful weapons as you blast your way through armies of Alien forces hell-bent on taking you down! Battle through 14 intense levels and prepare to face a barrage of beastly-sized bosses that will test your every skill. Each of your 10 weapons comes with two firing modes and you’ll need all of them! Alien Rage - Unlimited is a action, shooter and fps game developed and published by CI Games. Released on September 24th 2013 has received 3,455 reviews of which 2,334 were positive and 1,121 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for games like Alien Swarm.
6.6
2,334
1,121
-98%
19.99€
0.54€
8. From Space
Similarity 69% 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 1,884 reviews of which 1,277 were positive and 607 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for games like Alien Swarm.
6.6
1,277
607
-98%
14.99€
0.31€
9. Gunscape
Similarity 52% Gunscape provides easy-to-use tools based on a block-placement interface everybody's already familiar with to create all types of maps. Don't like building stuff? Then just blast your way through hordes of monsters or duel with other players! Gunscape is a action, indie and multiplayer game developed and published by Blowfish Studios. Released on March 01st 2016 has received 1,249 reviews of which 828 were positive and 421 were negative resulting in a rating of 6.4 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for games like Alien Swarm.
6.4
828
421
-98%
19.99€
0.52€
10. Stars End
Similarity 59% Stars End is a sci-fi survival sandbox set on the wild frontier of a distant star system. Play solo or host your own server as you craft, build, and battle to survive in a galaxy shaped by danger, discovery, and your own grit. Stars End is a co-op, massively multiplayer and multiplayer game developed by Reverie World Studios and published by indie.io. Released on January 08th 2023 has received 1,392 reviews of which 871 were positive and 521 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for games like Alien Swarm.
6.1
871
521
-98%
18.49€
0.43€
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 June 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. Dota 2
Similarity 52% Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own. Dota 2 is a free to play, moba and multiplayer game developed and published by Valve. Released on July 09th 2013 has received 2,498,969 reviews of which 2,037,143 were positive and 461,826 were negative resulting in a rating of 8.1 out of 10. With 336,977 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Alien Swarm.
8.1
2,037,143
461,826
336,977
players
2. Apex Legends™
Similarity 51% 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 994,979 reviews of which 668,053 were positive and 326,926 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 54,423, this game has secured the #2 spot in the ranking of free games like Alien Swarm.
6.7
668,053
326,926
54,423
players
3. Team Fortress 2
Similarity 54% 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 1,161,472 reviews of which 1,044,264 were positive and 117,208 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 46,791, this game has secured the #3 spot in the ranking of free games like Alien Swarm.
8.9
1,044,264
117,208
46,791
players
4. Delta Force
Similarity 51% 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 114,627 reviews of which 72,717 were positive and 41,910 were negative resulting in a rating of 6.3 out of 10. Attracting a solid base of 32,107 players due to its free access, this strategy game has achieved the #4 position in the best free games like Alien Swarm.
6.3
72,717
41,910
32,107
players
5. Destiny 2
Similarity 49% 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 625,616 reviews of which 497,891 were positive and 127,725 were negative resulting in a rating of 7.9 out of 10. Attracting a solid base of 23,501 players due to its free access, this strategy game has achieved the #5 position in the best free games like Alien Swarm.
7.9
497,891
127,725
23,501
players
6. Once Human
Similarity 53% 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 131,199 reviews of which 97,203 were positive and 33,996 were negative resulting in a rating of 7.3 out of 10. Attracting a solid base of 19,390 players due to its free access, this strategy game has achieved the #6 position in the best free games like Alien Swarm.
7.3
97,203
33,996
19,390
players
7. Brawlhalla
Similarity 52% An epic platform fighter for up to 8 players online or local. Try casual free-for-alls, ranked matches, or invite friends to a private room. And it's free! Play cross-platform with millions of players on PlayStation, Xbox, Nintendo Switch, iOS, Android & Steam! Frequent updates. Over sixty Legends. Brawlhalla is a free to play, multiplayer and fighting game developed by Blue Mammoth Games and published by Ubisoft. Released on October 17th 2017 has received 386,456 reviews of which 314,809 were positive and 71,647 were negative resulting in a rating of 8.1 out of 10. Attracting a solid base of 14,738 players due to its free access, this strategy game has achieved the #7 position in the best free games like Alien Swarm.
8.1
314,809
71,647
14,738
players
8. Splitgate 2
Similarity 59% Splitgate 2 is the only free-to-play shooter with portals, delivering next-level gunplay, fluid movement, and a constantly evolving experience, featuring a new Battle Royale where you can portal between unique worlds. Welcome to the future of sport. Splitgate 2 is a shooter, free to play and multiplayer game developed and published by 1047 Games. Released on May 22nd 2025 has received 14,842 reviews of which 9,160 were positive and 5,682 were negative resulting in a rating of 6.1 out of 10. Attracting a solid base of 12,472 players due to its free access, this strategy game has achieved the #8 position in the best free games like Alien Swarm.
6.1
9,160
5,682
12,472
players
9. Unturned
Similarity 54% You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living. Unturned is a free to play, survival and zombies game developed and published by Smartly Dressed Games. Released on July 07th 2017 has received 555,368 reviews of which 506,516 were positive and 48,852 were negative resulting in an impressive rating of 9.0 out of 10. Attracting a solid base of 11,665 players due to its free access, this strategy game has achieved the #9 position in the best free games like Alien Swarm.
9.0
506,516
48,852
11,665
players
10. STALCRAFT: X
Similarity 50% STALCRAFT: X is the largest open-world online game in the Chernobyl Exclusion Zone. Explore the world full of mutants and anomalies alone or with friends — unforgettable emotions guaranteed. STALCRAFT: X is a free to play, mmorpg and multiplayer game developed and published by EXBO. Released on December 09th 2022 has received 78,974 reviews of which 59,715 were positive and 19,259 were negative resulting in a rating of 7.5 out of 10. Attracting a solid base of 5,788 players due to its free access, this strategy game has achieved the #10 position in the best free games like Alien Swarm.
7.5
59,715
19,259
5,788
players